Top Software Engineer Jobs in Montreal

Design, build, and scale backend services and APIs for Expedia's Content Platform. Implement data models and API contracts, write testable code, improve observability and reliability, debug production issues, participate in on-call rotations, mentor peers, and safely integrate AI/ML-enabled solutions to improve content quality and automation.

Build and own foundational Android platform infrastructure, including architecture, shared libraries, tooling, observability, performance systems, and developer experience. Lead cross-organizational technical initiatives, establish Android engineering standards, evaluate AI-assisted development tools, and build AI-powered platform capabilities. Collaborate across mobile, web, backend, product, and design teams while mentoring engineers and driving large-scale organizational impact.

Staff Android Software Engineer responsible for owning Cash App’s foundational Android platform, including architecture, shared libraries, infrastructure, developer tooling, observability, performance, and experimentation systems. The role drives AI-native engineering practices, leads cross-organizational technical initiatives, establishes standards, mentors engineers, and partners across mobile, web, backend, product, and design teams. Requires deep Android expertise and organizational-level impact.

Design, develop, test, deploy, monitor, and improve backend services and customer experiences for Expedia’s Home & Navigation team. Responsibilities include low-level system and API design, data modeling, service integrations, operational reliability, incident resolution, metrics-driven optimization, and responsible integration of AI/ML capabilities. The role collaborates with product, design, and engineering teams to deliver scalable, secure, maintainable, and highly observable services.

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.

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

Lead the architecture and evolution of native iOS foundations supporting seller-facing applications. Identify systemic problems, define platform strategy and standards, build prototypes and reference implementations, lead multi-quarter migrations, and establish practices for quality, testing, observability, release safety, and maintainability. Develop senior engineers and create scalable ownership models across teams.

Build and improve reliable, scalable frontend experiences for Affirm’s pre-checkout products, including Affirm.js, promotional messaging, experimentation, and developer-facing tooling. Use browser debugging, monitoring, metrics, and testing tools to maintain accessible, performant cross-browser experiences. Collaborate with engineers and stakeholders, contribute to code reviews, troubleshoot operational issues, and write clear, well-tested, extensible code.

Build and operate backend infrastructure and APIs for stablecoin-based payments, deposits, withdrawals, and transfers. Own projects from system design through production, improve distributed-system performance and reliability, collaborate with Product, Design, Infrastructure, and Compliance, and contribute to engineering quality through reviews and architectural best practices. The role requires blockchain integration experience and responsible use of generative AI.

Design, build, test, launch, and operate full-stack services automating responses to legal, regulatory, and civil requests. Develop backend systems, internal web tools, and integrations across microservice and event-driven architectures. Collaborate with Counsel, Compliance, and Operations while handling sensitive customer data. Participate in on-call, incident response, code reviews, modernization efforts, and responsible use of AI-powered development tools.

Build and operate backend systems supporting post-transaction card account accuracy, issue resolution, and customer communications. Break down projects, deliver work in phases, collaborate with product and cross-functional teams, monitor system metrics, support availability and on-call operations, and contribute to code reviews and interviews. The role requires backend development experience, distributed systems knowledge, and proficiency in Python or Kotlin, AWS, MySQL, and Kubernetes.

Develop server-side poker game features and gameplay functionality in Go for high-performance, large-scale applications. Build and integrate REST and gRPC APIs, SDKs, tools, and technologies; extend core systems; contribute to architecture, security, scalability, testing, and operations. Collaborate with engineers and cross-functional stakeholders, participate in long-term initiatives, review code, improve processes, and deliver solutions for live mobile game titles.

Lead the design and development of secure, scalable enterprise solutions using Microsoft Dynamics 365, Power Platform, and Azure. Responsibilities include building C# plugins, CRM integrations, JavaScript and TypeScript components, REST APIs, cloud workflows, Copilot Studio agents, and microservices integrations. The role also involves applying secure authentication patterns, guiding Dynamics best practices, and contributing to Azure DevOps CI/CD automation. Candidates need five years of C#/.NET experience, API design expertise, Power Platform experience, and fluency in French and English.

