996 Python Engineer jobs in Canada
Python Engineer / Data Scientist
Mississauga, Ontario
Citigroup
Posted 1 day ago
Job Viewed
Job Description
**We are seeking a talented and experienced Python Engineer with a strong background in Data Science to join our team. You will play a key role in developing strategic projects for a new Transaction Monitoring platform used across multiple businesses within Markets Technologies group. This platform is critical for detecting and preventing market abuse, ensuring the integrity of our financial systems.**
**As a Python Engineer / Data Scientist, you will be responsible for building robust data pipelines, developing innovative GenAI solutions, and implementing custom algorithms to identify sophisticated market abuse patterns. You will contribute to architectural decisions, optimize engineering processes, and help maintain application health, infrastructure setup, and CI/CD pipelines.**
**This is an exciting opportunity to work on a high-impact project that will significantly influence our business and shape the future architecture of our transaction monitoring capabilities. You will be part of a dynamic team driving innovation in a critical area of the financial industry.**
**Key Responsibilities:**
**Design, develop, and maintain data-centric applications that host data pipelines and algorithms for detecting potential market abuse.**
**Develop and implement GenAI-based solutions for the financial industry, leveraging foundational models such as Gemini, LLama, GPT, and Claude.**
**Collaborate closely with clients and stakeholders to understand their requirements for platform development features and prioritize work accordingly.**
**Work effectively in a multidisciplinary team, building strong relationships with developers, Quants/Data Scientists, and production support teams.**
**Participate in the full software development lifecycle, from design and implementation to testing and deployment.**
**Contribute to monitoring application health, infrastructure setup, and CI/CD processes.**
**Skills & Qualifications:**
**Extensive experience in designing, developing, and deploying high-performance Python-based backend services**
**Expertise with Pandas & NumPy for data manipulation and analysis.**
**Working knowledge of Kafka, Dask, and GenAI technologies.**
**Understanding of databases and experience with SQL and NoSQL technologies (e.g., SQL Server, Oracle, Couchbase, MongoDB).**
**Experience working in a DevOps culture and a strong advocate for automation and continuous improvement.**
**Demonstrated high development standards, with a strong focus on code quality, unit testing, continuous integration, and deployment.**
**Excellent communication and interpersonal skills, with a proven ability to interact with clients and deliver results.**
**Experience working in fast-paced development environments, with a track record of delivering high-quality solutions on time and within budget.**
**Qualifications:**
**5-8 years of relevant experience**
**Experience in systems analysis and programming of software applications**
**Experience in developing and maintaining successful projects**
**Working knowledge of consulting/project management techniques/methods**
**Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements**
**Education:**
**Bachelor's degree/University degree or equivalent experience**
**This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.**
---
**Job Family Group:**
Technology
---
**Job Family:**
Applications Development
---
**Time Type:**
Full time
---
**Most Relevant Skills**
Please see the requirements listed above.
---
**Other Relevant Skills**
For complementary skills, please see above and/or contact the recruiter.
---
_Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._
_If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi ( _._
_View Citi's_ _EEO Policy Statement ( _and the_ _Know Your Rights ( _poster._
Citi is an equal opportunity and affirmative action employer.
Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.
