Top Software Engineer Jobs in Montreal

Design, build, and maintain highly scalable backend services and APIs for Expedia's content platform. Deliver robust low‑level designs, data models, and well‑tested code; own operational health, observability, and incident response; collaborate with product and cross‑functional teams; and safely integrate AI/ML capabilities to improve content quality and automation.

Design, build, and operate full-stack services and UIs for Expedia Group's content platform. Own end-to-end feature delivery, implement maintainable code, design APIs and data models, apply data-driven improvements, and safely integrate AI/ML solutions while following testing, CI/CD, observability, and operational standards.

Design, build, and maintain full‑stack services and UIs for Expedia's content platform. Own end‑to‑end feature delivery, API and data modeling, performance and observability, and safely integrate AI/ML capabilities. Collaborate across teams in a DevOps, agile environment.

Design, build, test, and operate backend services and APIs for Expedia's content platform. Collaborate with product and partner teams, ensure observability, reliability, and security, and safely integrate AI/ML capabilities to improve content quality and automation.

Design, build, and maintain backend services for fraud and risk detection at scale. Deliver features end-to-end, partner with Data Science/ML, improve reliability and observability, respond to incidents, and build reusable systems to reduce financial loss and protect users.

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.

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

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

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.

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.

Design, build, and maintain accessible, secure, and performant iOS mobile applications. Translate product requirements into well-tested code, integrate with backend services/APIs, troubleshoot issues, and collaborate with Product, Design, and QA. Participate in design discussions, code reviews, and continuous learning to improve user experience.

Design, implement, test and deploy satellite data processing pipelines and software. Build distributed cloud and big-data frameworks, deploy Kubernetes-based workflows, maintain CI/CD, produce technical documentation, run design/code reviews, and collaborate with multidisciplinary teams to define and deliver product roadmap features.

Hands-on full‑stack internship delivering and maintaining the company’s internal selection and quoting portal. Develop features, ensure scalability, write tests, perform code reviews, integrate with systems (SEPTOR, BI, Salesforce), and support users and tickets while collaborating with engineering, sales, and stakeholders. Role is fully on-site.

Work as a development intern building and testing features for Flare's cyber threat intelligence product. Contribute to application design, assess new ideas, join development meetings, and collect/process cybercrime data. Mentored internship with concrete projects to develop software engineering skills, autonomy, and decision-making.

As a Software Engineer in ML Infrastructure, you will develop scalable data pipelines, enhance data discovery, and collaborate with teams on data organization and ML features.

The Software Engineer will develop enterprise software solutions, participate in code reviews, collaborate with teammates, write tests, and continually learn new tools and practices.

The Senior Software Developer will develop an operating system and services for Cloudlink devices focusing on lifecycle management and application deployment while ensuring quality assurance through automated testing practices and collaboration with stakeholders.

The Software Developer will work on application lifecycle management, developing tools and scripts for efficiency, and maintaining source code management. Responsibilities also include configuring build pipelines and collaborating with R&D teams.

The Software Developer will work on a world-class enterprise video surveillance solution, participating in design, development, and task planning while collaborating with quality assurance members. Responsibilities include developing new features, architecting solutions, and engaging in peer programming.

As a Software Developer, you'll design, develop, and deploy web applications using cutting-edge technologies, collaborating closely with UX designers and other teams to enhance user experience.

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

Work as a full-stack developer on the React (TypeScript) admin portal and Python backend, bridging software and data engineering. Build end-to-end features, embed reporting visualizations, support data pipelines (Snowflake, dbt, Airflow), participate in deployments and monitoring (AWS EKS, Kubernetes, CircleCI, Datadog), and collaborate with product, design, and data teams while growing technical skills under mentorship.

Build and scale distributed backend services for growth infrastructure (notifications, referrals, targeting, lifecycle communications, ML ranking). Design resilient service-oriented systems on cloud, ship well-tested production code, run growth experiments/A-B tests, improve developer tooling and shared platform capabilities, and collaborate cross-functionally to deliver measurable acquisition and retention impact.

Lead and deliver AI-native full‑stack engineering projects from prototype to production. Collaborate with PM, design, and analytics, mentor engineers, define technical plans, ensure operational reliability, and drive quality, code review standards, and on-call support for rapid, experiment-driven product development.