408 Data Scientists jobs in Canada

Big Data Engineer
Mississauga, Ontario
**Hybrid**
Contract
$70/hr - $72.5/hr
Grow your career as a Big Data Engineer with an innovative global bank in Mississauga, Ontario. Contract role with strong possibility of extension or conversion. Will require working a hybrid schedule 3 days onsite per week.
Join one of the world's most renowned global banks and trusted brand with over 200 years of continuously evolving financial services worldwide. You will work alongside some of the smartest minds in the industry who are excited to share their knowledge and to learn from you.
Contract Duration: 11+ Months
**Required Skills & Experience**
+ 10+ years of Big Data development experience.
+ Strong solid understanding of the Big Data architecture and the ability to trouble shoot performance and/or development issues on Hadoop (Cloudera preferably)
+ Hands-on experience working with Hive, Impala, Kafka, HBase, Spark for data curation/conformance related work.
+ Strong proficiency in Spark for development work related to curation/conformance.
+ Strong Scala development (with previous Java background) preferred.
+ Experience with Spark/Kafka or equivalent streaming/batch processing and event-based messaging.
+ Experience working in a Continuous Integration and Continuous Delivery environment and familiarity with tools like Jenkins, TeamCity, SonarQube, OpenShift, ECS, or Kubernetes.
+ Proficient in industry-standard best practices such as Design Patterns, Coding Standards, Coding modularity, and Prototyping.
+ Experience with data visualization tools and techniques for presenting data insights effectively.
+ Agile development experience working in agile and scaled agile teams.
+ Strong data analysis skills and the ability to slice and dice the data as needed for business reporting.
+ Relational SQL (Oracle, SQL Server), NoSQL (MongoDB) and Cache (Couchbase) database integration and data distribution principles experience
+ Leadership & Mentorship: Ability to guide and mentor junior developers, fostering a collaborative team environment and promoting professional growth.
+ Strong communication skills, both written and verbal, with the ability to explain complex technical concepts to both technical and non-technical audiences.
**What You Will Be Doing**
+ Utilize in-depth knowledge and hands-on skills across multiple Applications Development areas to provide technical oversight across systems and applications
+ Will work very closely with and manage the work of a team of data engineers working on a Big Data Platform.
+ Manage one or more Applications Development teams in an effort to accomplish established goals
+ Review/analyze/develop proposed technical solutions for projects
+ Contribute to formulation of strategies for applications development and other functional areas
+ Develop comprehensive knowledge of how areas of business integrate to accomplish business goals
+ Provide evaluative judgment based on analysis of factual data in complicated and unique situations
+ Impact the Applications Development area through monitoring delivery of end results, participate in budget management, and handling day-to-day staff management issues, including resource management and allocation of work within the team/project
+ Ensure essential procedures are followed and contribute to defining standards negotiating with external parties when necessary
Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP's Employment Accommodation policy. Applicants need to make their needs known in advance.
**Posted by:** Melissa Klein
**Specialization:**
+ Data Engineering

Experience: 5+ Years

Location: Downtown, Toronto (Hybrid- 4 days a week)

Job Description:

We are seeking a highly skilled and experienced Big Data Developer with a strong background in designing, developing, and optimizing data applications using modern big data technologies. The ideal candidate will have hands-on experience with Java/Scala , Apache Spark , and Cloudera/HDP , along with a good understanding of cloud-native development and DevOps practices .

Key Responsibilities:

• Design, develop, and optimize Big Data applications using Java/Scala and Apache Spark .
• Work on data ingestion, transformation, and analysis workflows on Cloudera/HDP platforms.
• Write and troubleshoot complex SQL queries to validate business logic and data transformations.
• Develop and deploy cloud-native applications on AWS, Azure, or OpenShift (OCP) using Docker and Kubernetes .
• Collaborate with cross-functional teams in an Agile environment to deliver high-quality solutions.
• Participate in code reviews, testing, and documentation processes.
• Utilize DevOps tools including Jenkins , Git , and JIRA to streamline development and deployment pipelines.

