backend engineer ruby jobs in Ottawa

We are hiring for one of our clients, seeking a Backend Java Developer to design, develop, and maintain scalable backend systems using Java and related technologies. The role involves collaborating with cross-functional teams to deliver high-performance solutions for critical business applications. Key Responsibilities: Develop and optimize backend services...

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn't just the Best Place to Play - it's also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we're part of a proud legacy of innovation and excellence. SIE is a dynamic technology company,...

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic technology...

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 Data and Storage Services team is responsible for affirm's data infrastructure across OLTP and OLAP systems, spanning critical online checkout databases, batch...

Honeycomb is seeking a backend-focused engineer who can design and deliver robust APIs in Go while contributing to full-stack features with React/TypeScript. You'll own production systems, mentor teammates, and participate in on-call rotations to ensure reliable observability and performance.You will collaborate across product design and engineering, shaping...

Sony Interactive Entertainment is hiring a Senior Backend Software Engineer to shape the architecture and services powering PlayStation experiences in Waterloo, Ontario. You will design, implement, and operate high-availability backends for mobile and web consumer apps, collaborating with product managers and cross-functional teams. You will mentor...

Fellow is hiring an engineer to build and operate distributed media processing systems that power real‑time meeting capabilities. You will handle audio/video ingestion, metadata, and events across diverse environments and platforms.You will work on reliable backend services, observability, and tooling while applying AI‑native approaches to coding,...

Advance to a Lead Backend Software Engineer position at League, where your expertise in Go and Kubernetes will be pivotal in driving innovative backend solutions. Collaborate and mentor across teams. As a Lead engineer in the Platform Engineering team, you will tackle some of the most complex problems in backend systems and improve overall architecture....

As a Senior or Staff Software Engineer, Backend on our Platform Engineering team, you bring deep technical expertise to the design and delivery of the foundational services and developer tools that power League’s engineering organization; working inside our pod-based delivery model alongside the teams that build on your servicesYou take ownership of...

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and...

Join Pragmatike as a Full-Stack Engineer, specializing in backend technologies from anywhere in Canada. Bring your expertise in Python and Node.js to deliver robust data-intensive platforms. This role focuses on backend systems, with approximately 70% of your time dedicated to back-end tasks such as API development and data flow management. You'll work...

Affirm is seeking a Backend Software Engineer to help design and build the next generation of our Checkout Platform. You will work on APIs and microservices to manage user transactions, focusing on performance and reliability, in a remote-friendly Canadian environment.The role emphasizes ownership, collaboration with teams, and a customer-centric approach as...

Affirm is seeking a Backend Software Engineer to design and build the next generation of the Checkout Platform, delivering a world-class buying experience with a fast-paced, scalable API and microservice stack.You will own checkout components, improve system health, and collaborate across teams to raise performance and reliability, enabling seamless...

Ottawa’s tech sector is growing, and so are the opportunities! If you’re exploring your next role in tech, Work in Ottawa can help you learn about leading employers and exciting careers in Canada’s capital.Led by Invest Ottawa, the city’s lead economic development agency, this initiative works alongside tech companies, recruiters and search firms,...

Affirm is seeking a Backend Software Engineer to design and build the next generation of our Checkout Platform, delivering a world-class buying experience with a focus on honesty and trust.You will design and implement new APIs and microservice interfaces to manage every user’s transaction, while collaborating with teams to improve performance and...

Collaborate with your pod — a small, focused team of developers — to build and maintain IAM capabilitiesContribute to the backend codebase with an eye toward reliability, scalability, and securityParticipate in technical design discussions and help break down projects into clear, actionable tasksIdentify and suggest improvements to our authentication and...

We are seeking a strong Backend Engineer to design, build, and maintain enterprise-grade APIs, middleware services, and data-driven backend systems. This role will focus on developing scalable API products, enabling API consumers, enforcing API governance standards, and supporting secure API onboarding and consumption patterns.The ideal candidate has strong...

Shape the future of AI at Solace as a Senior Backend Developer specializing in C++. This hybrid position focuses on building robust, event-driven systems. Solace is hiring for its Routing and Redundancy team and seeks a developer with at least four years of experience to design and implement critical features. Your role will encompass complex...

GitLab is seeking a Senior Backend Engineer for the Security Factory: Code Security team to advance code-level security across the DevSecOps platform. You will work on dependency analysis, SBOMs, and automated remediation, integrating AI-assisted tooling into secure software development.Youll collaborate across teams, mentor engineers, and contribute to...

Pragmatike is seeking a Full-Stack Engineer (backend-leaning) to own features end-to-end from a primarily backend focus with ~70% backend and 30% frontend work. The role is remote-friendly within Canada and targets engineers who enjoy deep backend work close to product delivery.The candidate will design, build, and maintain backend services, APIs, and data...