Top React Developer Jobs in Toronto

As a React Engineer, you will build responsive user interfaces and collaborate with cross-functional teams to enhance the user experience through performance optimization, integration with APIs, and adhering to accessibility standards.

As a React Engineer, you'll build responsive user interfaces for web applications, optimizing performance and integrating with APIs while ensuring accessibility and SEO best practices.

The Senior React Developer will create full-stack web and mobile applications, optimize performance, collaborate with teams, and conduct code reviews. Requires over five years of experience in software development, focusing on React and Firebase.

Senior Software Engineer responsible for developing and maintaining web applications and microservices (React, Golang). Mentor team members, lead code reviews, influence technical decisions, improve CI/CD and testing strategies (unit, E2E, performance), collaborate across teams on integrations, and promote engineering best practices and documentation.

Lead design and development of scalable, cloud-native financial and reconciliation systems on GCP. Own architecture, drive technical decisions, mentor engineers, embed AI and automation, collaborate with product and QA, and ensure reliability, performance, and test automation.

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.

Develop and maintain mobile applications using React Native, collaborate with cross-functional teams, and optimize applications for performance and user experience.

Lead design, implement, and maintain a scalable SaaS insurance platform across front-end and back-end. Provide technical direction, mentor developers, enforce best practices, optimize performance, ensure security and compliance, and drive adoption of modern architectures and testing methodologies.

The Java Full Stack Developer will design, develop, and maintain scalable web applications using Java and React, ensuring effective integration between front-end and back-end components while collaborating with UI/UX designers and participating in Agile teams.

The Java Full Stack Developer will develop backend services, design Microservices, and build responsive UIs with React.js, ensuring integration and performance optimization.

Join Zensurance as an Intermediate Software Developer to build software for data collection and pricing engines using Node.js and TypeScript. Responsible for feature implementation, system performance monitoring, and mentoring junior developers while ensuring high-quality outputs.

The Senior Software Engineer will develop software by writing clean, efficient code, automate tasks, and collaborate with teams to enhance products, emphasizing TDD and API development.

Lead the development of cloud-native enterprise applications using React and AWS, mentor team members, collaborate with stakeholders, and optimize solutions.

The React Full Stack Developer will design, develop and maintain web applications, leveraging expertise in Java and JavaScript frameworks, specifically React, along with deep knowledge of cloud-native application development and microservices architectures.

Join a cross-functional team to develop data products, write efficient code, influence AI roadmap, and collaborate with diverse professionals.

The role involves designing and developing front-end and back-end components, mentoring team members, ensuring system efficiency, and optimizing platform performance in a collaborative team environment.

Join a small engineering team to build and maintain full stack web applications and backend services using React, Python, Go, C++, PostgreSQL, and AWS. Contribute to APIs, responsive frontends, CI/CD, monitoring, debugging, and engineering best practices while collaborating on cloud-native distributed systems.

Lead design, development, and maintenance of high-performance React Native mobile apps for iOS and Android. Build shared UI components, collaborate with backend/product/design teams, mentor engineers, optimize performance, and research new technologies to deliver scalable, production-grade mobile experiences.

The Senior Full-Stack Developer will work closely with the co-founders to develop telehealth features, focusing on user-friendly software that's reliable and robust. They'll participate in code testing, deployment, and feature design within a collaborative office environment.

Design, build, test, and release cross-platform React Native apps for iOS and Android. Translate Figma designs to pixel-accurate interfaces, integrate REST/GraphQL APIs, implement auth, offline storage, and push notifications. Debug native modules, manage build/release pipelines, ensure performance and security, write clean TypeScript/JavaScript, and collaborate with backend, QA, and product through code reviews and agile ceremonies.

The Senior React Native Developer will design, build, and ship cross-platform mobile apps, ensuring high performance and reliability while collaborating with various teams.

Lead development of cross-platform mobile applications using React Native, integrating APIs and hardware. Collaborate with teams and optimize performance across platforms.

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

The Mobile Developer (React Native) will build high-quality cross-platform mobile applications, participate in testing, and collaborate with the development team.

Build the new ShareGate Migrate web app as a senior full-stack developer using React, TypeScript, and C#/.NET. Ship full-stack features, shape technical choices, integrate Microsoft APIs (Graph, Azure AD/Entra ID, MSAL), mentor teammates, anticipate risks, and use AI-assisted development tools to accelerate delivery and quality.