Développeuse Principale ou développeur principal Full-Stack (Contrat de 18 mois)

TMX GROUP

UShybridPosted Jun 17, 2026
Posting intelligenceActively listedReposted 37×, possible evergreen/ghost posting

Skills

kubernetesjavascriptdockerpythonc++cicdvue

About the role

Venture outside the ordinary - TMX Careers

The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innovative organizations enhancing capital markets. United as a global team, we’re connecting cross-functionally, traversing industries and geographies, moving opportunity into action, advancing global economic growth, and propelling progress. Through a rich exchange of ideas, meaningful collaboration, and a nimble operating model, we're powering some of the nation's most critical systems, fueling capital formation and innovation, bringing increased opportunity to business visionaries, product ingenuity to consumers, and career exploration to our team.

Ready to be part of the action?

The Web & UI squad is responsible for developing and enhancing all trade management applications and services. We provide solutions to help our clients manage their trades and allocations activities. As a Senior Full Stack Developer, you will be part of a dynamic group focused on transforming our platforms into industry-leading digital products and developing innovative solutions for both internal and external clients. You will work within a fast-paced, Agile environment alongside Product Owners, a Scrum Master, Architect, and developers.

This is a senior-level role requiring the ability to not only build and implement solutions but also to actively contribute to technical design and web architecture decisions.

This role reports to: Senior Manager and Squad Lead, Web Development

Job Location: This role is hybrid (2-3 days/week in the office) - based in Montreal, QC.

Key Accountabilities

Full-Cycle Development: Actively participate in the complete software development lifecycle, from technical design and implementation (build/code/test) of web-based applications and digital interfaces.

Optimization & Code Quality: Contribute to continuous application improvement and optimization through regular code reviews, strategic refactoring, and architectural updates.

Support & Troubleshooting: Collaborate closely with team members during troubleshooting sessions, support escalations, and bug resolution.

Problem Solving: Diagnose and solve complex technical problems with efficient and scalable solutions.

Standards & Best Practices: Apply design patterns, coding standards, and development best practices to consistently produce secure, reliable, reusable, and scalable code.

Process Improvement: Champion continuous process enhancements, voicing technical or operational concerns and actively contributing to their resolution.

Collaboration & Alignment: Facilitate regular meetings and collaborative working sessions with development team members and various business units to analyze and resolve ongoing technical issues.

Must Have(s)

Experience: 5+ years of experience as a full-stack web developer (front/back-end) utilizing Python, Vue/JavaScript, C++ object-oriented programming, or equivalent technologies.

API Development: Proven ability to design and implement web services with RESTful APIs.

Front-End Development: Demonstrated experience implementing front-end web client applications.

Tools & DevOps: Strong working knowledge of version control software and workflows (Git or SVN) along with CI/CD build pipelines.

Automation Mindset: A strong focus on automating repetitive development and operational tasks.

Education: Postsecondary education in Computer Science, Software Engineering, or equivalent practical working experience.

Language Skills: Fluency in both French and English (written and spoken) is essential, as this role involves regular interaction with partners and stakeholders in both languages.

Nice to Have(s)

Familiarity with Agile/Scrum frameworks and methodologies.

Practical working experience with Nginx web servers.

Domain experience within the business area of derivatives trading and/or clearing.

Practical knowledge of the Google work environment (G Suite).

Proficiency with Unix/Linux command-line tools.

Hands-on experience with Kubernetes and Docker container technologies.

Familiarity with cloud deployment strategies and environments.

In the market for…

Excitement - Explore emerging technology and innovation, as well as ventures and digital finance that shape the future of global markets! Experience the movement of the market while grounded in the stability of close to 200 years of success.

Connection - With site hubs in some of the world’s most multicultural cities, we leverage our size and structure to create rich connections and belonging while experiencing powerful global impact through our work.

Impact - More than a platform, we use our talents to power mission-critical systems that drive global economic advancement, innovation, and growth. As well, our employee-led Team Impact spreads social good via our giving strategy.

Wellness - From empathetic leadership to a culture of flexibility and balance, we believe wellness at work creates the maximum yield and a stronger “we”. Plus, with a cloud-first and hybrid workstyle, as well as generous time-off and leaves, we support a life well lived!

Growth - From a growth mindset in our work, to expansion in our business, TMX is home to action-takers energized by the achievement of ambitious growth.

Please note that our company is not currently sponsoring work permit applications and the applicant must be authorized to work in the country where this position is located.

TMX is committed to creating and sustaining a collegial work environment in which all individuals are treated with dignity and respect and one which reflects the diversity of the community in which we operate. We provide accommodations for applicants and employees who require it.

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