Top Software Engineer Jobs in Montreal

Build and launch scalable back-end APIs and web applications for AI-powered customer contact channels. Break projects into phases, collaborate with product, design, and analytics teams, monitor service metrics, support availability and on-call operations, debug code, conduct reviews, and contribute to team development. The role requires ownership, clear communication, and experience with React or Vue plus Python or Kotlin.

Build, launch, and maintain reliable backend systems using Python or Kotlin. Break projects into deliverable phases, collaborate with product, design, and analytics teams, monitor service health, support on-call operations, debug code, conduct code reviews, and contribute to team development. The role requires designing distributed systems, working across large codebases, writing tested and extensible code, and communicating effectively with global engineering stakeholders.

Design, build, scale, and operate high-volume payment APIs and distributed systems serving global traffic. Lead complex engineering projects from requirements through production, improve reliability, performance, observability, fault tolerance, and security, and participate in on-call and incident response. Collaborate across product and engineering teams, use AI-assisted development tools responsibly, and mentor engineers through technical reviews and documentation.

Build and improve high-traffic consumer web experiences using React and TypeScript. Develop experimentation, instrumentation, marketing integrations, attribution, and measurement systems while meeting privacy requirements. Collaborate with Product, Design, Marketing, Analytics, and Data Engineering, write tested and extensible code, monitor system metrics, support availability and on-call efforts, participate in code reviews, and contribute to team development.

Lead the technical direction and implementation of large-scale SaaS product features. Build secure, reliable, maintainable, well-tested software; evaluate architectural trade-offs; debug team inefficiencies; and contribute to code reviews, documentation, and complex bug fixes. Collaborate across product, design, and engineering, influence strategy, identify organizational blockers, mentor engineers, and improve engineering practices around testing, performance, security, privacy, and reliability.

Build and launch full-stack customer-facing features and backend services for Affirm Card. Collaborate with product, design, analytics, and engineering teams; design scalable APIs, support distributed systems, monitor service reliability, participate in on-call operations, review code, and contribute to technical planning and team development.

Build and operate high-throughput backend services for AI agent orchestration, calendar systems, real-time infrastructure, APIs, and data pipelines. Design scalable platform services, infrastructure as code, and highly available production systems using Go, PostgreSQL, Kubernetes, and cloud platforms. Collaborate with AI, product, and frontend teams to deliver AI-powered features, contribute to reliability and testing practices, and mentor junior engineers.

Leads the technical direction and implementation of large-scale product features. Builds secure, reliable, maintainable, and well-tested full-stack software; evaluates technical trade-offs; collaborates with product and design teams; resolves production issues; contributes to reviews and documentation; and mentors junior engineers.

Design, build, and maintain customer-facing React frontend systems for search, catalog navigation, data lineage, dashboards, and AI-assisted analysis. Improve performance across large trees, tables, and streaming interfaces; shape product and UX decisions with design and product partners; raise engineering quality through reviews, documentation, complex bug resolution, and mentorship.

Build and operate Block’s data platform, including warehousing, orchestration, business intelligence, governance, and agentic workflows. Develop reliable Python services, developer tools, and Terraform infrastructure for petabyte-scale data. Partner with data practitioners and product teams, establish engineering standards, provide technical direction, and mentor engineers while ensuring security, reliability, observability, usability, and data governance.

Build and operate a scalable data platform supporting warehousing, orchestration, business intelligence, governance, and agentic workflows. Develop Python services, Terraform infrastructure, and developer tools for petabyte-scale data. Partner with data practitioners and product teams, establish security and reliability patterns, set technical direction, improve engineering standards, and mentor engineers.

Build and operate end-to-end full-stack features for Loom billing, subscriptions, integrations, and platform migrations. Develop responsive React interfaces, scalable backend APIs and microservices, payment and identity integrations, and reliable cloud-based systems. Responsibilities include observability, monitoring, testing, code reviews, documentation, security, performance optimization, and participation in Agile ceremonies and technical design reviews.

Lead end-to-end delivery of complex backend software projects for high-throughput distributed data-processing systems. Define technical vision, write designs, develop and test software, automate deployments, resolve production bottlenecks, conduct code reviews, improve maintainability, and participate in on-call support. The role also involves mentoring engineers, influencing technical strategy, and scaling streaming ingestion pipelines.

