Top Front End Developer Jobs in Toronto

Build sophisticated user interfaces for AI and blockchain interactions, including monitoring tools and decentralized application interfaces, while collaborating across teams for seamless user experience.

Develop and maintain Next.js front-end features and components integrated with a headless CMS. Implement responsive, accessible, SEO- and performance-focused UIs, bilingual support, analytics tracking, and platform deployments on Azure. Collaborate with marketing, design, and engineering on content models, tooling, testing, and documentation to improve authoring and delivery workflows.

The Senior Frontend Engineer will build tools for restaurant management, focusing on availability planning and event offerings, using modern frontend technologies.

The Senior Frontend Engineer will lead development of UI features using React and TypeScript, collaborate on API designs, and optimize performance in a data-intensive financial platform environment.

Build and scale growth systems across the stack to drive retailer acquisition, onboarding, and engagement. Own end-to-end projects, implement experimentation and personalization infrastructure, design reliable services and APIs, instrument and analyze metrics with Data Science, and optimize user experiences for performance and conversion.

Lead complex frontend projects, improve code quality and development workflows, write automated tests, conduct code reviews, mentor junior engineers, and promote engineering excellence. Build and optimize responsive applications using TypeScript, React, modern state management, and frontend performance practices. Collaborate with QA and engineering teams, influence technical decisions, assess business impact and technical risks, and leverage AI tools to improve development efficiency and code quality.

Develop and maintain front-end applications and user interfaces for enterprise systems. Responsibilities include coding, testing, debugging, documentation, troubleshooting, accessibility compliance, responsive and cross-browser development, stakeholder requirements gathering, SDLC collaboration, database integration, implementation support, and technical issue resolution. The role requires extensive Java, Angular, JavaScript, TypeScript, Oracle, Spring, REST API, and front-end development experience, with five days per week onsite in Toronto.

Lead frontend development for the DataLab product, guiding technical direction, architecture, component design, accessibility, performance, and developer experience. Build scalable React and TypeScript interfaces, collaborate with product and backend teams, mentor engineers, and establish UI standards. Use AI-assisted coding tools responsibly and contribute to unit, component, and end-to-end testing with technologies including GraphQL, Jest, Testing Library, Playwright, and Storybook.

Lead development of Angular and TypeScript front-end applications, build reusable UI/visualization libraries, translate UX into production code, optimize performance (including on embedded hardware), implement real-time rendering strategies, collaborate with designers and engineers, contribute to front-end architecture and standards, and participate in code reviews and technical design discussions.

Design, build, test, and maintain Magnet One cloud platform features across front-end and back-end. Collaborate on architecture, perform code reviews, troubleshoot defects, and drive best practices for secure, performant, and maintainable software.

Lead technical direction for a high-performance 2D/3D viewer platform. Drive cross-team architecture, implement scalable platform capabilities, mentor engineers, improve engineering velocity, and resolve complex production issues while partnering with Product, UX, and Architects.

As a Frontend Product Engineer, you will build core user-facing product experiences using React JS and ensure seamless API integration, collaborating with product managers and designers.

As a Frontend Software Engineer, you will design, build, and maintain user-friendly features, collaborate with teams, and contribute to the frontend architecture of an AI-powered business planning platform.

Build and scale customer-facing eCommerce and subscription experiences using React and Next.js. Translate designs into responsive, accessible, high-performance features, integrate APIs and third-party services, optimize Core Web Vitals, write tested code, review pull requests, resolve bugs, and own projects through deployment. Collaborate with product, design, marketing, backend engineering, and operations while contributing to architecture and engineering process improvements.

Lead architecture and development of fast, accessible web and mobile UIs using React and TypeScript. Build cross-platform UI components, implement state management and data fetching, champion accessibility and performance, collaborate with backend/product/design, mentor engineers, and use Rust when performance demands. Support legacy and new plans and scale systems for millions of users.

As a Senior Frontend Engineer, you will architect scalable client applications, focusing on frontend/mobile development, event instrumentation, and collaboration with cross-functional teams to optimize performance and data systems.

Lead frontend modernization by migrating legacy web apps into a microfrontend ecosystem, ship production-critical React/Next.js code, define reusable platform patterns, and collaborate cross-functionally to ensure performance, developer experience, and long-term maintainability.

The Software Engineer will refine the existing React app and build new features, acting as the frontend expert to debug issues. They will collaborate with a high-performing team in an in-person environment and focus on delivering a polished customer experience.

Design and build scalable mobile applications using React and React Native. Collaborate with teams to deliver high-performance applications.

Lead front-end feature design and implementation, build high-quality user interfaces, own product components and architecture, collaborate with engineering team, write performant React + TypeScript code, and drive shipping of customer-focused features in a remote-first environment.

Develop mobile-first, responsive Vue.js frontends focused on performance and UX. Build frontend management systems, participate in code reviews and team ceremonies, mentor junior engineers, and collaborate with backend teams.

Develop server-side applications using Kotlin and Java, collaborate with teams to enhance Atlassian plugins, and ensure code quality through testing and reviews.

Lead front-end development of a content-driven Jamstack site (getjobber.com) using Next.js, React and TypeScript. Own performance, accessibility, component library, A/B experimentation, and headless CMS integrations. Drive AI-assisted workflows, mentor developers, set technical standards, collaborate with product and CRO teams, and improve tooling to increase shipping velocity and conversion.

Join a talent network connecting founding front-end engineers with VC-backed startups. Responsibilities include designing and building scalable, high-performance web UIs, optimizing performance and accessibility, creating reusable component libraries, integrating APIs and client-side logic, and defining front-end best practices and testing strategies while collaborating with designers, backend engineers, and founders.

Join a talent network connecting staff front-end engineers with VC-backed startups. Responsibilities include designing and building scalable, high-performance front-end applications, defining front-end architecture and component libraries, improving performance and accessibility, integrating with APIs, establishing testing and CI/CD best practices, and mentoring junior engineers.