Top Front End Developer Jobs in Toronto

The Senior Frontend Engineer will lead complex frontend features, enhance user experience and contribute to product architecture within Forma's ICM Operations platform.

Build, maintain and scale the e-commerce front end across desktop and mobile. Collaborate with design, marketing, and ops to deliver features from concept to launch, own technical infrastructure, ensure high-quality UX and customer satisfaction, and support A/B testing and DevOps workflows.

Develop and maintain responsive enterprise web application interfaces using modern frontend technologies. Build reusable components, integrate RESTful APIs, troubleshoot usability and performance issues, and collaborate with backend, UX, product, QA, DevOps, and globally distributed teams. Participate in code reviews and Agile software development while supporting AI-powered People Operations applications.

Develop front-end web applications from ideation through launch using JavaScript, jQuery, React, HTML, and CSS. Collaborate with product managers and designers in an Agile environment, prototype features, improve user experience, implement development best practices, test and debug front-end code, review code, and mentor other developers.

Build and refine front-end experiences for web and mobile: onboarding, checkout, gallery features, design system and enterprise dashboard. Collaborate closely with designers and PMs, ship fast, maintain aesthetic quality, and iterate with user feedback using React, Next.js and TypeScript.

Join a small engineering team to design, prototype, and build scalable, performant SaaS products. Architect systems, set technical strategy, collaborate across teams, and take ownership of shipping production software.

As a Front End Engineer Tech Lead, you'll design and develop frameworks, provide technical leadership, collaborate across teams, and drive architecture decisions.

Build and maintain responsive, accessible frontend interfaces using React and TypeScript. Collaborate with product, design, and backend teams to launch performant, scalable UIs, create reusable component libraries, define APIs, mentor engineers, and drive frontend best practices.

The Staff/Lead Fullstack Engineer will enhance the Mimica Webapp by architecting scalable UI components, managing large datasets, and optimizing performance while collaborating with cross-functional teams.

Founding front-end engineer to design and build Flick's editor UI (canvas, timeline, node graph, playback). Lead architecture, prototype creative workflows, optimize complex UX interactions, establish code quality and performance practices, collaborate with design/product/AI backend, and drive key technical and product decisions.

Develop high-performance frontend applications, collaborate with design and backend teams, ensure quality coding practices, and improve platform scalability and performance.

Design and implement frontend applications using JS, CSS, React, and Flutter. Collaborate on technical specs and contribute to documentation, ensuring user experience and performance.

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

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.

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.

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.

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

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.

Develop advanced 3D visualization systems for industrial data, focusing on real-time interaction, performance optimization, and user experience on web platforms.

Lead end-to-end implementation of high-fidelity, performant, and accessible frontend features for a realtime collaborative visual canvas. Translate designs into polished interactions, optimize performance and accessibility, collaborate with PMs, designers, and backend engineers, and shape frontend best practices and design systems.

As a Staff Frontend Software Engineer, you'll develop critical infrastructure and user-facing features for a secure AI platform targeted at legal firms, collaborating across teams to ensure reliability and innovative solutions.

Lead frontend engineering to build polished, high-performance React+TypeScript interfaces for enterprise AI collaboration. Own end-to-end UI features, design system components, optimize performance, and collaborate with design and backend teams to deliver secure, reliable experiences for lawyers and organizations.

The Frontend Engineer will implement UI features, automate UI testing, and oversee production releases while focusing on user experience in the blockchain space.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.