Top Front End Developer Jobs in Toronto

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

Build intuitive interfaces for construction workflows using React and TypeScript, optimizing performance and creating data-rich dashboards.

Lead frontend architecture and platform work for a unified web console: design app structure, cross-origin auth and session infrastructure, shared UI/platform abstractions, testing strategy, developer workflows, and tooling. Collaborate with product, design, growth, and infrastructure teams, provide technical leadership, mentor engineers, and participate in on-call rotation.

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 Engineer, you will design and implement complex frontend applications, manage architectural decisions, enhance code quality, and collaborate with teams to improve user experience.

Lead front-end architecture and implement React/TypeScript UIs for CPQ and revenue lifecycle features. Integrate front-ends with Salesforce (Apex/Lightning) and collaborate with Node.js/Java backend teams to design APIs, ensure performance, test coverage, and monitor production. Mentor engineers and shape UI libraries, accessibility, and UX for quote-to-cash workflows.

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.

The Software Developer II will design and develop full-stack features focusing on front-end development, contribute to product and technical discussions, and enhance the ShareGate platform's user experience with C# .NET and React.

The Senior Front-End Engineer will develop user-friendly software, improve APIs, and work within a team to create high-quality applications using JavaScript, TypeScript, and various frameworks.

Join Ema as a Software Engineer to design and develop user interfaces for web applications, collaborating with product managers and UX designers, and integrating APIs.

Lead frontend engineering at ClickUp, defining architecture strategy, solving technical challenges, and mentoring teams for scalable web applications using Angular and React.

The Senior Frontend Engineer will build and enhance core product features using Angular 2+ and React, while collaborating with cross-functional teams to ensure high-quality delivery and performance. Responsibilities include writing reusable code, mentoring teammates, and addressing technical challenges.

Lead the design and development of complex frontend systems at ClickUp, improving engineering velocity and mentoring other engineers.

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.

You will develop and expand pennylane.ai, collaborate with teams, maintain high code standards, and architect scalable frontend systems.

As a Senior Frontend Engineer, you will build modern web applications, make architectural decisions, write tests, and improve engineering processes.

The Frontend Javascript Developer will add new features to the web app, improve client-side performance, and work with design teams on UI/UX.

As a Senior Front-End Engineer, you'll design and maintain shopper and merchant-facing tools, ensuring high quality, reliability, and performance while collaborating in an agile environment.

Build and architect user-facing products and reusable UI component libraries using React, TypeScript, and Next.js. Design frontend systems, solve complex technical problems, and take on full-stack responsibilities at an early-stage, hybrid Palo Alto team.

Build and evolve the guest-facing booking experience using React and TypeScript. Collaborate with product, design, and backend to ship performant, accessible, and well-tested features. Improve conversion through profiling and experimentation, lead technical discussions and frontend architecture, mentor teammates, and champion engineering best practices across testing, performance, and accessibility.

Design, build, and evolve the guest-facing booking experience using React and TypeScript. Collaborate with product, design, and backend to ship performant, accessible, and well-tested features, improve conversion through profiling and experiments, lead frontend architecture discussions, and mentor teammates.

Design and maintain a modular, high-performance frontend: implement a pixel-perfect design system, optimize rendering and bundle sizes, architect client-side state for real-time data, integrate complex APIs, and ensure global availability and operational readiness for a Web3 consumer platform.

Join Megaport as a Senior Frontend Software Engineer to develop high-quality web applications, improve systems, and enhance user experiences for both customers and internal users. Collaborate with teams to build responsive and scalable solutions utilizing modern frontend technologies and practices.