Build REST APIs, customer-facing React components, backend monitoring, CI/CD pipelines, and content-management integrations. Collaborate with engineering, UX, and visual design teams while developing full-stack solutions using JavaScript or TypeScript, React, Node.js, server technologies, and cloud platforms. The role is fully remote but limited to candidates located in Canada within the PST or MT time zones.

Build and ship scalable backend features and services in a distributed environment. Responsibilities include developing RESTful microservices, reviewing code, monitoring service performance, improving reliability and security, participating in Agile development, and mentoring teammates. The role requires proficiency in a modern object-oriented language, database experience, cloud knowledge, and familiarity with scalable architecture patterns.

Lead complex backend engineering projects from design through launch, solve architecture and high-risk technical problems, conduct code reviews, develop scalable microservices and distributed systems, mentor engineers, and collaborate across teams. The role requires strong experience with backend applications, prominent programming languages, public cloud platforms, databases, software architecture, agile development, and performance trade-offs. Candidates must be located in Canada within the PST or MT time zones.

Provides technical leadership for Expedia Group’s content platforms, defining backend and full-stack architecture for scalable content acquisition, enrichment, curation, and delivery. Designs AWS cloud-native systems, REST and gRPC APIs, data models, and distributed services. Establishes engineering standards for testing, deployment, reliability, observability, and operational excellence across multiple teams. Guides cross-functional architecture decisions and the safe production integration of AI and machine learning capabilities. Requires 10+ years of experience and French-English bilingualism.

Principal Full Stack Software Engineer responsible for guiding technical direction, designing large-scale SaaS features, and building secure, reliable distributed systems. The role involves collaborating across product, design, and engineering; evaluating technical trade-offs; debugging team inefficiencies; contributing to code reviews and complex fixes; mentoring engineers; and improving engineering practices around testing, performance, security, privacy, and service operations.

Provides technical leadership on complex, high-impact engineering projects from design through launch. The role involves architecture, company-wide initiatives, engineering excellence, mentoring technical leaders, and establishing standards for scalable, reliable, secure, observable systems. The engineer will collaborate across teams, communicate complex technical topics, and apply customer-focused decision-making and A/B testing techniques.

Participate in a 15-week full-time software engineering internship in Vancouver, Burnaby, or Richmond. Build and ship product features, contribute code to Atlassian products, apply data structures and algorithms, and learn full-lifecycle development through mentorship and collaboration with senior engineers. Work may involve cloud initiatives and AI-driven features.

Own quarterly engineering goals, lead backend engineers through ambiguous problems, and deliver scalable, highly available systems. Collaborate with product, design, and analytics on technical decisions, monitor service reliability, support on-call operations, improve code and design standards, and mentor team members. Build and launch backend systems using Python or Kotlin, AWS, MySQL, and Kubernetes while maintaining quality across a large codebase.

Own quarterly engineering goals, lead backend engineers through ambiguous problems, and deliver highly available distributed systems. Collaborate with product, design, analytics, risk, data science, and operations while balancing technical trade-offs. Improve code quality, design standards, monitoring, availability, and on-call practices. Identify and resolve technical and business issues, support team development, and provide mentorship and feedback.

Build and scale MongoDB Atlas Agent Engine, including its developer CLI, SDKs, runtime, memory, retrieval, identity, and governance layers. Design and deliver well-tested distributed systems, shape architecture, improve performance and reliability, conduct code reviews, establish development practices, collaborate across teams, mentor engineers, and own complex projects. The role is remote within Canada and focuses on high-scale compute, foundational cloud services, and concurrent software.

Develop SaaS features for a cloud subscription-management platform using .NET, C#, React, Azure, microservices, and distributed systems. Responsibilities include architecture, implementation, testing, documentation, deployment, monitoring, code reviews, troubleshooting, DevOps, and on-call support. The role collaborates with UX designers, stakeholders, and development teammates to deliver secure, scalable, accessible, and maintainable software.

Develop and ship web, mobile, and API features for Affirm’s card acquisition experience. Break projects into deliverable phases, collaborate with product, design, and analytics, write tested and extensible code, support production availability through metrics and on-call activities, review code, and contribute to interviewing and team development.