**As a Python Engineer / Data Scientist, you will be responsible for building robust data pipelines, developing innovative GenAI solutions, and implementing custom algorithms to identify sophisticated market abuse patterns. You will contribute to architectural decisions, optimize engineering processes, and help maintain application health, infrastructure setup, and CI/CD pipelines.**
**This is an exciting opportunity to work on a high-impact project that will significantly influence our business and shape the future architecture of our transaction monitoring capabilities. You will be part of a dynamic team driving innovation in a critical area of the financial industry.**
**Key Responsibilities:**
**Design, develop, and maintain data-centric applications that host data pipelines and algorithms for detecting potential market abuse.**
**Develop and implement GenAI-based solutions for the financial industry, leveraging foundational models such as Gemini, LLama, GPT, and Claude.**
**Collaborate closely with clients and stakeholders to understand their requirements for platform development features and prioritize work accordingly.**
**Work effectively in a multidisciplinary team, building strong relationships with developers, Quants/Data Scientists, and production support teams.**
**Participate in the full software development lifecycle, from design and implementation to testing and deployment.**
**Contribute to monitoring application health, infrastructure setup, and CI/CD processes.**
**Skills & Qualifications:**
**Extensive experience in designing, developing, and deploying high-performance Python-based backend services**
**Expertise with Pandas & NumPy for data manipulation and analysis.**
**Working knowledge of Kafka, Dask, and GenAI technologies.**
**Understanding of databases and experience with SQL and NoSQL technologies (e.g., SQL Server, Oracle, Couchbase, MongoDB).**
**Experience working in a DevOps culture and a strong advocate for automation and continuous improvement.**
**Demonstrated high development standards, with a strong focus on code quality, unit testing, continuous integration, and deployment.**
**Excellent communication and interpersonal skills, with a proven ability to interact with clients and deliver results.**
**Experience working in fast-paced development environments, with a track record of delivering high-quality solutions on time and within budget.**
**Qualifications:**
**5-8 years of relevant experience**
**Experience in systems analysis and programming of software applications**
**Experience in developing and maintaining successful projects**
**Working knowledge of consulting/project management techniques/methods**
**Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements**
**Education:**
**Bachelor's degree/University degree or equivalent experience**
**This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.**
---
**Job Family Group:**
Technology
---
**Job Family:**
Applications Development
---
**Time Type:**
Full time
---
**Most Relevant Skills**
Please see the requirements listed above.
---
**Other Relevant Skills**
For complementary skills, please see above and/or contact the recruiter.
---
_Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._
_If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi ( _._
_View Citi's_ _EEO Policy Statement ( _and the_ _Know Your Rights ( _poster._
Citi is an equal opportunity and affirmative action employer.
Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.
This advertiser has chosen not to accept applicants from your region.
0
Senior Python Backend Engineer
Calgary, Alberta
Data Theorem
Posted today
Job Viewed
Job Description
Job Description
Job Description
Data Theorem is an exciting company focused on creating a more secure world for data. Rooted in a strong Engineer first culture, every employee has an impact on product and direction. We are searching for exceptional talent pursuing an opportunity to grow and take ownership of the projects that resonate most with them.
As a Senior Python Backend Engineer, you will be responsible for implementing web services, libraries and tools in Python, in order to automate the security analysis of mobile, cloud and web applications, at scale. We help thousands of Developers and Security Engineers discover, understand, and fix security and privacy issues affecting their applications.
You will:
Implement web services using Python, and deploy them to Google Cloud using modern technologies such as Cloud Functions and Cloud Run.
Collaborate with the Design team and the Front-end team to build new customer-facing UIs and flows for security analysis and automation.
Be an active member of the Data Theorem's Engineering team, which is spread across the United States, England, France, and Canada.
Contribute to our scanning platform, which is able to scan millions of mobile, web, and cloud assets every day to validate their security.
We’re looking for someone who has:
4+ years of Software Engineering experience.
Significant experience implementing web services and APIs in Python.
Familiarity with modern practices and tools for developing in Python (testing frameworks, type annotations, etc.).
Bonus points: experience with Google Cloud, Cloud Run, PostgreSQL, or Firestore.
Powered by JazzHR
QKrZYYQfke
This advertiser has chosen not to accept applicants from your region.
1
Lead Software Engineer-(Python Expertise)
M4W3E2 East York, Ontario
Mastercard
Posted 4 days ago
Job Viewed
Job Description
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Lead Software Engineer-(Python Expertise) Who is Mastercard?Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview:
Mastercard's RiskRecon team is looking for a Lead Software Engineer to drive the design, development, and delivery of cutting-edge risk assessment software solutions. In this role, you will lead a team in building high-performance platforms, intuitive workflows, and compelling visualizations that empower users to gain insights and protect their assets. Your contributions will support Mastercard and its customers by ensuring secure, scalable, and innovative technology solutions.
Role:
• Design, develop, document, and test software components and subsystems, ensuring maintainability and version control best practices.
• Interpret technical specifications to create scalable, future-ready designs and contribute to project planning.
• Conduct functional and performance testing, enhance existing solutions, and build new full-stack applications.
• Drive the end-to-end software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.
• Work closely with cross-functional teams, provide task estimations, and share expertise in emerging technologies and best practices.
