Senior Software Developer (Top Secret Cleared)

Everforth ECS is seeking a cleared Senior Software Developer (Top Secret Cleared) to design, build, test, integrate, maintain, and support secure applications for classified and sensitive law enforcement, national security, and criminal justice programs within the National Security Business Unit. The role is based in Washington, DC. Please note: this position is contingent upon contract award. Responsibilities Design, develop, test, integrate, document, and maintain secure software applications. Build application features, APIs, interfaces, database components, scripts, and reporting capabilities. Participate in Agile ceremonies, backlog refinement, sprint planning, demos, and retrospectives. Support test planning, release preparation, production deployment, troubleshooting, and defect resolution. Ensure application changes are secure, maintainable, properly documented, and aligned with change management practices. Collaborate with product owners, analysts, testers, system engineers, cybersecurity staff, and operations teams. Mentor developers, testers, and application support personnel on coding, troubleshooting, documentation, and release support. Identify opportunities for application modernization, workflow improvement, integration, automation, and technical debt reduction. Required Skills Active Top Secret clearance with SCI eligibility; TS/SCI preferred. 8+ years of software development experience. Experience with .NET, C#, Java, Python, JavaScript, SQL, APIs, database development, source control, and testing. Knowledge of secure coding, Agile delivery, DevSecOps concepts, documentation, and production support. Experience troubleshooting application issues and supporting releases. Ability to collaborate across technical, security, operations, and mission teams. Desired Skills Agile/Scrum, SAFe, DevSecOps, secure coding, cloud, database, or related certification. Experience with SQL Server, Oracle, PostgreSQL, SharePoint, Azure DevOps, Git, case management, content management, or reporting platforms. Experience supporting classified, law enforcement, national security, criminal justice, defense, or intelligence environments. Experience mentoring developers and contributing to solutioning, modernization, or account growth. Salary $145,000 – $155,000. Equal Opportunity Statement ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis of any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law. #J-18808-Ljbffr ECS Limited