Design, develop, test, maintain, and enhance software applications, SDKs, and APIs throughout a formal development lifecycle. Responsibilities include requirements analysis, solution design, code reviews, testing, documentation, production releases, application support, technology evaluation, and collaboration with business partners. The role requires software development experience, broad programming and web technologies knowledge, project scoping abilities, and intermediate English communication for daily collaboration with international stakeholders.

Develop and support cloud-based applications, backend services, automation tools, frontend components, APIs, data pipelines, and microservices. Responsibilities include AWS production support, testing, troubleshooting, code reviews, technical design, deployment, and collaboration in an Agile/SCRUM environment. The role contributes to scalable, secure, reliable software across the full development lifecycle.

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.

Build and operate production-grade web scraping and data acquisition infrastructure primarily in Rust. Responsibilities include developing resilient scrapers, managing proxies, reverse-engineering web applications, operating heterogeneous distributed systems, monitoring fleet health, diagnosing failures, improving observability and reliability, and deploying LLM-based agents for source discovery and troubleshooting. The role collaborates with analysts and researchers to deliver fresh, high-quality data for trading and research operations.

Develop low-latency electronic trading infrastructure, including network and systems programming, data collection and visualization systems, market-data pipelines, algorithmic trading systems, and AI-assisted automation products. The role requires strong programming and object-oriented design knowledge, familiarity with C++, Golang, Java, Python, or Rust, SQL, relational databases, and Linux, plus fluent written and spoken French and English.

Develop and deploy slot-game features in Unity and C#, including gameplay, UI/UX, engine systems, and creator tools. Build server-backend functionality, investigate and extend slot-engine systems, define technical tasks, and quickly resolve bugs. The role requires collaboration, strong communication, and delivery under deadlines, with opportunities to work on live mobile games and performance optimization.

Develop and maintain desktop, web, backend, and cloud software for transit and physical security products. Responsibilities include building C#/.NET and WPF applications, REST APIs, cloud services, integrations, automated tests, and web features using Angular, React, and TypeScript. The role involves troubleshooting distributed applications, contributing to architecture and code quality, participating in reviews and design, and collaborating with QA and support teams throughout the software development lifecycle.

Develop, validate, and automate Meraki Dashboard features for the Cisco Catalyst family. Design and implement high-quality network management capabilities, present functionality efficiently for customers, and collaborate with product managers, cross-functional teams, and technical marketing engineers. The role involves software development using Python, Ruby on Rails, or Go, with opportunities to work on networking, virtualization, AI agents, containers, and Agile/Scrum delivery.

Design, build, and operate scalable backend services, APIs, and data models for Expedia's content and product catalog systems. Lead system and low-level design, end-to-end feature delivery, CI/CD, observability, incident response, and operational excellence. Collaborate with product, architecture, and engineering teams, mentor developers, and integrate AI/ML solutions to improve content quality, coverage, and developer productivity.

Develop customized software solutions, improve reusable frameworks, provide demonstrations and follow-up support, collaborate with project and cross-functional teams, and enhance internal tools and processes. The role requires object-oriented C#/.NET development, troubleshooting, analytical thinking, teamwork, autonomy, and fluent French and English. Experience with WPF, MVVM, SQL Server, Azure, React, TypeScript, and Kanban is advantageous.

Develop and maintain full-stack imaging applications through design, implementation, testing, support, optimization, and documentation. Build Angular and TypeScript front ends with Node.js or Python back ends on AWS. Conduct code reviews, mentor junior developers, coordinate application support, improve performance and scalability, create validation and technical documentation, and contribute to project planning and continuous professional development.

Develop and optimize computer graphics pipelines for gaming, animation, and VFX projects. Integrate Maya and other DCC APIs, automate data processing, support machine learning data workflows, and optimize systems for cloud infrastructure. Collaborate with artists, researchers, and technical teams to debug pipeline issues, manage large datasets, and improve procedural production workflows.