5 Crypto & Blockchain jobs in Canada

Job Description

Blockchain Engineer - Protocol & Infrastructure

Location: Remote / Hybrid / On-site

About the Role:
We are seeking a Blockchain Engineer to design and implement the core infrastructure for next-generation blockchain networks. This role involves deep protocol development, cryptographic security, and decentralized system architecture.

Responsibilities:

• Develop Layer 1 and Layer 2 blockchain infrastructure.

• Improve consensus mechanisms and network scalability.

• Implement cryptographic algorithms and security enhancements.

• Work with cross-functional teams to drive blockchain adoption.

Requirements:

• Proficiency in Rust, Go, or C++.

• Deep understanding of consensus algorithms (PoS, PoW, DAGs, etc.).

• Experience with cryptographic techniques (zero-knowledge proofs, elliptic curve cryptography).

• Previous experience with blockchain frameworks (Substrate, Cosmos SDK, Tendermint).

Job Description

NDAX is Canada's fastest growing Cryptocurrency exchange. Currently we are looking to hire some fresh and hungry talent to join our blockchain division. If you are a blockchain engineer we need it to do the following.

Requirements

• Develop & test smart contracts and programming efforts on Ethereum.

• Work with other engineers in an agile environment to develop new solutions to old problems with blockchain technologies

• Design & optimize scalable and robust services that will run at scale

• Own feature implementations and maintain a continuous integration pipeline

• Help improve our code quality through writing unit tests, automation and performing code reviews

• Monitor and manage cloud servers and other infrastructures/tools Experience / Skills desired:

• Professional experience as software engineer with at least a year of experience with Solidity programming

• Experience in one or more of the following current blockchain development libraries and frameworks: Truffle, Embark, Web3.js, ethers.js, OpenZeppelin, Dapphub

• Strong emphasis on security and understanding of all potential exploits pertaining to Solidity

• Experience in one or more of the following web technologies: Node.js, Go, Python, React, Angular, Redux, VueJS, Bootstrap, Docker, CoreOS, RocksDB

• Strong understanding of smart contracts, cryptography, Ethereum and Javascript • Familiarity with Github, DevOps and cloud server technology such as DigitalOcean, AWS, or Azure

• Bachelor’s Degree in Computer Science or Computer Engineering and/or equivalent experience

• Juniors and/or Senior pro's are being considered. Ultimately, smarts and passion are the core criteria for success with this team

Benefits

you will have the opportunity to enroll in stock option plan with an early stage company

you will receive health care benefits after 3 months of employment

free gym

huge learning experience

Job Description

Career Renew is recruiting for one of its clients a Full Stack Engineer - Blockchain - this is a fully-remote role for US/Canada based candidates.

We are a VC-backed on-chain financial infrastructure company on a mission to upgrade global financial markets through 24/7 instant settlement. We're building the next generation of financial rails by bridging traditional finance (TradFi) and decentralised finance (DeFi) in a transparent, efficient, and highly scalable way.

Our first product is Multiliquid — an institutional-grade smart contract protocol that enables deep interoperability and liquidity across tokenised financial assets and stablecoins. As the flagship product, Multiliquid sets the foundation for our broader vision: replatforming the entire financial system on 10x better infrastructure, powered by blockchain.

We’re currently raising a $4M seed round to expand the team and scale the next phase of growth.

We are led by a 3x founder who previously co-founded Allica, a UK-based bank and one of Europe’s fastest-growing companies.

Role Overview

We’re looking for a Full-Stack Engineer to join our core engineering team. In this hands-on role, you’ll build and scale both front-end and back-end systems to facilitate access to and usability of the Multiliquid protocol. You’ll develop our API, user-facing applications, integrate with smart contract infrastructure, and ensure seamless, secure interaction between a wide variety of users, applications and blockchain-based systems. This is an opportunity to help shape the digital interface of institutional DeFi, building products that abstract away complexity and deliver intuitive usability and scalable experiences to our users.

You will work on a small, rigorously selected, senior team of engineers. You will be responsible for collaborating closely with product, compliance, and business stakeholders. This is a high-impact role requiring deep technical expertise, vision, strategic thinking, strong leadership skills, and a passion for delivering best-in-class DeFi solutions.

Key Responsibilities

Full-Stack Development

Build and maintain web applications that interact with smart contracts and blockchain infrastructure.

Design intuitive, performant UIs and integrate them with secure, efficient back-end services.

• Develop APIs, data models, and business logic that support institutional-grade use cases.

Cross-Functional Collaboration

Collaborate closely with blockchain engineers and product stakeholders to translate protocol logic into usable interfaces and tools.

• Participate in design sessions, sprint planning, and code reviews to align execution with vision.

Scalability & Reliability

Optimize web applications for performance, availability, and responsiveness under heavy institutional traffic.

• Ensure seamless, low-latency interaction between front-end systems and onchain

protocols.

• Contribute to a scalable, secure back-end infrastructure supporting liquidity flows across chains.

Security & Compliance

Implement robust authentication and access control for institutional-grade users.

Follow security best practices for data protection and transaction integrity across the stack.

• Proactively identify and address vulnerabilities and edge cases in both UI and API

layers.

Hands-On Engineering

• Actively write and deploy code across front-end and back-end systems.

• Lead the development of core features, dashboards, and admin tools for managing

external-facing and internal workflows.

• Prototype, build, test, iterate and troubleshoot rapidly in a fast-moving environment.

Required Qualifications

Experience

5+years of experience building production-ready full-stack applications.

Strong proficiency in modern front-end frameworks (React preferred; Vue or Angular

also welcome).

Experience with back-end technologies such as Node.js, Express, Python, or similar.

Familiarity with blockchain integrations (e.g., web3.js, ethers.js) is a major plus.

Technical Skills

Proficiency with RESTful APIs, GraphQL, and smart contract integrations.

Experience with SQL and/or NoSQL databases (e.g., PostgreSQL, MongoDB).

Familiarity with cloud platforms (AWS, GCP) and CI/CD pipelines.

• Solid knowledge of modern JavaScript (ES6+), HTML, and CSS.

Soft Skills

Solid knowledge of modern JavaScript (ES6+), HTML, and CSS.

Maniacal attention to detail and excellent ability to receive and internalize feedback.

Clear communicator able to work with both technical and non-technical teams.

Strong problem-solving abilities and comfort navigating complex systems.

Adaptable and entrepreneurial mindset suited to early-stage environments.

• Desire to contribute professionally and personally as a member of a dynamic,

collaborative, high-performing team.

Why Join Us?

• Impact: Help shape the user experience and interface of the future liquidity layer for tokenized finance.

• Innovation: Work on real-world blockchain integrations powering institutional-grade capital flows.

• Learning: Expand your understanding of DeFi, tokenized assets, and decentralized

• infrastructure.

• Team: Join a collaborative, mission-driven team backed by top investors.

• Upside: Competitive salary, equity upside, and the chance to be an early builder of a transformative protocol.