Top Front End Developer Jobs in Toronto

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.

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.

Lead frontend technical strategy and deliver high-impact web, iOS, and Android features using React and TypeScript. Drive cross-team initiatives, modernize web code and design systems, build tooling (codemods, AI agent skills), ensure operational reliability (monitoring, on-call, playbooks), and mentor engineers while collaborating with product, design, and analytics.

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.

The Senior Growth Platform Engineer will design and build scalable backend systems, APIs, and growth infrastructure to enhance experimentation and targeting capabilities for retailers.

Lead frontend-focused development of Pebl's conversational AI assistant, designing and building UX for streaming responses, agentic workflows, prompt/tool integrations, and resilient failure recovery. Own frontend and supporting backend contracts, mentor engineers, prototype new interaction patterns, and troubleshoot production AI-specific issues.

Own day-to-day web operations and build high-performing, conversion-focused landing pages. Lead migration from WordPress to a Next.js headless CMS stack, optimize performance and SEO, support analytics and CRO, and embed AI-first tooling into the marketing development workflow. Collaborate across marketing, product, and infrastructure to maintain web health, privacy compliance, and continuous improvement.

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.

The Sr. Staff Frontend Engineer will lead complex initiatives, drive technical direction, and mentor others while focusing on high-quality code and system design for eBay's live shopping experience.

Build, maintain, and deploy frontend features using Angular. Own tickets end-to-end, collaborate with BAs, product and backend developers, integrate with REST/Web APIs, ensure UI/UX consistency, accessibility, performance, and code quality, and participate in agile delivery.

Design, implement, and maintain scalable front-end systems (video pages, listings, short-form features). Lead migration from PHP server-rendered pages to component-driven architecture using Lit and TypeScript. Build reusable, performant components, integrate REST/GraphQL/real-time APIs, optimize load and runtime performance, participate in code reviews, and collaborate with product, design, and backend teams to deliver user-focused features.

Lead frontend architecture, design, build, test, and debug Angular web applications. Mentor junior developers, provide Tier III support, translate UI/UX into code, and champion new technologies while estimating and executing projects.

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.

Lead and own the frontend for a perpetuals exchange using TypeScript and React. Design order entry, positions, pricing displays, and charts, make trader-focused UX decisions, and operate autonomously on a small, fast-moving team.

Design, architect, and deliver scalable, high-performance Angular (v21) frontend systems. Define frontend standards and design system components, own end-to-end implementation, ensure accessibility, performance, testing, CI/CD, and reliability. Partner with Product and UX, mentor peers, and drive cross-team frontend initiatives.

Design and build customer-facing banking web applications using React and Vue.js. Implement scalable front-end solutions, define API contracts with backend partners, advance test automation and CI/CD, and ensure production readiness across performance, observability, security, and usability.

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.

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.

Build and maintain responsive, production-scale frontend web applications for an AI Receptionist product. Design UI for configuring conversational agents, integrate with backend services (APIs, WebSockets, streaming), optimize performance and accessibility, establish frontend architecture and best practices, and mentor engineers.

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

Lead cross-functional technical projects, design and review architectures, set coding standards and tooling, mentor engineers, drive quality through code reviews, and deliver full-stack SaaS features using PHP, TypeScript, React, and GCP services.

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

Looking for a Senior Front-End Developer with extensive Vue.js experience to enhance the Jibble 2.0 platform, collaborating closely with product teams.