4304 Software Developer with Security Clearance

OVERVIEW: We are seeking a highly skilled Software Developer to join a team developing, testing, and deploying secure operational applications, networks, and platforms. Qualified candidates will have expertise in .NET Core and Entity Framework. This role is 100% on-site in Huntsville, AL or in Quantico, VA supporting a mission focused customer. You work within an Agile/Scrum environment alongside other contractors and collaborate with teammates located both in Huntsville and Quantico. GENERAL DUTIES: * Design, develop, test, secure, and deploy enterprise applications. * Serve as the last line of defense for troubleshooting; perform deep diagnostics and root-cause analysis for production and integration issues. * Lead solution architecture discussions (including microservices), code reviews, and technical decision-making. * Implement and refine CI/CD pipelines and branching strategies; enforce coding standards and quality gates. * Optimize performance at app, service, and database layers; design resilient integrations and rigorous error-handling. * Mentor team members; model Agile/Scrum best practices and iterative delivery. * Collaborate effectively with a distributed team and cross-functional partners. * Produce clear technical documentation and contribute to security/compliance artifacts. REQUIRED QUALIFICATIONS: * Bachelor's degree in Software Development, Computer Science, or related field and 5+ years of software development experience; or in lieu of degree: 10+ years of software development experience at or above the senior level described. * Technical stack (hands-on): * Languages/Frameworks: C#, ASP.NET, .NET Core, XML, WPF, HTML, JavaScript, XML, Entity Framework. • * Data: Microsoft SQL Server (schema design, queries, indexing, performance tuning). * Frontend: Angular (or Vue/React/Ember in lieu of Angular, commensurate with experience) * Architectures: Microservices Architecture. * Tools/DevOps: Jira, Git, Git-based CI/CD (build/release pipelines, automated testing). * Scripting/Automation: PowerShell (build, deployment, admin automation). * Proven expertise diagnosing complex production issues end-to-end (client, API, data, infra). * Demonstrated leadership traits: initiative, ownership, calm under pressure, and high-level critical thinking. * Strong communication skills for cross-site coordination and stakeholder updates. DESIRED QUALIFICATIONS: * Performance profiling and memory/CPU diagnostics for .NET and SQL Server. * Experience with message brokers/queues, RESTful API design, and contract testing. * Prior work on mission programs and familiarity with on-prem environments. * Cloud certification CLEARANCE: * Top-Secret clearance and the ability to obtain SCI access with a CI polygraph.