Top Software Engineer Jobs in Montreal

The Software Engineer will enhance Lending products for Cash App, focusing on building complex systems, APIs, and collaborating with multiple teams to support economic empowerment through accessible credit.

As a Software Engineer, you will design and build backend services and integrations for financial operations, focusing on scalable technology solutions and AI enablement, while collaborating with cross-functional teams to ensure compliance and data integrity.

The Software Engineer II will ship features to enhance Affirm's marketplace, supporting product development and collaborating with design and analytics teams while ensuring operational stability.

As a Staff Fullstack Software Engineer, you'll optimize user monetization systems at Dropbox, leading technical strategies for checkout and subscriptions while mentoring engineers.

As a Software Engineer II, you'll implement critical features, collaborate with teams, maintain full stack systems, and ensure high-quality code in a dynamic environment.

You will design, develop, and launch backend systems, APIs, and collaborate with cross-functional teams to support product development and operations.

The Senior Infrastructure Software Engineer will build and manage a scalable, in-house search platform, ensuring seamless user experiences and expanding capabilities for a global user base.

The Senior Infrastructure Software Engineer will re-architect Identity systems, focusing on large-scale distributed systems design, API design, and collaborate with teams to implement wide-ranging use cases while mentoring junior engineers.

Build and maintain backend systems for money movement and card ledger features. Design, develop, and launch scalable APIs and services (Python or Kotlin) using AWS, MySQL, and Kubernetes. Collaborate with product, design, data science, and cross-functional teams, support operations and on-call, create and monitor metrics, participate in code reviews and hiring, and deliver well-tested, extensible solutions.

Seeking a Software Engineer/Senior Software Engineer to design, develop, and deliver quality backend services and APIs using Go, with emphasis on Kubernetes and cloud services.

Design, implement, test and deploy backend services on AWS. Build RESTful APIs in C#, model data in MySQL and DynamoDB, use microservices and Docker, follow Agile/Scrum, participate in CI/CD and peer code reviews to deliver production-ready features.

Design and implement a high-frequency trading platform, optimize for latency, develop market data systems, and create analysis tools.

Design and implement new front-end and back-end features, maintain existing functionality, write testable code with TDD, build REST APIs, work with AWS (CloudFormation, ECS) and SQL, follow SOLID principles and agile practices, and participate in sprint-based, collaborative R&D.

The role involves leading software projects, collaborating with teams, contributing to R&D, and ensuring quality control in software solutions.

Develop and maintain modern microservices using C#, ASP.NET, and NoSQL databases. Involve in CI/CD processes and contribute to full-stack development within a collaborative team.

Develop and deploy new features, handle legacy architecture, work with Node.js and TypeScript, and scale to millions of customers for a wireless communication startup.

Lead design and build of a real-time observability and root-cause analysis system for high-density GPU fabrics. Collect, reduce, correlate telemetry from switches, hosts, NICs, GPUs, and services; model topology and ownership; separate fabric faults from host/driver/RDMA/scheduler issues; and produce operator workflows for triage and remediation.

Develop, launch, and maintain backend systems for card issuing and transaction processing. Break down projects, collaborate with product/design/analytics, write clear well-tested code, support operations and on-call duties, create/monitor metrics, perform code reviews, and participate in hiring and team growth activities.

As a Senior Backend Software Engineer, you'll develop systems and APIs for applications, ensure scalability and availability, and may lead teams, focusing on agile development and collaboration with multidisciplinary teams.

Develop and implement middleware for intelligent environment devices, collaborate with teams, design and test software modules, investigate new technologies, and ensure implementation meets design objectives.

Looking for a Software Engineer to build financial products and tooling for Cash App's Lending team, ensuring quality and compliance while collaborating across domains.

Build, operate, and extend Affirm's data platform and application tooling to enable self-service data applications at scale. Implement platform features (provisioning, CI/CD, access control), integrations, data governance, automation, observability, and on-call operations. Contribute to roadmap for semantic layers, agentic data tooling, and AI-native workflows while raising engineering and operational standards.

Design, implement, test, and maintain backend services and APIs. Write clean, testable code, produce end-to-end tests and documentation, collaborate with product and design, and support production systems under guidance of senior engineers.

As a Senior Software Engineer, you will manage Baseten's billing and revenue infrastructure, ensuring reliability and collaboration with finance and sales teams while evolving the billing platform.

Design, develop, test, deploy and maintain backend services and APIs for satellite payload planning. Optimize databases and schemas, implement data transformation pipelines, ensure high availability, participate in architecture design, and provide on-call operational support.