Top Front End Developer Jobs in Montreal

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.

Set frontend technical direction for Affirm’s checkout and decisions orchestration systems. Lead architecture and delivery of major web application features, establish engineering standards, manage reliability and on-call operations, collaborate with product, design, and analytics, and mentor engineers. The role focuses on building fast, clear, and reliable checkout experiences using modern declarative UI frameworks.

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 scalable, high-performance frontend applications using React or Vue and Next.js. Collaborate with product, design, and backend teams to create intuitive monetization workflows, optimize dashboard performance, ensure accessibility and cross-browser compatibility, participate in code reviews, support CI/CD and observability improvements, and deliver features from requirements through testing.

Supports healthcare system implementation, configuration, customization, testing, validation, and maintenance. Analyzes business and system requirements, creates specifications, troubleshoots client issues, and collaborates with project, infrastructure, technical, and development teams. The role also involves database querying, web development, accessibility compliance, quality assurance, process improvement, and ongoing learning in an entry-level environment.

Lead the design, development, testing, and maintenance of Eaton’s ADPS front-end user interface using Angular and modern web technologies. Responsibilities include analyzing requirements, reviewing code, leading development cycles and sprint activities, evaluating technologies including AI productivity tools, collaborating with stakeholders, and mentoring team members. The role supports software for electricity distribution network and renewable energy analysis.

Own and evolve high-traffic consumer web experiences, experimentation, instrumentation, marketing technology integrations, conversion tracking, and measurement systems. Lead engineers through ambiguous projects, define technical plans, improve reliability and observability, support on-call operations, establish quality standards, and mentor team members. Partner with Product, Marketing, Analytics, Data Engineering, and platform teams to build performant, privacy-aware systems that address consent, cookies, tagging, and consumer-data requirements.

Lead front-end development for partner-facing financial web products, including embeddable onboarding modules, partner dashboards, and self-service workflows. Build complex multi-step forms and data-heavy interfaces with React and TypeScript, contribute to Node.js server layers, collaborate on API contracts, and work closely with product, design, and backend teams. Own features from design handoff through production release while maintaining multiple codebases and upgrading business-account APIs.

Build and lead the frontend architecture for Tailscale’s next-generation web console. Responsibilities include developing shared frontend infrastructure, cross-origin authentication and session systems, testing strategies, unified product experiences, developer tooling, deployment workflows, and accessible UI patterns. The role partners across design, growth, infrastructure, and engineering, provides technical leadership and mentoring, and participates in an on-call rotation.

The Frontend Software Engineer will develop and maintain critical applications using TypeScript and React. The role involves engagement in product discovery, coding, and deployment of applications to enhance manufacturing processes.

Build and ship React Native and TypeScript features for sportsbook, casino, arcade, and fantasy products across iOS, Android, and web. Responsibilities include complex UI, real-time WebSocket data synchronization, physics-based animations, canvas graphics, deep linking, payment integrations, platform debugging, performance optimization, automated testing, and CI/CD contributions.

Lead frontend architecture and delivery for Retell AI’s voice platform. Build responsive React and TypeScript interfaces for agent configuration, dashboards, analytics, and monitoring. Partner with product, design, and backend engineering; improve performance, accessibility, reliability, and reusable component patterns. Provide technical leadership through code reviews, testing, mentoring, API design, and ownership of complex projects from concept through launch.

Lead frontend architecture and product delivery across Moxie, with a focus on design systems, GraphQL data architecture, frontend tooling, CI, performance, and development workflows. Partner with Design, Product, engineering managers, and staff engineers to establish canonical patterns, guide adoption without formal authority, ship FinOps features, and drive organization-wide technical initiatives. The role remains hands-on while influencing architecture, engineering culture, and AI-native software development practices.

Design and build user-facing features for a live video chat and multiplayer gaming platform. Collaborate with designers and product managers, lead technical quality and scalability efforts, rapidly experiment, and solve customer problems through deep user understanding. The role focuses on front-end architecture using TypeScript and React, with Node.js proficiency and strong CSS fundamentals.

Build, maintain, and optimize responsive, conversion-focused websites, landing pages, and campaign assets. Translate marketing and design objectives into accessible, high-performing web experiences using HTML, CSS, JavaScript, and CMS platforms. Collaborate with marketing, design, SEO, and content teams; support CMS templates, integrations, forms, analytics, A/B testing, troubleshooting, technical SEO, and performance optimization.

Lead the evolution of Seeq’s frontend infrastructure, including React systems, state management, design systems, reusable patterns, and developer experience. Build accessible, responsive, maintainable components; evaluate open-source technologies; guide large-scale refactors; diagnose complex defects and performance issues; and establish technical standards adopted across teams. Collaborate with engineers, designers, product teams, and customers through reviews, mentoring, documentation, and cross-functional communication.

Build polished, responsive front-end applications for Chiri Brain and client-specific AI solutions. Design user flows, prototypes, interfaces, reusable components, and design systems while integrating APIs, authentication, business data, agent workflows, and security controls. Work directly with customers and stakeholders to understand needs, rapidly prototype, gather feedback, and ship production-quality software. Help establish scalable front-end architecture and use AI-assisted development tools to accelerate delivery.

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.

Own the architecture and evolution of a mature server-rendered web UI for the Graykey platform. Establish frontend conventions, improve performance, implement testing, analytics instrumentation, real-time UI patterns, and web security practices. Collaborate with UX, product, and engineering teams while working regularly with Python and Jinja templates. Build reliable interfaces for constrained, on-premises environments and provide technical direction through code reviews and pairing.

Designs, develops, tests, reviews, deploys, and supports scalable React and TypeScript web applications. Leads frontend architecture, micro-frontend integration, performance, accessibility, security, CI/CD, and software quality practices. Provides technical leadership through design and code reviews, mentors junior and intermediate developers, troubleshoots production issues, and collaborates with UX, product, backend, architecture, and security teams.

Frontend Developer Interns will build and maintain web interfaces, reusable frontend libraries, and customer-facing admin console features. Responsibilities include managing Jira tickets, contributing to software projects, participating in code reviews, testing implementations, collaborating with backend, UX, and QA teams, and learning from experienced mentors. Interns will work on search experiences or Coveo organization management tools in a hybrid engineering environment.

Frontend Developer Interns will build reusable frontend libraries, search experiences, and Coveo administration console features. Responsibilities include managing Jira tickets, implementing and testing features, participating in code reviews, collaborating with UX, QA, and backend teams, and applying feedback under mentorship. Interns will contribute to real-world projects while developing software engineering and project ownership skills.

Build and maintain features across a real-time AI-generated React application and a mature React analytics platform. Responsibilities include component systems, streaming UI contracts, multi-tenant theming, customer embeds, accessibility, testing, performance, data visualization, and API collaboration. The role requires independent ownership, clear technical writing, mentoring, and effective work across established and greenfield codebases.

Lead frontend engineering for Affirm’s consumer web experiences using React and TypeScript. Own quarterly team goals, deliver major product features, modernize web architecture and design systems, and develop tools such as codemods and AI agent skills. Collaborate with product, design, analytics, and engineering teams; establish quality standards; monitor availability and metrics; support on-call operations; resolve technical issues; and mentor engineers.

Build and enhance Coalition’s underwriting workbench, a data-intensive frontend application used by underwriters. Responsibilities include developing responsive React interfaces, AI-assisted workflows, complex state management, REST API integrations, performance and reliability improvements, reusable components, testing, code reviews, and roadmap contributions. The role partners closely with Product, Design, backend engineers, and underwriters to improve workflows and user outcomes.