App Developer/Fullstack Engineer - Top Secret

Zachary Piper Solutions is seeking an App Developer (multiple positions open for a range of experience levels) to support a national leading aerospace and global security program!The role is fully on site in King of Prussia, PA. This position offers extensive opportunity for long term growth and career development, as well as the opportunity to be part of a team of highly accomplished Software Developers. Responsibilities of the App Developer: Apply the appropriate standards, processes, procedures, and tools throughout the development life cycle. Apply knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software. Correct program errors, compiling documentation of program development, and analyzing system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls. Ensure software standards are defined and met. Required Qualifications of the App Developer: *Active TS (Top Secret) OR TS/SCI Clearance REQUIRED* 2 + years of relevant experience in Java 2+ years of experience in either front-end or fullstack development Experience with DevSecOps, Angular, or Kubernetes is a plus! Ability to work with XML Proven experience in COTS/FOSS integration and support Ability to troubleshoot and navigate multiple operating system environments including LINUX/Windows Bachelors' degree Compensation for the App Developer: Salary Range: $150,000-$195,000 depending on experience Full Benefits Package: PTO, Paid Holidays, Medical, Dental, Vision, 401K, Tuition Reimbursement This job was posted on September 18, 2026 and will be open for 30 days after posting date. #LI-AK #LI-Remote #LI-REMOTE Keywords: Front End Developer, Frontend Developer, UI Developer, Web Developer, Web Application Developer, Software Developer, Software Engineer, Application Developer, Application Engineer, Application Software Developer, App Developer, AppDev, Full Stack Developer, Full-Stack Engineer, Software Programmer, Application Programmer, Programmer Analyst, Software Development, Application Development, Angular, AngularJS, Java, Java EE, J2EE, Jakarta EE, Java Developer, Java Engineer, Java Software Engineer, Spring, Spring Boot, Spring MVC, Spring Framework, DevSecOps, DevOps, CI/CD, Jenkins, Git, GitLab, GitHub, Docker, Kubernetes, OpenShift, Front-End, Frontend, Program Development, COTS, Commercial Off-the-Shelf, FOSS, Open Source, Software Integration, Systems Integration, Application Integration, XML, XSLT, XPath, XSD, JSON, REST, RESTful, REST API, API, Microservices, Maven, Gradle, Hibernate, JPA, JDBC, JavaScript, TypeScript, HTML, HTML5, CSS, CSS3, UI, GUI, Web UI, Single Page Application, SPA, Linux, RHEL, Red Hat, Red Hat Enterprise Linux, Unix, Windows, Windows Server, Bash, Shell, SQL, PostgreSQL, Oracle, MySQL, Top Secret, TS, TS/SCI, SCI, Active TS, Active Top Secret, Security Clearance, Cleared, Cleared Software Engineer, Cleared Java Developer, Intelligence Community, IC, DoD, Federal, NGA, National Geospatial, Top Secret, Cleared, TS, Geospatial #J-18808-Ljbffr Zachary Piper Solutions