Senior Full Stack Software Developer: EST timezone

BG Workforce Solutions is seeking a motivated and experienced Senior Full Stack Software Developer to support high-impact Department of War technology initiatives in the United States and abroad. This role is pivotal in supporting C-level leadership by designing and delivering mission-critical software solutions for the U.S. Military and its partners, spanning ReactJS front-end development through .NET Core back-end architecture. The ideal candidate combines strong front-end craftsmanship with robust back-end engineering, thrives in secure environments, and communicates clearly across technical and executive audiences. Prior experience on government or defense-related programs is highly desirable. KEY RESPONSIBILITIES FRONT END (REACTJS) ■ Design, develop, and maintain scalable, secure user interfaces using ReactJS. ■ Own all stages of interface component design, from conception through execution. ■ Translate UX wireframes and mockups into reusable, efficient, and scalable components. ■ Use libraries such as Redux, TanStack Query, and React Router to manage application state, derive computed data, and handle asynchronous API calls. BACK END (.NET CORE) ■ Design, develop, and maintain scalable, secure applications using .NET Core. ■ Develop RESTful APIs, microservices, and integrations with third-party systems. ■ Work with relational databases (SQL Server, PostgreSQL) to support application data needs. ■ Support deployment of solutions to cloud environments (Azure/AWS) and help ensure high availability. CROSS-FUNCTIONAL & LEADERSHIP ■ Collaborate with product owners, project managers, and system architects to translate business requirements into robust technical solutions. ■ Implement and enforce engineering best practices, including code reviews, testing, and documentation. ■ Ensure applications meet strict DoW cybersecurity and compliance standards. ■ Mentor junior developers and contribute to the growth of the engineering team. ■ Provide technical updates and recommendations directly to C-level executives. ■ Participate in Agile ceremonies, including sprint planning, estimation, and retrospectives. ■ Contribute ideas to process refinements and adhere to company branding and documentation standard Required Qualifications CITIZENSHIP & CLEARANCE ■ U.S. Citizenship required. ■ Must pass a strict background check. ■ Must be eligible to obtain and maintain a Secret-level security clearance. EXPERIENCE ■ 5+ years of professional software development experience. ■ 3+ years of professional experience with React.js, including hooks, state management, and performance optimization. ■ Proven experience with .NET Core for building APIs and back-end services. ■ Highly proficient in JavaScript, modern JavaScript, HTML, CSS, and responsive design. ■ Proficient with one or more state/routing libraries (Redux, TanStack Query/Router, React Router, etc.). ■ Experience with relational databases (SQL Server, PostgreSQL). ■ Familiarity with CI/CD pipelines, Git, and Agile/Scrum practices. EDUCATION ■ Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience). KNOWLEDGE & SKILLS ■ Strong understanding of modern full-stack application development. ■ Familiarity with secure coding practices and DoW cybersecurity requirements. ■ Excellent problem-solving, analytical, and communication skills. ■ Ability to lead technical initiatives and mentor junior engineers. ■ Proficient in Microsoft Office Suite and development collaboration tools. ■ English language proficiency. DESIRED SKILLS & CERTIFICATIONS ■ TypeScript, Redux, and TanStack (Query/Router) experience. ■ Cloud deployment experience (AWS/Azure). ■ Docker/Kubernetes knowledge. ■ Familiarity with automated testing frameworks (Jest, xUnit, Playwright). ■ Prior DoW/DoD development experience or military background a strong plus. WORK ENVIRONMENT ■ Remote position; must be able to work within the Eastern Time Zone. ■ Ability to work independently with minimal supervision. ■ Must maintain a home office in compliance with company standards. ■ Flexible hours, with 401(k), health, and dental options for full-time employment This critical position offers strong growth potential, especially for candidates eager to contribute their technical expertise in support of national defense.