senior software engineer backend jobs in Ottawa

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6,247 senior software engineer backend job listings in Canada. Find daily updated positions from leading job boards.


  • Ottawa, Ontario, Canada Dominion Dynamics Full-time

    Reports to: Director of Software Type: Full-Time Location: Ottawa or Toronto Location AuraNet is Dominion Dynamics' mesh networking platform for autonomous assets working in contested and disconnected environments. It has to move data securely and in real time over links that aren't conventional wired networks, where bandwidth is scarce, connections drop,...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Dominion Dynamics Full-time

    Reports to: Director of Software Type: Full-Time Location: Ottawa or Toronto Location AuraNet is Dominion Dynamics' mesh networking platform for autonomous assets working in contested and disconnected environments. It has to move data securely and in real time over links that aren't conventional wired networks, where bandwidth is scarce, connections...


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

    Elevate your career as a Senior Backend Software Engineer with Affirm, focusing on online storage solutions in a remote-first environment. Be part of a team that builds and scales large-scale database systems. Affirm is seeking a talented senior software engineer to enhance its Data and Storage Services team. This role involves working with relational and...


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

    Elevate your career as a Senior Backend Software Engineer with Affirm, focusing on online storage solutions in a remote-first environment. Be part of a team that builds and scales large-scale database systems.Affirm is seeking a talented senior software engineer to enhance its Data and Storage Services team. This role involves working with relational and...


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

    At Aff, 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 Capacity Modeling team ensures Aff**irm can safely handle forecasted traffic—especially during peak sales events—by translating demand forecasts into concrete, testable...


  • Ottawa, Ontario, Canada Affirm, Inc. 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. Affir​m's engineering team is building a large-scale, highly available, and global infrastructure that is shared across multiple financial products. Ensuring that our...


  • Ottawa, Ontario, Canada Affirm Full-time

    Elevate your career as a Senior Backend Software Engineer with Affirm, focusing on online storage solutions in a remote-first environment. Be part of a team that builds and scales large-scale database systems. Affirm is seeking a talented senior software engineer to enhance its Data and Storage Services team. This role involves working with relational and...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Affirm, Inc. Full-time €153,000 - €213,000 Temporary

    At Aff, 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 Capacity Modeling team ensures Aff**irm can safely handle forecasted traffic—especially during peak sales events—by translating demand forecasts into concrete, testable...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Affirm, Inc. Full-time €153,000 - €213,000 Temporary

    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. Affirm's engineering team is building a large-scale, highly available, and global infrastructure that is shared across multiple financial products. Ensuring that our...


  • Ottawa, Ontario, Canada Affirm Full-time

    At Aff, 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 Capacity Modeling team ensures Aff**irm can safely handle forecasted traffic—especially during peak sales events—by translating demand forecasts into concrete, testable...


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

    The Consumer Authentication Platform team is looking for a passionate Senior Software Engineer to help build the secure, reliable, and seamless authentication experiences that connect millions of consumers with affirm’s financial productsAuthentication is the front door to affirmOur systems power critical consumer journeys (including sign-up, sign-in,...


  • Ottawa, Ontario, Canada Affirm Remote Full-time $153,000 - $213,000 Contract

    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. About The Engineering Team The Engineering team builds systems that power Affirm’s mission. We take pride in our craft, building reliable, performant, and scalable solutions...


  • Ottawa, Ontario, Canada Affirm Remote Full-time $153,000 - $213,000 Contract

    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. About The Team Machine Learning is central to how Affirm delivers on its mission, powering decisions across underwriting, fraud, servicing, and personalization. We are seeking a...


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

    The Consumer Authentication Platform team is looking for a passionate Senior Software Engineer to help build the secure, reliable, and seamless authentication experiences that connect millions of consumers with affirm’s financial products Authentication is the front door to affirm Our systems power critical consumer journeys (including sign-up, sign-in,...


  • Ottawa, Ontario, Canada Affirm Full-time

    The Consumer Authentication Platform team is looking for a passionate Senior Software Engineer to help build the secure, reliable, and seamless authentication experiences that connect millions of consumers with affirm’s financial productsAuthentication is the front door to affirmOur systems power critical consumer journeys (including sign-up, sign-in,...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada AutoScale Ventures Full-time

    Senior Software Engineer (Full-Time, Remote) — Canada ca (vehicle history and data) and SquidProxies.We're looking for a Senior Software Engineer to design, build, and evolve the backend systems that power these data-heavy products in production. If you enjoy owning systems end to end, from design through long-term support, this role is for you. ...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Dominion Dynamics Full-time

    Director of Software Full-Time AuraNet is Dominion Dynamics' mesh networking platform for autonomous assets working in contested and disconnected environments. It has to move data securely and in real time over links that aren't conventional wired networks, where bandwidth is scarce, connections drop, and the cloud may not be reachable at all. You'll...


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

    At Affim, 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. Affirm's engineering team is building a large-scale, highly-available, and global infrastructure that is shared across multiple financial products. Ensuring that our infrastructure...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Affirm, Inc. Full-time €209,000 - €269,000 Temporary

    Affirm's engineering team is building a large-scale, highly-available, and global infrastructure that is shared across multiple financial products. We pride ourselves on our culture across engineering of engaging in thorough technical design review, operational excellence, and capable incident response and analysis. The Compute Platform team owns the EKS...


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

    Elevate your career as a Senior Backend Software Engineer with Affirm, focusing on online storage solutions in a remote-first environment. Be part of a team that builds and scales large-scale database systems. Affirm is seeking a talented senior software engineer to enhance its Data and Storage Services team. This role involves working with relational and...