Required Skills:

• 5+ years of experience in Big Data development
• Proficiency in Java or Scala
• Strong expertise with Apache Spark
• Experience working on Cloudera or HDP (Hortonworks Data Platform)
• Advanced SQL skills; ability to write and analyze complex queries
• Working knowledge of AWS/Azure/OCP , Docker , and Kubernetes
• Familiarity with DevOps tools: Jenkins, Git, JIRA
• Excellent problem-solving and communication skills
• Ability to thrive in a fast-paced, Agile environment

Preferred Qualifications:

• Experience in data pipeline development for large-scale data processing
• Exposure to CI/CD pipelines and automation
• Familiarity with security and compliance practices in cloud environments

Experience: 5+ Years

Location: Downtown, Toronto (Hybrid- 4 days a week)

Job Description:

We are seeking a highly skilled and experienced Big Data Developer with a strong background in designing, developing, and optimizing data applications using modern big data technologies. The ideal candidate will have hands-on experience with Java/Scala , Apache Spark , and Cloudera/HDP , along with a good understanding of cloud-native development and DevOps practices .

Key Responsibilities:

• Design, develop, and optimize Big Data applications using Java/Scala and Apache Spark .
• Work on data ingestion, transformation, and analysis workflows on Cloudera/HDP platforms.
• Write and troubleshoot complex SQL queries to validate business logic and data transformations.
• Develop and deploy cloud-native applications on AWS, Azure, or OpenShift (OCP) using Docker and Kubernetes .
• Collaborate with cross-functional teams in an Agile environment to deliver high-quality solutions.
• Participate in code reviews, testing, and documentation processes.
• Utilize DevOps tools including Jenkins , Git , and JIRA to streamline development and deployment pipelines.

Required Skills:

• 5+ years of experience in Big Data development
• Proficiency in Java or Scala
• Strong expertise with Apache Spark
• Experience working on Cloudera or HDP (Hortonworks Data Platform)
• Advanced SQL skills; ability to write and analyze complex queries
• Working knowledge of AWS/Azure/OCP , Docker , and Kubernetes
• Familiarity with DevOps tools: Jenkins, Git, JIRA
• Excellent problem-solving and communication skills
• Ability to thrive in a fast-paced, Agile environment

Preferred Qualifications:

• Experience in data pipeline development for large-scale data processing
• Exposure to CI/CD pipelines and automation
• Familiarity with security and compliance practices in cloud environments

About the Role:
+ We are looking for a Senior Data Architectto build and maintain - Platform Modernization, TransformationPrograms
+ You'll be part of a Core Accounts Data team that's responsible for the full software development life cycle, upholding best-in-class engineering standards and modern methodologies.
+ This role involves writing code, collaborating with other developers,understanding business requirements, developing technical solutions, collaborating with other business partners, breaking down acceptance criteria to understand team backlog deliverables, complexities, and risks, and contributing effectively to an agile team.
Key Responsibilities:
+ Design, develop, and maintain robust, scalable, and high-performance applications
+ Partner with architects, product owners, and cross-functional teams to design scalable and distributed system
+ Follow best-in-class Big Data/ETL Applications design standards, security considerations, scalability, maintainability and resource utilization aspects
+ Ensure high levels of unit test coverage, DevOps principles and a culture of continuous delivery and improvement
+ Actively contribute to hands-on coding, code reviews, and refactoring to maintain high engineering standards
+ Ability of analyzing the results across the environment and finding potential or existing errors in code/builds
+ Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.
+ Mentor junior engineers and foster a culture of engineering excellence and continuous learning.
Skills and Qualifications:
+ 10+ years of experience
+ Excellent Understanding of Bigdata/ETL ecosystem
+ Proficiency in Apache Spark development with Scala
+ Experience in building Spark Streaming and Batch/Live streaming applications
+ Strong experience in creating applications for Big Data and other Data & Analytics technologies (Spark, Scala, Hadoop, Hive etc.)
+ Ability to analyze Spark job performance in Spark UI and apply required performance tuning
+ Experience of working with Linux Scripting, Kafka, Git, Maven, SSH
+ Well versed with creating and debugging Scala code in IntelliJ IDEA
+ Good problem solving skills
---
**Job Family Group:**
Technology
---
**Job Family:**
Applications Development
---
**Time Type:**
Full time
---
**Primary Location Full Time Salary Range:**
$94,300.00 - $141,500.00
---
**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 part of the Citi Services Technology team, the Senior Big Data Developer is a senior level position responsible for the development of the team's strategic Big Data implementations, including maintaining and optimizing technologies used on-premises and adopting/extending services on public cloud for pioneer applications. The overall objective of this role is to drive applications systems analysis and programming activities.**
**Responsibilities:**
**Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements**
**Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards**
**Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint**
**Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation**
**Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals**
**Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions**
**Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary**
**Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.**
**Qualifications:**
**6-10 years of relevant experience in Apps Development or systems analysis role, with Big Data technologies, such as Spark (Scala/Python), Kafka streaming, Hadoop, HDFS, and solid understanding of Big Data architecture**
**Good understanding on data file formats, Impala, Hadoop, Parquet, Avro, Iceberg, etc.**
**Extensive experience with web services with Kubernetes, and Version control/CI/CD processes with git, Jenkins, harness, etc.**
**Public cloud experience is preferred, preferably AWS.**
**Strong data analysis skills and the ability to slice and dice the data as needed for business reporting**
**Experience working in an agile environment with a fast paced changing requirements.**
**Excellent planning and organizational skills**
**Ability to adjust priorities quickly as circumstances dictate**
**Demonstrated leadership and project management skills**
**Consistently demonstrates clear and concise written and verbal communication**
**Education:**
**Bachelor's degree/University degree or equivalent experience**
**Master's degree preferred**
**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
---
**Primary Location Full Time Salary Range:**
$120,800.00 - $170,800.00
---
**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.

