Mid Java Developer

Build More Than Software – Build the Future

Are you ready to elevate your career and make a real-world impact? Peraton is seeking a Java Developer to help build Web and backend application/services for a credentialing/case management system using Java/Spring-based REST APIs along with a Web 2.0 framework in a continuous integration environment. The candidate will join our team of developers building the next generation of customer engagement systems for federal service agencies.

Join our high-performing team supporting the Department of Homeland Security (DHS). This role plays a vital part in developing and sustaining a mission‑critical, large‑scale Java application development that directly supports national transportation security initiatives. The ideal candidate will bring experience in Java development. If you are passionate about solving complex technical challenges, expanding your expertise in Java development, and working on projects that deliver real‑world impact—we encourage you to apply.

Hybrid role– On‑site in Columbia, MD.

• Hybrid. On‑site presence in Columbia, MD is required for a minimum of three days per week. There are NO exceptions. Candidates must maintain flexibility to report on‑site up to five days per week based on project or business needs.

• Bachelor’s degree and 5+ years of IT experience, or associate’s degree and 7 years’ experience, or high school diploma/equivalent and 9 years’ experience.
• US Citizenship required
• Must have an Active Secret clearance to be considered
• 5 years of recent demonstrable experience developing and implementing software solutions to build enterprise applications using the following:
• React
• HTML
• CSS
• Java Script
• Spring Boot
• 2+ years of experience with using the following Java development tools:
• Eclipse
• Git/GITLAB

• 8+ years of experience developing and implementing software solutions to build enterprise applications adhering to Agile principles.
• 1-2 years’ experience using Redux.
• Knowledge of database schema design, Microsoft SQL Server, Transact‑SQL (T‑SQL).
• 3 years of work experience with Linux/Unix shell scripting, for example:
• Korn Shell (ksh)
• Bourne Again Shell (Bash)
• C shell (csh)
• Knowledge of JSON Web Token (JOTS).
• Knowledge of Drools – a Java-based Business Rule Management System (BRMS).
• Knowledge of Jakarata Persistence API (JPA), Object/Relational Mapping (ORM), Spring JPA, Hibernate.
• Previous work in a large‑scale Federal IT Program.

• Support full life‑cycle development of a large enterprise Java applications.
• Develop, enhance, and support a high‑availability, enterprise‑scale Java applications.
• Perform data analysis and develop logic for integrating and reconciling complex data sources.
• Design and implement clean, responsive user interfaces and work‑flows.
• Support mobile application development and ensure modern, scalable code standards.
• Collaborate with cross‑functional teams to implement CI/CD pipelines and develop best practices.
• Design and implement modern, intuitive user interfaces and data reporting tools.
• Analyze, reconcile, and consolidate multi‑source data.
• Collaborate in an Agile environment with continuous integration pipelines.
• Contribute to mobile application development and cross‑functional team goals.