• Lead and mentor a team of software engineers, fostering innovation, maintaining high-quality standards, and ensuring smooth development processes.
All About You:
• Proficiency in Full-Stack Development with extensive experience in both front-end (React, JavaScript, HTML, CSS) and back-end (Python, Node.js, Java, or Elixir) technologies, including API design, database management, and system integration.
• Experience with AWS and cloud technologies, Docker, Kubernetes, and modern data stores (PostgreSQL, MongoDB, Elasticsearch, Kafka).
• Familiarity with best practices in software development, including TDD/BDD, unit testing, CI/CD, and Agile methodologies.
• Solutions-oriented mindset with the ability to identify and implement the best-fit technologies to meet business needs.
• Proven experience in developing large-scale, secure web applications with a focus on performance and scalability.
• Strong communication and leadership skills, with the ability to collaborate in a dynamic, fast-paced environment.
• Demonstrated ability to thrive in an entrepreneurial setting while embodying Mastercard's core values: trust, partnership, initiative, and agility.
• Bachelor's degree in computer science, Software Engineering, or a related technical field, or equivalent practical experience.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Abide by Mastercard's security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
This advertiser has chosen not to accept applicants from your region.
2
Lead Software Engineer-(Python Expertise)
Toronto, Ontario
Mastercard
Posted 1 day ago
Job Viewed
Job Description
**Our Purpose**
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Lead Software Engineer-(Python Expertise)
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview:
Mastercard's RiskRecon team is looking for a Lead Software Engineer to drive the design, development, and delivery of cutting-edge risk assessment software solutions. In this role, you will lead a team in building high-performance platforms, intuitive workflows, and compelling visualizations that empower users to gain insights and protect their assets. Your contributions will support Mastercard and its customers by ensuring secure, scalable, and innovative technology solutions.
Role:
- Design, develop, document, and test software components and subsystems, ensuring maintainability and version control best practices.
- Interpret technical specifications to create scalable, future-ready designs and contribute to project planning.
- Conduct functional and performance testing, enhance existing solutions, and build new full-stack applications.
- Drive the end-to-end software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.
- Work closely with cross-functional teams, provide task estimations, and share expertise in emerging technologies and best practices.
- Lead and mentor a team of software engineers, fostering innovation, maintaining high-quality standards, and ensuring smooth development processes.
All About You:
- Proficiency in Full-Stack Development with extensive experience in both front-end (React, JavaScript, HTML, CSS) and back-end (Python, Node.js, Java, or Elixir) technologies, including API design, database management, and system integration.
- Experience with AWS and cloud technologies, Docker, Kubernetes, and modern data stores (PostgreSQL, MongoDB, Elasticsearch, Kafka).
- Familiarity with best practices in software development, including TDD/BDD, unit testing, CI/CD, and Agile methodologies.
- Solutions-oriented mindset with the ability to identify and implement the best-fit technologies to meet business needs.
- Proven experience in developing large-scale, secure web applications with a focus on performance and scalability.
- Strong communication and leadership skills, with the ability to collaborate in a dynamic, fast-paced environment.
- Demonstrated ability to thrive in an entrepreneurial setting while embodying Mastercard's core values: trust, partnership, initiative, and agility.
- Bachelor's degree in computer science, Software Engineering, or a related technical field, or equivalent practical experience.
#LI-FT1
#SecuritySolutions
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
**Corporate Security Responsibility**
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
+ Abide by Mastercard's security policies and practices;
+ Ensure the confidentiality and integrity of the information being accessed;
+ Report any suspected information security violation or breach, and
+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Lead Software Engineer-(Python Expertise)
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview:
Mastercard's RiskRecon team is looking for a Lead Software Engineer to drive the design, development, and delivery of cutting-edge risk assessment software solutions. In this role, you will lead a team in building high-performance platforms, intuitive workflows, and compelling visualizations that empower users to gain insights and protect their assets. Your contributions will support Mastercard and its customers by ensuring secure, scalable, and innovative technology solutions.
Role:
- Design, develop, document, and test software components and subsystems, ensuring maintainability and version control best practices.
- Interpret technical specifications to create scalable, future-ready designs and contribute to project planning.
