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 modelAct as the senior React engineering specialist within a cross-functional Customer Platforms teamOwn front-end solution components from technical design through implementation, testing, deployment and stabilizationProvide practical guidance on architecture, code quality, reusable patterns and integration with Microsoft cloud servicesKey ResponsibilitiesDesign and build responsive React applications and reusable component libraries using TypeScriptApply modern React patterns including functional components, hooks, state management and modular architectureIntegrate front ends with REST APIs and Microsoft services using secure authentication and authorization patternsImplement automated unit, component and end-to-end tests and support quality gates in CI/CD pipelinesOptimize applications for accessibility, browser compatibility, performance, observability and maintainabilityConduct code reviews, identify technical debt and guide sustainable remediationCollaborate with UX, architects, backend developers and business stakeholdersCreate concise technical documentation and transfer knowledge to internal developersRequirementsMandatory experience7+ years of software development experience with substantial recent delivery experience in React and TypeScriptProven ownership of production React applications and scalable front-end architectureStrong knowledge of component design, state management, API integration and asynchronous programmingHands-on experience with automated testing frameworks and front-end build toolingExperience with Git, pull requests, code reviews, Azure DevOps and CI/CD pipelinesStrong understanding of accessibility, responsive design, performance and secure web developmentProfessional English and the ability to explain technical decisions clearlyPreferred ExperienceExperience with Microsoft Entra ID, Azure App Service, Azure Functions or API ManagementExperience integrating React applications with Dataverse, Dynamics 365 or Power Platform solutionsExperience with design systems, UI libraries and application telemetryExperience with Software Test