Top Front End Developer Jobs in Toronto

The Senior Staff Software Engineer will lead web platform architecture and development, mentoring engineers while driving improvements in infrastructure, web development strategy, and AI tool integration.

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.

Design, build, test, and maintain web and cross-platform mobile applications using React, React Native, and TypeScript. Drive architecture, CI/CD, automated testing, secure scalable solutions, and collaborate within Agile teams to deliver high-quality customer-facing products.

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.

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 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.

Own and deliver high-availability, low-latency Trust & Safety systems across backend, web, and mobile. Lead engineering delivery, collaborate with product/design/analytics, improve operational metrics and on-call reliability, set code and design standards, and mentor teammates.

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.

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.

Develop modern web applications focusing on UI components using React while ensuring performance, accessibility, and cross-browser compatibility.

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 high-performance, scalable Angular front-end web applications. Implement UI interactions, client-side architecture, consume REST APIs, perform prototyping, code reviews, unit testing, and apply secure, cloud-native and CI/CD practices. Collaborate cross-functionally and contribute to both visual and server-side integration.

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

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.

Design and implement front-end web applications by converting .NET UI elements to React/HTML5 using Citi standard components. Deliver timely front-end design and code, perform automated testing, integrate with APIs, analyze complex problems, advise stakeholders, mentor junior staff, and ensure security, compliance, and operational support across development lifecycle.

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.

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.

Build and maintain frontend services and components for Lyft's micromobility operations tooling. Define roadmap and architecture, write well-tested maintainable code, lead projects, participate in code reviews and incident response, collaborate with cross-functional teams, and evangelize engineering best practices to improve operator workflows and platform performance.