senior backend software engineer python jobs in Ottawa

We are looking for a Staff Engineer to lead projects and initiatives on the Fraud Decisioning teamYou’ll be responsible for building tools and systems that empower affirm fraud fighting capabilities, work with cross-functional teams to adopt and monitor those and use analytics and data driven decisions to further improve the performance and quality of...

The Engineering team builds systems that power affirm's mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we're enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus...

The Engineering team builds systems that power affirm's mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we're enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our...

Blackpoint Cyber is the leading provider of world-class cybersecurity threat hunting, detection and remediation technology. Founded by former National Security Agency (NSA) cyber operations experts who applied their learnings to bring national security-grade technology solutions to commercial customers around the world, Blackpoint Cyber is in hyper-growth...

Blackpoint Cyber is the leading provider of world-class cybersecurity threat hunting, detection and remediation technology. Founded by former National Security Agency (NSA) cyber operations experts who applied their learnings to bring national security-grade technology solutions to commercial customers around the world, Blackpoint Cyber is in hyper-growth...

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...

Build AI-powered backend systems in Ottawa with Python, workflow orchestration, and scalable data-intensive architecture on a hybrid schedule. Own production software from design through delivery.askpolly seeks a Senior Software Engineer with 5–8 years of professional experience. You will design backend services, robust APIs, and agentic workflows for an...

At Affi, 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 Streaming team at Affi is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validation. We...

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. As we build Affim's advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

Shape reliable capacity plans with Python or Kotlin as a Senior Backend Engineer on Affirm’s remote Canada Capacity Modeling team. Forecast traffic and tune resources for peak demand.This senior position owns quarterly goals while guiding engineers through ambiguous, open-ended problems. You will build backend systems at scale using AWS, MySQL, or...

Build Virtual Care Platform features with Python and Django while supporting HIPAA-regulated systems that help patients receive care and accurate billing. As a Software Engineer, you ship small to medium-sized work across a mature Django codebase and supporting services. You write tests, review code, and move features from requirements through production....

Job Description Job Description We are seeking motivated and talented Software Engineers to join our automotive software engineering team. The successful candidates will contribute to the design, development, integration, testing, and maintenance of automotive infotainment systems and embedded software applications. Candidates should have a strong...

Build Virtual Care Platform features with Python and Django while supporting HIPAA-regulated systems that help patients receive care and accurate billing.As a Software Engineer, you ship small to medium-sized work across a mature Django codebase and supporting services. You write tests, review code, and move features from requirements through production. The...

The Batch Developer Experience team makes batch development and testing faster and more reliable at affirmAs a developer on this team you will partner with product and infrastructure engineers to build the tools and systems that streamline workflows, strengthen testing and ultimately improve the reliability of affirm’s critical batch workloadsWith the...

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...

Build secure banking and payment backends as a Senior Java Engineer, using Spring Boot and distributed-system technologies in an international FinTech company. Our client is an established FinTech software provider with more than 25 years of experience. You will design, develop, test, deploy, and support Java backend services. The work covers REST APIs,...

Airborne Platform Software EngineerBuild the software that powers the future of connected aviation.At Gogo, we’re transforming how people connect in the sky by building technology that powers connectivity aboard business aircraft around the world.As our Airborne Platform Software Engineer, you’ll design, develop, and test production-quality software for...

Company Description askpolly transforms large-scale human conversation into actionable insights. By leveraging AI and patented statistical models to analyze organic social media data, askpolly provides near-instant, statistically valid insight into market reactions, election outcomes, and messaging strategy. We are moving beyond traditional polling to give...

Airborne Platform Software Engineer Build the software that powers the future of connected aviation. At Gogo, we’re transforming how people connect in the sky by building technology that powers connectivity aboard business aircraft around the world.As our Airborne Platform Software Engineer, you’ll design, develop, and test production-quality software...

H2 Analytics is redefining how professionals train for high-stakes environments through advanced simulation and data-driven tools. We build EASE (Exercise Architect Suite), a tool used by military, intelligence, law enforcement, and emergency response organizations to develop intelligence-focused mission-critical training exercises. About the team and...