backend engineer ruby jobs in Montreal

About Motion Motion is building the command center for creative strategists: an AI-native platform that bridges the gap between performance marketers and creative teams, so they can uncover what’s working, what’s not, and ship more winning ads across platforms like YouTube, LinkedIn, Meta, and TikTok. We’re at the forefront of AI as the foundation of...

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...

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...

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...

Drive data architecture as a Senior Backend Engineer with Affi, focusing on marketing technology and measurement systems in a remote environment. Collaborate with cross-functional teams to enhance consumer growth strategies. As a Senior Software Engineer in the Marketing & Privacy Engineering (MPE) team, you will lead the design and implementation of...

Take your backend engineering skills to the next level with Affirm, focusing on identity solutions in a remote setting. Leverage your expertise in Python or Kotlin to shape key processes for our international markets. Affirm is on the lookout for a Staff Software Engineer specializing in backend systems. You will guide technical strategies, collaborate...

Join Affim as a Senior Software Engineer, specializing in backend for Lakehouse Infra, with a remote work model across Canada. Focus on scalable distributed systems, and drive impactful data solutions. In this role, you will lead a team to achieve quarterly goals, navigating challenges to deliver results. Collaborating with stakeholders is essential for...

At Affirms 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 Ledger Engineering team enables rapid financial product innovation by providing an audit-grade ledger platform that ties ambitious company growth to a highly regulated industry's...

A North American IT solutions provider is seeking a Fulltime Software Engineer with 4+ years of experience in Java, Spring framework, and database management. You will design and support software components while collaborating with cross-functional teams. Strong communication skills and agile team experience are crucial. The role offers a competitive salary...

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...

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....

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...

Become a key player at Dialogue as a Senior Backend Software Developer, focusing on creating applications that foster employee wellness. Contribute to the leading virtual care platform in Canada. In this role, you will report to the Software Development Manager and leverage your abilities to build and refine critical applications and API services. Your...

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. the company’s Bikes & Scooters team is developing the future of micro-mobility and we are looking for a solid, experienced Software Engineer to join our Stations Software Platform...

Build robust backend solutions with Motion as a Senior Software Engineer. Focus on designing, implementing, and maintaining high-quality APIs in a remote-first work environment. Motion is seeking a Senior Software Engineer proficient in backend development to enhance their AI-native platform. You will leverage your expertise in technologies like Node.js,...

Abbeal SAS seeks an Intermediate Back-end Developer for a major bank in Montreal to build and maintain back-end applications and APIs in a demanding financial environment.Join a back-end team in a permanent Montreal-based role and help evolve applications and services that power critical banking operations.Experience with API architectures and databases is...

Overview The Lead Backend Engineer on the AI Platform team plays a critical role in building, evolving, and leading the backend systems and engineering practices that power internal products, customer‑facing capabilities, AI‑enabled workflows, and operational decision‑making across the organization. This role combines hands‑on backend engineering...

At Affid, 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 affirm'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...

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 mostYour role will be instrumental in designing the next generation of Affirm’s Checkout Platform to provide a world‑class buying experience that puts customers first!We...

A payment technology leader is seeking a Senior Software Engineer to join their fully remote team. This role focuses primarily on backend development, maintaining and enhancing payment processing systems while collaborating with various teams. The ideal candidate should have over 5 years of software development experience, strong skills in API design and...