- Conduct functional and performance testing, enhance existing solutions, and build new full-stack applications.
- Drive the end-to-end software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.
- Work closely with cross-functional teams, provide task estimations, and share expertise in emerging technologies and best practices.
- Lead and mentor a team of software engineers, fostering innovation, maintaining high-quality standards, and ensuring smooth development processes.
All About You:
- Proficiency in Full-Stack Development with extensive experience in both front-end (React, JavaScript, HTML, CSS) and back-end (Python, Node.js, Java, or Elixir) technologies, including API design, database management, and system integration.
- Experience with AWS and cloud technologies, Docker, Kubernetes, and modern data stores (PostgreSQL, MongoDB, Elasticsearch, Kafka).
- Familiarity with best practices in software development, including TDD/BDD, unit testing, CI/CD, and Agile methodologies.
- Solutions-oriented mindset with the ability to identify and implement the best-fit technologies to meet business needs.
- Proven experience in developing large-scale, secure web applications with a focus on performance and scalability.
- Strong communication and leadership skills, with the ability to collaborate in a dynamic, fast-paced environment.
- Demonstrated ability to thrive in an entrepreneurial setting while embodying Mastercard's core values: trust, partnership, initiative, and agility.
- Bachelor's degree in computer science, Software Engineering, or a related technical field, or equivalent practical experience.
#LI-FT1
#SecuritySolutions
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
**Corporate Security Responsibility**
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
+ Abide by Mastercard's security policies and practices;
+ Ensure the confidentiality and integrity of the information being accessed;
+ Report any suspected information security violation or breach, and
+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
This advertiser has chosen not to accept applicants from your region.
3
Lead Software Engineer-(Python Expertise)
M4W3E2 East York, Ontario
Mastercard
Posted 5 days ago
Job Viewed
Job Description
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Lead Software Engineer-(Python Expertise) Who is Mastercard?Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview:
Mastercard's RiskRecon team is looking for a Lead Software Engineer to drive the design, development, and delivery of cutting-edge risk assessment software solutions. In this role, you will lead a team in building high-performance platforms, intuitive workflows, and compelling visualizations that empower users to gain insights and protect their assets. Your contributions will support Mastercard and its customers by ensuring secure, scalable, and innovative technology solutions.
Role:
• Design, develop, document, and test software components and subsystems, ensuring maintainability and version control best practices.
• Interpret technical specifications to create scalable, future-ready designs and contribute to project planning.
• Conduct functional and performance testing, enhance existing solutions, and build new full-stack applications.
• Drive the end-to-end software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.
• Work closely with cross-functional teams, provide task estimations, and share expertise in emerging technologies and best practices.
• Lead and mentor a team of software engineers, fostering innovation, maintaining high-quality standards, and ensuring smooth development processes.
All About You:
• Proficiency in Full-Stack Development with extensive experience in both front-end (React, JavaScript, HTML, CSS) and back-end (Python, Node.js, Java, or Elixir) technologies, including API design, database management, and system integration.
• Experience with AWS and cloud technologies, Docker, Kubernetes, and modern data stores (PostgreSQL, MongoDB, Elasticsearch, Kafka).
• Familiarity with best practices in software development, including TDD/BDD, unit testing, CI/CD, and Agile methodologies.
• Solutions-oriented mindset with the ability to identify and implement the best-fit technologies to meet business needs.
• Proven experience in developing large-scale, secure web applications with a focus on performance and scalability.
• Strong communication and leadership skills, with the ability to collaborate in a dynamic, fast-paced environment.
• Demonstrated ability to thrive in an entrepreneurial setting while embodying Mastercard's core values: trust, partnership, initiative, and agility.
• Bachelor's degree in computer science, Software Engineering, or a related technical field, or equivalent practical experience.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Abide by Mastercard's security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
This advertiser has chosen not to accept applicants from your region.
4
Lead Software Engineer-(Python Expertise)
M4W3E2 East York, Ontario
Mastercard
Posted 1 day ago
Job Viewed
Job Description
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Lead Software Engineer-(Python Expertise) Who is Mastercard?Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview:
Mastercard's RiskRecon team is looking for a Lead Software Engineer to drive the design, development, and delivery of cutting-edge risk assessment software solutions. In this role, you will lead a team in building high-performance platforms, intuitive workflows, and compelling visualizations that empower users to gain insights and protect their assets. Your contributions will support Mastercard and its customers by ensuring secure, scalable, and innovative technology solutions.
