senior fullstack engineer jobs in Toronto

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

  • Software Engineer II

    11 hours ago


    Toronto, Ontario, Canada Scribd, Inc. Full-time

    Scribd, Inc. is on a mission to advance human understanding. Our four products — Scribd®, Slideshare®, Everand™, and Fable — help billions of people across the globe move beyond access and into insight, application, and expertise. Culture at Scribd, Inc. We support a culture where our employees can be real and be bold; where we debate and commit as...


  • Toronto, Ontario, Canada Lyft Full-time

    At the company, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Interns work side-by-side with top engineers in the industry while having autonomy from the get-go. They contribute to user-facing products and are able to see their work go live...


  • Toronto, ON, Canada Affirm Full-time €181,000 - €241,000 Contract

    Staff Software Engineer, Fullstack (Account Management) 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 Account Management team is part of Trust & Safety within affirms Checkout organization. We build...


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

    Staff Software Engineer, Fullstack (Account Management) 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 Account Management team is part of Trust & Safety within affirms Checkout organization. We build secure,...


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

    Staff Software Engineer, Fullstack (Card Experiences) 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 Card Experiences team builds the product surfaces that make the affirm Card feel simple and trustworthy. We...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Affirm, Inc. Full-time

    Elevate your software engineering career as a Senior Fullstack Engineer with affirm in Remote Canada. Collaborate on innovative frontend projects that shape user experiences across mobile and web. At affirm, you will engage in fullstack development, bringing your expertise in web apps, APIs, and mobile technologies to the forefront. This senior role...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Affirm Full-time

    Elevate your engineering career with Affirm as a Fullstack Software Engineer specializing in Ads Platform. Collaborate remotely to innovate personalized customer experiences and enhance merchant advertising strategies. In this remote role, you will leverage 1.5+ years of software engineering expertise to contribute to the development of web applications...


  • Toronto, Ontario, Canada RewardOps Full-time

    Senior Fullstack Developer RewardOps is a dynamic and innovative tech company dedicated to creating cutting-edge SaaS products that empower businesses to thrive in the loyalty space. We are seeking a highly skilled Senior Fullstack Developer with expertise in Ruby on Rails and React to join our talented development team and help drive our mission to deliver...


  • Toronto, Ontario, Canada Reason One Full-time

    Reason One is hiring a Senior Fullstack Developer to build innovative products for clients like Emory Healthcare, Children's Nebraska, and Beacon Health. As a Senior Fullstack Developer, you'll lead the technical delivery of enterprise CMS solutions for U.S.healthcare organizations - integrating code and design with CMS functionality on hybrid platforms...


  • Toronto, Ontario, Canada Jonas Software Full-time

    Senior Fullstack Developer RewardOps is a dynamic and innovative tech company dedicated to creating cutting-edge SaaS products that empower businesses to thrive in the loyalty space. We are seeking a highly skilled Senior Fullstack Developer with expertise in Ruby on Rails and React to join our talented development team and help drive our mission to deliver...


  • Toronto, Ontario, Canada Affirm Full-time

    At Affir,m 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. We are looking for a passionate engineer to join our Capital Orchestration team, which is responsible for providing liquidity to affirm by enabling the sale and collateralization...


  • Toronto, Ontario, Canada Solstice Full-time

    WHY YOU SHOULD JOIN US At Solstice, we're building AI software that helps life sciences teams turn complex scientific and brand information into marketing content they can create, refine, and review with confidence. We've worked with leading life sciences manufacturers and more than 50 pharma brands. You'll build the systems and experiences that make this...


  • Toronto, Ontario, Canada Solstice Full-time

    Solstice is hiring a Fullstack AI Engineer to build and maintain the agent platform, focusing on Python, FastAPI, and React/Next.js. You will own backend services, orchestration, and customer-facing interfaces in the Toronto office, with an initial on-site period and remote option later.Collaboration with product, Applied AI, and engineering teams is...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Affirm Full-time €181,000 - €241,000 Temporary

    Staff Software Engineer, Fullstack (Account Management) 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 Account Management team is part of Trust & Safety within affirms Checkout organization. We build...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Affirm, Inc. Full-time €181,000 - €241,000 Temporary

    Staff Software Engineer, Fullstack (Account Management) 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 Account Management team is part of Trust & Safety within affirms Checkout organization. We build...


  • Toronto, ON, Canada Pentasia Full-time

    My client is seeking a highly skilled Senior Full Stack .NET Developer to join a fast-paced technology team responsible for developing and enhancing mission-critical platforms. This role offers the opportunity to work on highly scalable, real-time systems while contributing across the full software development lifecycle. The successful candidate will play a...


  • Toronto, Ontario, Canada Perseus Group Full-time

    Senior Fullstack Developer RewardOps is a dynamic and innovative tech company dedicated to creating cutting‑edge SaaS products that empower businesses to thrive in the loyalty space. We are seeking a highly skilled Senior Fullstack Developer with expertise in Ruby on Rails and React to join our talented development team and help drive our mission to...


  • Toronto, Ontario, Canada Jonas Software Group Full-time

    Senior Fullstack Developer (Ruby on Rails / React)### Senior Fullstack Developer (Ruby on Rails / React)Apply: Toronto (RewardOps): Full time: Posted Today: R53705## ## Job Description:**Senior Fullstack Developer** RewardOps is a dynamic and innovative tech company dedicated to creating cutting-edge SaaS products that empower businesses to thrive...


  • Toronto, ON, Toronto Census Division, ON; Ontario, 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 Web The 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...


  • Toronto, Ontario, Canada PSD - Research, Consulting, Software Full-time

    PSD Citywide is hiring a Fullstack Software Developer for a fully remote role based in Ontario. You will join a cross-functional team to design, build, and support enterprise applications for local and regional governments.The role requires 3–10 years of experience in fullstack development and proficiency with JavaScript, PHP, SQL, Angular.JS, Symfony, CSS...