Senior React Developer

We are looking for a senior external React Developer who can design and deliver modern, accessible and production-ready web applications, establish sound front-end engineering practices and coach other developers. Role and engagement model Act as the senior React engineering specialist within a cross-functional Customer Platforms team Own front-end solution components from technical design through implementation, testing, deployment and stabilization Provide practical guidance on architecture, code quality, reusable patterns and integration with Microsoft cloud services Key Responsibilities Design and build responsive React applications and reusable component libraries using TypeScript Apply modern React patterns including functional components, hooks, state management and modular architecture Integrate front ends with REST APIs and Microsoft services using secure authentication and authorization patterns Implement automated unit, component and end-to-end tests and support quality gates in CI/CD pipelines Optimize applications for accessibility, browser compatibility, performance, observability and maintainability Conduct code reviews, identify technical debt and guide sustainable remediation Collaborate with UX, architects, backend developers and business stakeholders Create concise technical documentation and transfer knowledge to internal developers Requirements Mandatory experience 7+ years of software development experience with substantial recent delivery experience in React and TypeScript Proven ownership of production React applications and scalable front-end architecture Strong knowledge of component design, state management, API integration and asynchronous programming Hands-on experience with automated testing frameworks and front-end build tooling Experience with Git, pull requests, code reviews, Azure DevOps and CI/CD pipelines Strong understanding of accessibility, responsive design, performance and secure web development Professional English and the ability to explain technical decisions clearly Preferred Experience Experience with Microsoft Entra ID, Azure App Service, Azure Functions or API Management Experience integrating React applications with Dataverse, Dynamics 365 or Power Platform solutions Experience with design systems, UI libraries and application telemetry Experience with Software Test Show more