Role:
• Design, develop, document, and test software components and subsystems, ensuring maintainability and version control best practices.
• Interpret technical specifications to create scalable, future-ready designs and contribute to project planning.
• Conduct functional and performance testing, enhance existing solutions, and build new full-stack applications.
• Drive the end-to-end software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.
• Work closely with cross-functional teams, provide task estimations, and share expertise in emerging technologies and best practices.
• Lead and mentor a team of software engineers, fostering innovation, maintaining high-quality standards, and ensuring smooth development processes.
All About You:
• Proficiency in Full-Stack Development with extensive experience in both front-end (React, JavaScript, HTML, CSS) and back-end (Python, Node.js, Java, or Elixir) technologies, including API design, database management, and system integration.
• Experience with AWS and cloud technologies, Docker, Kubernetes, and modern data stores (PostgreSQL, MongoDB, Elasticsearch, Kafka).
• Familiarity with best practices in software development, including TDD/BDD, unit testing, CI/CD, and Agile methodologies.
• Solutions-oriented mindset with the ability to identify and implement the best-fit technologies to meet business needs.
• Proven experience in developing large-scale, secure web applications with a focus on performance and scalability.
• Strong communication and leadership skills, with the ability to collaborate in a dynamic, fast-paced environment.
• Demonstrated ability to thrive in an entrepreneurial setting while embodying Mastercard's core values: trust, partnership, initiative, and agility.
• Bachelor's degree in computer science, Software Engineering, or a related technical field, or equivalent practical experience.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Abide by Mastercard's security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
This advertiser has chosen not to accept applicants from your region.
5
Lead Software Engineer-(Python Expertise)
M4W3E2 East York, Ontario
Mastercard
Posted today
Job Viewed
Job Description
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Software Engineer-(Python Expertise) Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all. Overview:Mastercard's RiskRecon team is looking for a Lead Software Engineer to drive the design, development, and delivery of cutting-edge risk assessment software solutions. In this role, you will lead a team in building high-performance platforms, intuitive workflows, and compelling visualizations that empower users to gain insights and protect their assets. Your contributions will support Mastercard and its customers by ensuring secure, scalable, and innovative technology solutions. Role:• Design, develop, document, and test software components and subsystems, ensuring maintainability and version control best practices.• Interpret technical specifications to create scalable, future-ready designs and contribute to project planning.• Conduct functional and performance testing, enhance existing solutions, and build new full-stack applications.• Drive the end-to-end software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.• Work closely with cross-functional teams, provide task estimations, and share expertise in emerging technologies and best practices.• Lead and mentor a team of software engineers, fostering innovation, maintaining high-quality standards, and ensuring smooth development processes. All About You:• Proficiency in Full-Stack Development with extensive experience in both front-end (React, JavaScript, HTML, CSS) and back-end (Python, Node.js, Java, or Elixir) technologies, including API design, database management, and system integration.• Experience with AWS and cloud technologies, Docker, Kubernetes, and modern data stores (PostgreSQL, MongoDB, Elasticsearch, Kafka).• Familiarity with best practices in software development, including TDD/BDD, unit testing, CI/CD, and Agile methodologies.• Solutions-oriented mindset with the ability to identify and implement the best-fit technologies to meet business needs.• Proven experience in developing large-scale, secure web applications with a focus on performance and scalability.• Strong communication and leadership skills, with the ability to collaborate in a dynamic, fast-paced environment.• Demonstrated ability to thrive in an entrepreneurial setting while embodying Mastercard's core values: trust, partnership, initiative, and agility.• Bachelor's degree in computer science, Software Engineering, or a related technical field, or equivalent practical experience.Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly. Corporate Security ResponsibilityAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:Abide by Mastercard's security policies and practices;Ensure the confidentiality and integrity of the information being accessed;Report any suspected information security violation or breach, andComplete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
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Software Development Engineer
Vancouver, British Columbia
Amazon
Posted 1 day ago
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Description
Our team is working to modernize and optimize critical parts of S3's data-path. We have launched a re-write of a core library running at S3 scale and are now leveraging that as a foundational building block for S3 and exploring opportunities in AWS more broadly.
