Top Front End Developer Jobs in Toronto

Lead the development of complex frontend features using React and TypeScript, ensuring quality, accessibility, and performance while mentoring others and managing deployments.

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.

Develop crafted, intuitive interfaces, improve UI/UX quality, and collaborate with product teams. Engage with customers for feedback and mentor future 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.

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

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 role involves designing and developing mobile applications using React Native, collaborating with teams, and maintaining high code quality. Responsibilities include debugging, implementing new technologies, and mentoring peers.

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 ship full-stack features for North, develop autonomous agents that access sensitive enterprise data, productionize state-of-the-art models, write minimal, secure low-resource code, and collaborate with researchers to deploy performant RAG/agentic applications while prioritizing security and user experience.

As a Frontend Engineer, you'll craft user interfaces, write engineering requirement documents, build test suites, and integrate analytics for product success.

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

Lead the development of front-end features for an AI-powered platform, focusing on usability and performance while guiding a small engineering team.

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

The Front End Java Developer will design and implement web applications, develop back-end services, and work in a team to enhance system efficiency and performance.

Build and optimize frontend signup and activation experiences using modern JavaScript and TypeScript. Collaborate with product, design, and analytics to implement high-converting, accessible, and performant user flows, own features from design through implementation, and participate in experimentation and personalization to improve conversion.

Own and scale quality infrastructure for web engineering during the migration from a monolith to microfrontends. Build shared testing frameworks, tooling, CI/CD quality gates, and metrics; shift coverage toward unit, component, integration, and contract tests; enable AI-driven testing workflows and agent verification; mentor engineers and drive adoption of quality practices across teams.

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.

The role involves designing, developing, and maintaining secure software for a public-facing web portal, ensuring user experience, compliance with standards, and conducting testing and documentation.

Develop and maintain cross-platform React/TypeScript web and mobile UIs from a shared codebase. Build reusable, accessible design-system components, integrate Contentful CMS, consume BFF/orchestration APIs, apply NativeWind/Tailwind styling and design tokens, ensure WCAG 2.2 compliance, support Azure-hosted deployments, testing and CI/CD, and collaborate in Agile with product, design, and backend teams.

Lead front-end technical delivery for web and mobile experiences using React and TypeScript. Design and implement reusable, accessible design-system components, integrate Contentful CMS and BFF/REST APIs, enforce CI/CD and quality gates, drive performance and observability, and provide technical leadership across cross-functional squads to improve delivery, accessibility, security, and maintainability.

As a Front-End Web Developer, you'll create responsive web applications, collaborate with designers and back-end developers, optimize user interfaces, and implement reusable components.

The Front-End Software Engineer collaborates with teams to create user interfaces, applying design principles and programming skills with Ruby on Rails and JavaScript. Responsibilities include building responsive applications, enhancing design systems, and optimizing performance.

Seeking Front-End Software Engineers to collaborate in developing and maintaining UI for Veeva's cloud-based applications, utilizing their extensive experience with modern JavaScript frameworks and Java stack development.

The role involves building and maintaining the UI of cloud-based applications using modern JavaScript frameworks, collaborating with cross-functional teams, and contributing to the software development life cycle.

As a Front-End Software Engineer, you will develop cloud-based applications using React and JavaScript in a fast-paced environment, collaborating with teams and mentoring others.