Application Developer with Security Clearance

We are looking for an experienced and highly skilled Application Developer to design, build, and modify application software using programming languages such as Java, ColdFusion, JavaScript, and C#.  Implement multiple design patterns. Integrate COTS products, use APIs, interact with data repositories, cross-domain solutions, and manage system interfaces. Manage legacy code and/or develop new code using container technologies. Develop and execute unit tests to verify code meets functional requirements. Resolve integration issues, vulnerabilities, and functional defects. This position will be on-site in Merrifield, VA. -Develop and maintain secure, scalable Java applications supporting cross-domain data exchange in compliance with federal standards. -Collaborate with system architects, cybersecurity teams, and government stakeholders to implement mission-critical features. -Integrate with enterprise services and APIs, ensuring secure communication across multiple classification levels. -Participate in Agile ceremonies and contribute to sprint planning, backlog grooming, and technical reviews. -Write clean, well-documented code that adheres to federal security and software development lifecycle (SDLC) guidelines. -Support modernization efforts by refactoring legacy systems into cloud-native, containerized Java applications. -Conduct unit and integration testing and assist in automated deployment using CI/CD pipelines. -Troubleshoot and resolve technical issues across development, staging, and production environments. -Collaborate with cross-functional teams to ensure interoperability, data integrity, and compliance with cross-domain solution (CDS) policies. Required: -Bachelor’s degree in computer science, Engineering, or related field (or equivalent experience). -Active Secret clearance -5+ years of professional experience in Java development, preferably in federal or defense contracting environments. -Strong knowledge of Java SE/EE, Spring Boot, and RESTful services.