**Work Location:**
Toronto, Ontario, Canada
**Hours:**
37.5
**Line of Business:**
Technology Solutions
**Pay Details:**
$126,100 - $164,100 CAD
This role is eligible for a discretionary variable compensation award that considers business and individual performance.
TD is committed to providing fair and equitable compensation opportunities to all colleagues. Growth opportunities and skill development are defining features of the colleague experience at TD. Our compensation policies and practices have been designed to allow colleagues to progress through the salary range over time as they progress in their role. The base pay actually offered may vary based upon the candidate's skills and experience, job-related knowledge, geographic location, and other specific business and organizational needs.
As a candidate, you are encouraged to ask compensation related questions and have an open dialogue with your recruiter who can provide you more specific details for this role.
**Job Description:**
**Department Overview**
TD Securities offers a wide range of capital markets products and services to corporate, government, and institutional clients who choose us for our innovation, execution, and experience.
With more than 6,500 professionals operating out of 40 cities across the globe, we help clients meet their needs today and prepare for tomorrow. Our services include underwriting and distributing new issues, providing trusted advice and industry-leading insight, extending access to global markets, and delivering integrated transaction banking solutions.
We are growth-oriented, people-focused, and community-minded. As a team, we work to deliver value for our clients every day.
**Job Description**
We are looking for an experienced **Senior Big Data Engineer (Engineer II)** that will work on critical initiatives at TD Securities -- the design and implementation of the Trading Risk Warehouse platform. The successful candidate will be responsible for the design and development of a software solution that will be used by Risk Analysts, Front Office Traders, and Senior Executives. This is a unique opportunity to work on cutting-edge technologies to solve problems of scale and speed. Responsibility of this position includes the following:
**Responsibilities**
+ Implement high quality and efficient codes to leverage distributed computing on Hadoop platform.
+ Ability to build new and modify existing components based on requirements for web UI, RestAPI and data pipeline (ETL).
+ Perform unit testing & integration testing.
+ Find opportunities to optimize current codes.
+ Ability to pinpoint root cause and resolve production issues.
+ Leverage best practices in continuous integration and delivery.
+ Drive transformation by continuously looking for ways to improve existing processes, architecture and software quality.
+ Explore new capabilities and technologies to drive innovation.
**Desired Skillsets:**
+ Java/JEE
+ Spark/Scala
+ Big Data/Hadoop/Hive
+ Spring Boot/Angular/RestAPI
+ Cassandra/No SQL database
+ MS SQL Server
+ Git
+ Linux
**Technical Skills**
+ 7+ years of Java/JEE experience
+ 5+ years of Big Data Technologies (Hadoop, Spark/Scala, Hive)
+ Experience in the Spring tech stack and building microservices using Spring Boot.
+ Experience in Linux environment.
+ Experience in designing and integrating with REST API.
+ Experience working with messaging technologies.
+ Experience with RDBMS, demonstrable fluency in SQL and any non-relational db such as Cassandra (is preferred).
+ Experience of Git, CI/CD toolset (Maven), Jenkins, working within an Agile environment.
+ Strong understanding of design patterns and coding practices.
+ Experience working with scalable and low latency systems.
+ A passion for simplifying and automating work, for making things better, for being efficient and helping others.
**Business Skills**
+ Good communication skills. Experience in collaborating efficiently within a global team
+ Demonstrable experience working in a fast-paced environment, working with PMs and our business sponsors
