Sr Full Stack Developer – Node.js / React - REMOTE - Must be USC

Federal Client requires US CitizenshipWork Location: Remote, Arlington, VAExperience/Skills: Federal Client requires US citizenship. 10+ years of overall experience required for this Senior level position. 3+ years of professional software development experience with JavaScript andTypeScript. 3+ years of production React or modern component-based UI framework development. 3+ years of Node.js backend development, including experience building APIs andservice layers. 3+ years of experience with Microsoft cloud services (Microsoft Graph, SharePointREST APIs, and/or Azure). 3+ years of experience designing and implementing RESTful APIs with properauthentication and authorization patterns. 3+ years of hands-on experience with CI/CD pipelines, source control (Git), and codereview processes. Experience integrating with Office JavaScript APIs and building applications that extendMicrosoft 365 services. Strong verbal and written communication skills with the ability to explain technicalconcepts to both technical and non-technical stakeholders. Demonstrated ability to produce clear technical documentation and design specifications.Certification(s): PL-900 (Microsoft Power Platform Fundamentals) – Required by start date PL-100, PL-200, or Copilot-related certifications - Preferred