backend engineer lead jobs in Ottawa

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


  • Ottawa, ON, Canada Affirm, Inc. Remote Full-time $130,000 - $180,000 Contract

    Affirm, Inc. seeks a Staff Engineer to lead the Fraud Decisioning team, shaping architecture and delivering scalable fraud-fighting systems. You will collaborate with Product, ML, Analytics, and Business teams to define and deliver high-impact initiatives, mentoring engineers and enforcing best practices.The role emphasizes designing modular solutions,...


  • Ottawa, Ontario, Canada Jeeves Full-time

    Jeeves is looking for a Senior Backend Engineer to join our engineering team. You will design and build the backend systems that power Jeeves’s financial platform — working across payments, cards, spend management, and compliance infrastructure that serves businesses across the Americas and beyond Design, build, and maintain scalable, reliable backend...


  • Ottawa, ON, Canada Clipboard Full-time

    Join to apply for the Software Engineer, Backend role at Clipboard Get AI-powered advice on this job and more exclusive features. We exist to lift as many people up the socioeconomic ladder as possible. We dramatically improve lives by letting professionals turn extra time and ambition into career growth and financial opportunity. We achieve this with our...


  • Ottawa, Ontario, Canada Modes Full-time

    OverviewModes is a digital transformation and organizational design collective working with various clients throughout North America. Our focus is on financial services. We help clients plan, design and launch digital human-centred experiences that cater to users\' needs and deliver elegant solutions to challenging problems. We constantly seek top talent to...


  • Ottawa, Canada eleven-X Inc. Full-time €95,000 - €130,000 Contract

    eleven-x is transforming the parking experience through its industry-leading parking technology: a sensor-based space-occupancy monitoring solution and comprehensive software platform that enables frictionless parking. Our solution includes our own hardware, firmware, network solutions, web applications, and mobile applications. Customers rely on our...


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

    Affirm, Inc. seeks a Staff Engineer to lead the Fraud Decisioning team, shaping architecture and delivering scalable fraud-fighting systems. You will collaborate with Product, ML, Analytics, and Business teams to define and deliver high-impact initiatives, mentoring engineers and enforcing best practices. The role emphasizes designing modular solutions,...


  • Ottawa, Ontario, Canada AutoScale Ventures Full-time

    Senior Software Engineer (Full-Time, Remote) — Canada Work Schedule: 9:00 AM - 5:00 PM PST About the role At AutoScale Ventures, we build large-scale systems behind products like VinAudit.ca (vehicle history and data) and SquidProxies.com (proxy infrastructure). We're looking for a Senior Software Engineer to design, build, and evolve the backend systems...


  • Ottawa, ON, Canada Affirm Full-time

    The Streaming team at Affirm is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validationWe leverage existing open source technologies like Kafka, Flink, Schema registry and also build our own as neededAs a member of our team you would spend time identifying and...

  • Senior Software Engineer

    60 minutes ago


    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, Canada Affirm Full-time

    Affirm is seeking a software engineer for the Streaming team in Ottawa. You will design and scale data infrastructure, build backend services, and collaborate across product, design and analytics to ship features that rely on Kafka, Flink and AWS.You will participate in ideation, articulate constraints, and help manage trade-offs with stakeholders while...


  • Ottawa, Ontario, Canada Platform.sh Full-time

    Upsun seeks a Backend Software Engineer to enhance our billing systems. Focus on backend service development in Go for complex billing integrations and ensure accuracy in customer invoicing.In this role, you will build and maintain the backend services for our billing platform. Your expertise will drive projects that handle revenue across multiple currencies...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Platform.sh Full-time

    Upsun seeks a Backend Software Engineer to enhance our billing systems. Focus on backend service development in Go for complex billing integrations and ensure accuracy in customer invoicing. In this role, you will build and maintain the backend services for our billing platform. Your expertise will drive projects that handle revenue across multiple...


  • Ottawa, ON, Canada Outlier Remote Full-time $80,000 - $113,000 Contract

    Earn Up To $50/hr as an OpenClaw Agent BuilderShape the future of autonomous agents like OpenClaw. Freelance, remote, up to $50 USD/hr. Weekly payments.Trusted by 10,000+ software engineers worldwideMIN EXP REQUIRED2+ yearsPAY RATEUp to $50 USD/hrEarn Up To $50 USD/hr— Plus Additional IncentivesRates vary based on expertise and project requirements. Paid...


  • 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 Full-time

    The Online Storage team provides a set of managed databases as a platform, used to persist data for all AffIn servicesOur platform enables self-service access to OLTP storage systems, including Relational DB(MySQL), KV(DynamoDB), Distributed SQL(TiDB) and Cache(Redis)As a team, we are responsible for various data and access patterns, including but not...


  • Ottawa, Ontario, Canada Affirm Full-time

    At Affrim, 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 Observability team builds the platform every Affrim engineer relies on to understand the behavior and performance of our systems. Our platform ingests 200+ TB/day of metrics,...


  • Ottawa, ON, Canada Affirm, Inc. Remote Full-time $120,000 - $180,000 Contract

    The Data and Storage Services team is responsible for affirm’s data infrastructure across OLTP and OLAP systems, spanning critical online checkout databases, batch orchestration, streaming infrastructure, event-driven frameworks, BI, analytics tooling, large-scale data platforms, and agentic data tools such as semantic layers and internal platform data...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Outlier Full-time €50 Temporary

    Earn Up To $50/hr as an OpenClaw Agent Builder Shape the future of autonomous agents like OpenClaw. Freelance, remote, up to $50 USD/hr. Weekly payments. Trusted by 10,000+ software engineers worldwide MIN EXP REQUIRED 2+ years PAY RATE Up to $50 USD/hr Earn Up To $50 USD/hr— Plus Additional Incentives Rates vary based on expertise and project...


  • 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, ON, Canada Dominion Dynamics Full-time €120,000 - €180,000 Contract

    Build secure backend systems in Python and Rust for AuraNet from Ottawa or Toronto, supporting real-time data across disconnected environments. As a Senior Software Engineer Backend, you will design distributed systems for Dominion Dynamics’ mesh networking platform. The work spans networking, security, containers, and autonomous platforms. You will own...