Sr. Full Stack Java Developer (Hybrid)

Job Description Sr. Full Stack Developer – JavaAshburn, VA (Hybrid – 1 day onsite / 4 days remote) Must be a U.S. Citizen and currently reside in the Metro Washington, D.C. areaWe have an immediate full-time opening for an experienced Sr. Full Stack Java Developer to join an Agile Scrum team supporting a federal program. This role focuses on delivering releasable software in short sprint cycles while collaborating closely with developers, stakeholders, and end users.Key ResponsibilitiesDesign, develop, and implement custom software and database applications across legacy and modernized systemsCollaborate within an Agile Scrum team to deliver high-quality software in short sprint cyclesParticipate in sprint planning, backlog refinement, testing, demos, retrospectives, and releasesContribute to architectural and engineering standards refinementAnalyze complex technical challenges and develop innovative, scalable solutionsEnsure product quality, timeliness, and performance standardsMentor junior developers and support team growthSupport release planning and conceptual system designRequired QualificationsU.S. Citizen able to pass a CBP background investigation:3-year felony conviction check1-year illegal drug use check1-year misconduct check (e.g., theft or fraud)Bachelor's degree in Computer Science, Software Engineering, Information Systems, or related field (or equivalent experience)7+ years of hands-on software design, development, and implementation experience in a Windows environmentTechnical ExpertiseJava 8+ (strong OOP, data structures, algorithms)Spring Boot, Spring MVC, Spring Security (DI & AOP experience)RESTful API design (versioning, standards, documentation)Angular (deep expertise), TypeScript, JavaScript, HTML, CSSState management and UI performance optimizationTesting frameworks (JUnit, TestNG, Mockito)ORM frameworks (Hibernate or similar)SQL / PL-SQL (Oracle, MySQL, SQL Server)Object-Oriented Design & Development (OODD)Service-Oriented Architecture (SOA)Git-based source control and concurrent workflowsSDLC best practices (CM, QA, release management)Desired / Nice to HaveTechnical certifications (OCAJP, OCPJP, OCE/OCM, CSM)DoD 8570 certificationExperience with React, VMware, ETL tools, ESB, message queuingApplication security and automated testing experienceUML and enterprise modeling tools (e.g., Sparx EA)Jira, VersionOnePostgres or Aurora