Managing trillions of objects in storage, retrieving them in milliseconds, building software that deploys to tens of thousands of hosts, designed for 99.999% durability. These are just a few of the numbers that give you a sense of the scale of the exciting problems you will find every day working on Amazon Simple Storage Service (S3). Amazon S3 provides a simple web services interface that can be used to store and retrieve any amount of data at any time, from anywhere on the web. It gives any developer access to the same highly scalable, reliable, secure, fast, inexpensive infrastructure that Amazon uses to run its own global network of web sites.
Amazon S3 powers businesses across the globe that make the lives of consumers better daily. Whether its electronic content delivered to your home, technology that betters your remote working experience, allows you to plan travel to exotic places or simply get stuff delivered to your home. As a Software Development Engineer in S3, you get to deliver these capabilities and delight our customers through teams of talented engineers and leaders.
We are looking for software engineers to lead innovation in our Amazon S3 API Experience organization and help us build the next generation of highly scalable, fault tolerant services. We seek smart, passionate people to help us define this exciting new technology.
Responsibilities include:
- Design, implementation, deployment and maintenance of innovative software solutions to deliver new features in performance, cost, high availability
- Use software engineering best practices to ensure the standard of quality of all team deliverables
- Build and implement high quality distributed system software.
- Work in an agile environment, prioritizing most important and impactful projects
- Collaborate and communicate in team settings
- Mentor team members as well as build relationships with business and technical leadership
Our team puts high value on work/life balance. We recognize that the circumstances of our team members vary, and we balance work across the team so that we're all able to maintain high standards on behalf of our customers, as well as allow for rich and happy personal lives. We maintain a regular on-call rotation across our teams with engineers and managers all taking part to resolve the inevitable issues that arise. We don't like getting paged outside of work hours so we work to ensure our systems are fault tolerant. When we do get paged we work together to resolve root cause so that we don't get paged for the same issue twice,
Utility Computing (UC)
AWS Utility Computing (UC) provides product innovations - from foundational services such as Amazon's Simple
Storage Service (S3) and Amazon Elastic Compute Cloud (EC2), to consistently released new product innovations that
continue to set AWS's services and features apart in the industry. As a member of the UC organization, you'll support
the development and management of Compute, Database, Storage, Internet of Things (Iot), Platform, and Productivity
Apps services in AWS, including support for customers who require specialized security solutions for their cloud services.
A day in the life
Upon joining S3, every employee is paired with a peer buddy who will help you to quickly come up to speed in understanding the technology we're building, the tools we use and the business problems we're trying to solve. We hire exceptional people and we recognize the importance of coaching others. We have a formal mentor search application that lets you find a mentor that works best for you based on location, job family, and job level.
About the team
Diverse Experiences
Amazon values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job
description, we encourage candidates to apply. If your career is just starting, hasn't followed a traditional path, or
includes alternative experiences, don't let it stop you from applying.
Why AWS
Amazon Web Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered
cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500
companies trust our robust suite of products and services to power their businesses.
Work/Life Balance
We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is
why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home,
there's nothing we can't achieve.
Inclusive Team Culture
Here at AWS, it's in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion
that empower us to be proud of our differences. Ongoing events and learning experiences, including our Conversations
on Race and Ethnicity (CORE) and AmazeCon conferences, inspire us to never stop embracing our
uniqueness.
Mentorship and Career Growth
We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find
endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-
rounded professional.
Basic Qualifications
- 3+ years of non-internship professional software development experience
- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience programming with at least one software programming language
Preferred Qualifications
- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's degree in computer science or equivalent
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.
The base salary for this position ranges from $114,800/year up to $191,800/year. Salary is based on a number of factors and may vary depending on job-related knowledge, skills, and experience. Amazon is a total compensation company. Dependent on the position offered, equity, sign-on payments, and other forms of compensation may be provided as part of a total compensation package, in addition to a full range of medical, financial, and/or other benefits. Applicants should apply via our internal or external career site.
