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Smart Contract Engineer Jobs in Quebec (NOW HIRING)

ABB

Hybrid This role is contributing to the Smart Power and Smart Building division in Canada. You will ... Work with PMM or Engineering to provide alternate materials if possible. * Work as a project ...

MaintainX

Senior Solutions Consultant

Montreal, QC · Remote

CA$150/day

Provide the necessary tools and processes to accelerate deals, execute contracts, and improve sales ... Personality traits: empathic, positive, passionate, creative, smart, high integrity, startup ...

Optel

Field Technician

Quebec, QC · On-site

OPTEL also adapts its technologies to a variety of sectors, from healthcare to smart manufacturing ... Conduct engineering visits when required; Produce detailed service reports; Identify potential ...

Optel

Field Technician

Quebec, QC · On-site

OPTEL also adapts its technologies to a variety of sectors, from healthcare to smart manufacturing ... Conduct engineering visits when required; * Produce detailed service reports; * Identify potential ...

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Smart Contract Engineer information

What are the key skills and qualifications needed to thrive as a Smart Contract Engineer, and why are they important?

To thrive as a Smart Contract Engineer, you need strong proficiency in blockchain fundamentals, programming languages like Solidity or Vyper, and a solid understanding of cryptographic principles, usually backed by a degree in computer science or related experience. Familiarity with blockchain development frameworks (e.g., Truffle, Hardhat), version control (Git), and security auditing tools is essential. Attention to detail, problem-solving abilities, and effective communication are crucial soft skills for this role. These skills ensure the development of secure, efficient, and reliable smart contracts that underpin decentralized applications and financial systems.

What are some common challenges Smart Contract Engineers face when ensuring contract security?

Smart Contract Engineers often encounter challenges related to identifying and mitigating vulnerabilities such as reentrancy attacks, integer overflows, and unauthorized access. Since smart contracts are immutable once deployed, engineers must rigorously test and audit their code to prevent costly errors or exploits. Collaborating with auditors, using established security frameworks, and staying updated on the latest security threats are essential practices to maintain robust and secure smart contracts.

What is a Smart Contract Engineer?

A Smart Contract Engineer is a software developer who specializes in designing, developing, testing, and deploying smart contracts on blockchain platforms such as Ethereum. These professionals write code—often in languages like Solidity or Vyper—that runs autonomously on the blockchain and governs transactions or agreements without the need for intermediaries. They also focus on security, auditing, and optimizing smart contract performance to prevent vulnerabilities. Smart Contract Engineers typically collaborate with blockchain architects, front-end developers, and project managers to build decentralized applications (dApps).

What is the difference between Smart Contract Engineer vs Blockchain Developer?

AspectSmart Contract EngineerBlockchain Developer
CredentialsKnowledge of blockchain platforms, Solidity, cryptographyBroader programming skills, blockchain fundamentals
Work EnvironmentFocus on smart contract coding, testing, deploymentDeveloping blockchain applications, protocols
Industry UsagePrimarily in DeFi, NFT, and dApp projectsWide range including wallets, exchanges, dApps
Search IntentComparing smart contract roles, coding specificsBroader blockchain development roles

While both roles work within the blockchain industry, a Smart Contract Engineer specializes in designing, coding, and deploying smart contracts on blockchain platforms. A Blockchain Developer has a broader scope, including developing entire blockchain applications and protocols. The Smart Contract Engineer's focus is more technical and contract-specific, whereas the Blockchain Developer's role encompasses a wider range of blockchain solutions.

What are popular job titles related to Smart Contract Engineer jobs in Quebec? For Smart Contract Engineer jobs in Quebec, the most frequently searched job titles are:
What job categories do people searching Smart Contract Engineer jobs in Quebec look for? The top searched job categories for Smart Contract Engineer jobs in Quebec are:
What cities in Quebec are hiring for Smart Contract Engineer jobs? Cities in Quebec with the most Smart Contract Engineer job openings:
Smart Contract Engineer jobs near you
Infographic showing various Smart Contract Engineer job openings in Quebec as of May 2026, with employment types broken down into 1% As Needed, 67% Full Time, 28% Part Time, 1% Temporary, and 3% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution.

