Top Front End Developer Jobs in Toronto

Join Veeva as a Front-End Software Engineer to develop and maintain cloud-based applications, working directly with teams to enhance user interfaces and solve customer problems.

Design and implement new website features and modify existing ones using React and TypeScript. Optimize performance, design technical solutions, split specifications into subtasks, perform code reviews, and ensure native UX/UI fidelity. Collaborate independently and apply SOLID and FRP concepts while working in a remote, distributed team.

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.

As a Senior Front End Developer, you will build and maintain responsive UI features using React and TypeScript, collaborating with cross-functional teams to enhance user experience and ensure code quality through best practices.

Join an early-stage B2B enterprise AI startup as a frontend or frontend-leaning fullstack engineer. Build user-facing products and standalone UI component libraries using React, TypeScript, and Next.js. Design and architect frontend features from scratch, handle fullstack responsibilities as needed, solve challenging technical problems, and contribute as a core member of the growing team in a hybrid Palo Alto office.

Lead frontend architecture and product development for member-facing web and mobile apps. Build high-performance, accessible React/React Native UIs, own end-to-end features including APIs and backend services, mentor engineers, drive design system and frontend standards, and collaborate with Product, Design, Clinical, and Data teams to deliver scalable, user-centered health experiences.

Lead frontend product experiences across web and mobile using React/React Native and TypeScript. Design conversational, AI-native financial planning interfaces, define frontend architecture and component systems, and contribute to AI layer, multi-model orchestration, reliability, and observability. Work cross-functionally across backend, infra, analytics, and product in a seed-stage, remote environment to ship fast, user-trusted experiences.

As a Front-End Web Developer, design and maintain responsive web applications, collaborate with designers, optimize performance, and work with APIs.

Seeking a Master's level Front End Developer Intern to design responsive applications using React.js and MUI. Collaboration with cross-functional teams is key.

The Staff Software Engineer will architect and maintain Datagrid Pages and Dataset Editor, focusing on UI design, efficient code, and mentorship while collaborating with teams to support Procore's AI strategy.

The Senior Software Engineer will develop AI/ML features, build robust APIs, create user-friendly UIs, and integrate AI models into ClickHouse Cloud.

As a Senior Frontend Developer (3D), you will create high-performance user interfaces for 3D data and spatial environments, collaborating with engineering and UX teams to deliver seamless experiences.

The Senior Software Engineer will enhance the platform through collaboration, technical leadership, and by developing high-quality frontend components, ensuring best practices and performance.

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.

Design, develop, and maintain scalable React + TypeScript web applications. Build reusable components, optimize performance (Core Web Vitals), integrate with REST/GraphQL backends, implement telemetry, write automated tests, participate in agile processes, perform code reviews, and mentor junior engineers.

Lead frontend architecture and build scalable TypeScript/React/Next.js applications that integrate with AI/LLMs and composable CMS/search platforms. Translate product and design specs into agent-driven implementations, mentor engineers, ensure performance, accessibility, SEO, and GCP-based deployments, and communicate technical decisions to clients and stakeholders.

The Senior Growth Engineer will lead growth experiments, develop customer-facing features, and design scalable APIs while collaborating with cross-functional teams to drive business impact.

The Senior Frontend Engineer role at Mozilla involves building user interfaces for Firefox, collaborating with designers, ensuring code quality, and mentoring fellow engineers. They focus on performance, security, and usability while working in a geographically-distributed team, contributing to open-source software.

As a Senior Frontend Engineer, you'll develop UI features for the AI voice platform, working with React and TypeScript while collaborating on backend systems and leading projects from concept to launch.

Design and build responsive, high-performance front-end interfaces for AI-driven finance workflows. Translate complex data into clear visualizations, balance automation with human control, collaborate with backend and AI teams, and own frontend architecture and design system standards.

Senior front-end engineer responsible for developing products end-to-end, owning projects from concept through launch, and shaping company direction to drive growth across portfolio companies.

The Software Engineer will develop high-quality responsive UIs for web/mobile, conduct user research, optimize applications, troubleshoot issues, and conduct code reviews.

The Senior Frontend Engineer will develop features for a mobile application, collaborate with design and backend teams, and maintain code quality.

The role involves leading frontend UI development, integrating functions, managing high-impact problems, and providing expertise in application programming.