+ Nice to have - Knowledge of capital markets products including derivatives and cross-asset products
+ Nice to have - Hands-on experience with market risk and/or PnL (profit and loss).
**Additonal Information**
**Join in on what others in TD Technology Solutions are doing:**
+ Inspire a positive work environment and help champion quality, innovation, teamwork and service to the business.
+ Learn voraciously, stretch your thinking, share your knowledge and educate others.
+ Communicate and collaborate with both technical and non-technical professionals.
+ Cultivate winning relationships by building trust with business and technology partners.
+ Share our commitment to productivity, effectiveness and operational efficiency.
#LI-Tech
**Who We Are:**
TD Securities offers a wide range of capital markets products and services to corporate, government, and institutional clients who choose us for our innovation, execution, and experience. With more than 6,500 professionals operating out of 40 cities across the globe, we help clients meet their needs today and prepare for tomorrow. Our services include underwriting and distributing new issues, providing trusted advice and industry-leading insight, extending access to global markets, and delivering integrated transaction banking solutions. In 2023, we acquired Cowen Inc., offering our clients access to a premier U.S. equities business and highly-diverse equity research franchise, while growing our strong, diversified investment bank. We are growth-oriented, people-focused, and community-minded. As a team, we work to deliver value for our clients every day.
**Our Total Rewards Package**
Our Total Rewards package reflects the investments we make in our colleagues to help them and their families achieve their financial, physical, and mental well-being goals. Total Rewards at TD includes a base salary, variable compensation, and several other key plans such as health and well-being benefits, savings and retirement programs, paid time off, banking benefits and discounts, career development, and reward and recognition programs. Learn more ( Information:**
We're delighted that you're considering building a career with TD. Through regular development conversations, training programs, and a competitive benefits plan, we're committed to providing the support our colleagues need to thrive both at work and at home.
Please be advised that this job opportunity is subject to provincial regulation for employment purposes. It is imperative to acknowledge that each province or territory within the jurisdiction of Canada may have its own set of regulations, requirements.
**Colleague Development**
If you're interested in a specific career path or are looking to build certain skills, we want to help you succeed. You'll have regular career, development, and performance conversations with your manager, as well as access to an online learning platform and a variety of mentoring programs to help you unlock future opportunities. Whether you have a passion for helping customers and want to expand your experience, or you want to coach and inspire your colleagues, there are many different career paths within our organization at TD - and we're committed to helping you identify opportunities that support your goals.
**Training & Onboarding**
We will provide training and onboarding sessions to ensure that you've got everything you need to succeed in your new role.
**Interview Process**
We'll reach out to candidates of interest to schedule an interview. We do our best to communicate outcomes to all applicants by email or phone call.
**Accommodation**
Your accessibility is important to us. Please let us know if you'd like accommodations (including accessible meeting rooms, captioning for virtual interviews, etc.) to help us remove barriers so that you can participate throughout the interview process.
We look forward to hearing from you!
**Language Requirement (Quebec only):**
Sans Objet
Federal law prohibits job discrimination based on race, color, sex, sexual orientation, gender identity, national origin, religion, age, equal pay, disability and genetic information.