Fullstack Developer (node.js / React)

Catallaxy

Montreal, QC • On-site

Full-time

Posted yesterday

Job description

Catallaxy is looking for a talented full-stack developer (node.js) able to quickly develop, deliver and support clean, scalable and high quality code for blockchain applications.

  • You will work closely with the head of product
  • You will have the opportunity to grow inside the organization

Job Location: Montreal, Quebec, Canada

Job type: Full time

Responsibilities:

  • Design, develop, deliver, and support web-based applications and APIs
  • Write maintainable code with extensive tests and version control
  • Ensure the scalability and quality of all code and products
  • Build applications that focus on great user experience
  • Create automated testing to quickly and confidently ship code
  • Assist with product documentation, unit testing and ensuring overall product quality
  • Participation in daily scrums, design discussions, code reviews and code analysis
  • Help choose and define the tech stack and tools

Requirements

  • 3+ years’ experience in software development
  • 2+ years with JavaScript technologies: Node.js and React/Angular or similar
  • Experience building scalable web applications using modern frameworks (React/ Angular, etc.) and tools (npm, webpack, etc.)
  • Good understanding of both front end (JavaScript, HTML, CSS) and server side (Node.js, express) components
  • Experience with API design and development (REST, JSON, RESTFull services).
  • CSS preprocessors like Sass or LESS
  • Front-end (CSS) frameworks like Foundation or Bootstrap
  • JS-based build tools like Grunt, Gulp, and Bower
  • Experience using test-driven development and writing accurate tests
  • Experience with databases SQL and NoSQL (MongoDB, Postgres, etc...)
  • Ability to translate technical requirements into elegant code solutions
  • Focus on continuous improvement
  • Experience with cloud providers (AWS/OVH/Google, etc.) and service deployment
  • Embrace Agile/Scrum methodologies and development best practices
  • Experience with Git
  • Keeping in mind Security concerns throughout the process
  • Excellent problem solving and debugging skills to rapidly identify and fix bugs and problems
  • Ability to identify, implement and manage code libraries that minimize repetitive code and improve application design
  • Use code optimization techniques to improve robustness and performance of software

Human skills:

  • Proven and strong communication skills (in English and/or French)
  • Team player, but also fully able to efficiently accomplish tasks independently
  • Strong analytical and problem solving skills
  • You get things done
  • Willingness to wear multiple hats and be flexible in a fast-moving environment

Nice to have

  • Bachelor or master degree in Computer Science, a related field or equivalent experience
  • Knowledge/experience with other programing languages (C++, Go, .Net, Python)
  • Blockchain, bitcoin interest or willing to learn
  • Interest in smart contract (Ethereum)
  • Mobile dev (IOS, Android) or ability to hire and manage someone if needed
  • Experience with distributed systems and decentralized technologies
  • Experience with message or event driven architectures (such as RabbitMQ or Kafka)
  • Continuous Integration (CI) and Continuous Delivery (CD) DevOps experience.
  • Experience with Docker
  • Knowledge of Micro Services concepts and architecture

Please submit a resume, and a short text highlighting your experience with the mentioned programing languages and tools as well as your experience developing web applications and products.

About Catallaxy

With more than 15 Montreal-based experts and nearly 50 strategic partners worldwide, our service offering combines the technical expertise of the best core Blockchain talents and the strategic consulting power of Raymond Chabot Grant Thornton. Our objective is to prepare businesses for their blockchain transformation.

Catallaxy is also launching the Blockhouse. The Blockhouse is a unique innovation center bringing together the most influential players in the blockchain community. Strategically based in Montréal, the Blockhouse is a unique international showcase for decentralized and distributed technologies.