senior fullstack engineer

10,000 senior fullstack engineer job listings in Canada. Find daily updated positions from leading job boards.


  • Hamilton, Ontario, Canada Affirm Full-time

    At affirm we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams...


  • Toronto, Ontario, Canada Affirm, Inc. Full-time

    Senior Software Engineer, Fullstack (App Experience)Remote CanadaAt affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user...


  • Victoria, British Columbia, Canada Affirm Full-time

    At affirm we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams...


  • London, Ontario, Canada Affirm Full-time

    At Aff… no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams span across multiple products and areas to engage and provide value to our customers, starting with...


  • ca | ca Affirm, Inc. Full-time

    Senior Software Engineer, Fullstack (App Experience) Remote Canada At Affinity, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user...


  • St. John's, Newfoundland and Labrador, Canada Affirm Full-time

    At affirm we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams...


  • Windsor, Ontario, Canada Affirm Full-time

    At Aff… no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams span across multiple products and areas to engage and provide value to our customers, starting with...


  • Winnipeg, Manitoba, Canada Affirm, Inc. Full-time

    Senior Software Engineer, Fullstack (App Experience)Remote Canada At affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user...


  • Canada Affirm, Inc. Full-time $153,000 - $213,000 Contract

    Senior Software Engineer, Fullstack (App Experience) Remote Canada At Affinity, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user...


  • Montreal (administrative region), QC, Canada CA004 WEPOINT Canada Développement Full-time €110,000 - €140,000 Contract

    Wepoint à Montréal recherche un(e) Développeur(se) Full Stack talentueux(se) pour rejoindre une équipe agile et multidisciplinaire, et participer à l’ensemble du cycle de développement logiciel. Vous maîtrisez Python, JavaScript/TypeScript, React et REST, et vous travaillez avec des bases de données relationnelles et des mécanismes...


  • toronto, canada Giga Full-time

    About GigaGiga has recently raised a $61M Series A and has several paying customers, including DoorDash. We’re building the next generation of customer experience — real-time AI agents that can understand emotion, resolve issues instantly, and scale across the world’s largest enterprises.It’s an exciting inflection point for the company. While we...


  • north york, canada Stream Full-time

    Seeking a Senior Fullstack Engineer to join a 5-person Moderation team working on core stability, alerting, and AI models. Requires backend experience with Go (training provided) or other languages, scalability, Python, and occasional frontend work with React.


  • Quebec, Capitale-Nationale, Canada Affirm, Inc. Full-time

    The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and WebThe teams span across multiple products and areas to engage and provide value to our customers, starting with the Home hub in the app or website, which expands into the various product offers...


  • east york, canada Stream Full-time

    Seeking a Senior Fullstack Engineer to join a 5-person Moderation team working on core stability, alerting, and AI models. Requires backend experience with Go (training provided) or other languages, scalability, Python, and occasional frontend work with React.


  • toronto county, canada Quo Full-time

    Seeking a Senior Fullstack Engineer to design and deliver end-to-end product experiences, driving growth through frontend and backend integrations. Responsibilities include rapid prototyping, experimentation, and iteration.


  • north york, canada Quo Full-time

    Seeking a Senior Fullstack Engineer to design and deliver end-to-end product experiences, driving growth through frontend and backend integrations. Responsibilities include rapid prototyping, experimentation, and iteration.


  • north york, canada Giga Full-time

    Seeking a Senior Fullstack Engineer to build and own features for AI agents, from backend APIs and data models to customer-facing interfaces and analytics dashboards.


  • toronto, canada Stream Full-time

    Stream uses Go for our video SFU & chat API. We power chat for many large apps like Strava, Nextdoor, Patreon, IBM, Adobe and Midjourney. In addition to Go we use CockroachDB/Postgres, RocksDB, Raft and Redis.We are willing to train you on Go if you’re experienced on a different tech stack (we have a 10‑week internal onboarding program focused on Go,...


  • Ahuntsic North, QC, Canada Affirm Full-time

    At Aff… no hidden fees, no surprises, and no tradeoffs on what matters most.The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams span across multiple products and areas to engage and provide value to our customers, starting with...


  • Regina, Division No. 6, Canada Affirm Remote Full-time $153,000 - $213,000 Contract

    At Aff… no hidden fees, no surprises, and no tradeoffs on what matters most. The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams span across multiple products and areas to engage and provide value to our customers, starting with...