Our team is working to modernize and optimize critical parts of S3's data-path. We have launched a re-write of a core library running at S3 scale and are now leveraging that as a foundational building block for S3 and exploring opportunities in AWS more broadly.
Managing trillions of objects in storage, retrieving them in milliseconds, building software that deploys to tens of thousands of hosts, designed for 99.999% durability. These are just a few of the numbers that give you a sense of the scale of the exciting problems you will find every day working on Amazon Simple Storage Service (S3). Amazon S3 provides a simple web services interface that can be used to store and retrieve any amount of data at any time, from anywhere on the web. It gives any developer access to the same highly scalable, reliable, secure, fast, inexpensive infrastructure that Amazon uses to run its own global network of web sites.
Amazon S3 powers businesses across the globe that make the lives of consumers better daily. Whether its electronic content delivered to your home, technology that betters your remote working experience, allows you to plan travel to exotic places or simply get stuff delivered to your home. As a Software Development Engineer in S3, you get to deliver these capabilities and delight our customers through teams of talented engineers and leaders.
We are looking for software engineers to lead innovation in our Amazon S3 API Experience organization and help us build the next generation of highly scalable, fault tolerant services. We seek smart, passionate people to help us define this exciting new technology.
Responsibilities include:
- Design, implementation, deployment and maintenance of innovative software solutions to deliver new features in performance, cost, high availability
- Use software engineering best practices to ensure the standard of quality of all team deliverables
- Build and implement high quality distributed system software.
- Work in an agile environment, prioritizing most important and impactful projects
- Collaborate and communicate in team settings
- Mentor team members as well as build relationships with business and technical leadership
Our team puts high value on work/life balance. We recognize that the circumstances of our team members vary, and we balance work across the team so that we're all able to maintain high standards on behalf of our customers, as well as allow for rich and happy personal lives. We maintain a regular on-call rotation across our teams with engineers and managers all taking part to resolve the inevitable issues that arise. We don't like getting paged outside of work hours so we work to ensure our systems are fault tolerant. When we do get paged we work together to resolve root cause so that we don't get paged for the same issue twice,
Utility Computing (UC)
AWS Utility Computing (UC) provides product innovations - from foundational services such as Amazon's Simple
Storage Service (S3) and Amazon Elastic Compute Cloud (EC2), to consistently released new product innovations that
continue to set AWS's services and features apart in the industry. As a member of the UC organization, you'll support
the development and management of Compute, Database, Storage, Internet of Things (Iot), Platform, and Productivity
Apps services in AWS, including support for customers who require specialized security solutions for their cloud services.
A day in the life
Upon joining S3, every employee is paired with a peer buddy who will help you to quickly come up to speed in understanding the technology we're building, the tools we use and the business problems we're trying to solve. We hire exceptional people and we recognize the importance of coaching others. We have a formal mentor search application that lets you find a mentor that works best for you based on location, job family, and job level.
About the team
Diverse Experiences
Amazon values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job
description, we encourage candidates to apply. If your career is just starting, hasn't followed a traditional path, or
includes alternative experiences, don't let it stop you from applying.
Why AWS
Amazon Web Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered
cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500
companies trust our robust suite of products and services to power their businesses.
Work/Life Balance
We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is
why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home,
there's nothing we can't achieve.
Inclusive Team Culture
Here at AWS, it's in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion
that empower us to be proud of our differences. Ongoing events and learning experiences, including our Conversations
on Race and Ethnicity (CORE) and AmazeCon conferences, inspire us to never stop embracing our
uniqueness.
Mentorship and Career Growth
We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find
endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-
rounded professional.
Basic Qualifications
- 3+ years of non-internship professional software development experience
- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience programming with at least one software programming language
Preferred Qualifications
- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's degree in computer science or equivalent
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.
The base salary for this position ranges from $114,800/year up to $191,800/year. Salary is based on a number of factors and may vary depending on job-related knowledge, skills, and experience. Amazon is a total compensation company. Dependent on the position offered, equity, sign-on payments, and other forms of compensation may be provided as part of a total compensation package, in addition to a full range of medical, financial, and/or other benefits. Applicants should apply via our internal or external career site.
This advertiser has chosen not to accept applicants from your region.
7