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# Java Developer

- **Company:** Indotronix International Corporation
- **Location:** Manassas, VA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Bash Shell, Unix, Configuration Management, Computer Programming, Databases, Linux, Design of User Interfaces, Human-Computer Interaction, JavaFX, Java Management Extensions, Java Web Services, PostgreSQL, MongoDB, Performance Tuning, Rxjava, Software Licensing Audit, Software Engineering, Software Systems, Systems Integration, Multithreading, Software Troubleshooting, Reliability of Systems, SC Clearance, Kotlin, Containerization, Kubernetes, Information Technology, Reactive Programming, Codebase, Asynchronous Programming, Grpc, Code Restructuring, Docker
- **Published:** November 6, 2026
- **Apply:** https://www.careerbuilder.com/job-details/java-developer-manassas-va--67847fca-f4a8-43e8-abfb-a06de1ebd49b

## About the Role

Java, Software Engineering, Java, Linux Operating System, User Interface/Experience (UI/UX), Unix Operating Systems, Software Engineering, Team Building, Performance Tuning/Optimization, Multithreaded Programming, * B.S. degree in Computer Science, Software/Computer/Electrical Engineering, or related STEM field

 * 2+ years of hands-on Java development, including multithreading
 * Strong Linux/Unix development, integration, and troubleshooting background
 * Proficient in software integration, testing, and refactoring
 * US Citizenship and ability to obtain/maintain DoD Secret clearance (required)
 * Experience with Bash scripting

Preferred Skills

 * Advanced Java multithreading proficiency
 * Database experience with MongoDB, PostgreSQL, or similar
 * Familiarity with inter-process messaging (gRPC, Artemis)
 * UI development using JavaFX or Swing
 * Knowledge of reactive programming (RxJava, Kotlin Coroutines, Flow)
 * Performance-tuning tools (JVisualVM, JConsole, JProfiler)
 * Containerization and orchestration (Docker, Kubernetes)
 * Agile full-lifecycle development experience
 * 3+ years in Linux, scripting/software development, and configuration management, Ready to advance your Java development career in a high-impact sector? Apply now by submitting your updated resume. Candidates must be authorized to work in the United States and be able to obtain/maintain a DoD Secret clearance., Skills Candidates must be able to obtain and/or maintain a Department of Defense Secret clearance as a condition and continuation of employment Strong Linux/Unix development integration and troubleshooting background· Proven Java development experience including multithreading· Ability to integrate test Troubleshoot and refactor software systems

## Description

Join a high-impact team building critical software solutions for defense and national security. As a Java Developer, you will leverage your Linux/Unix expertise and Java development skills to design, integrate, and enhance mid-to-front-end applications. This role offers exposure to advanced technologies and a clear path for career growth in a secure, mission-driven environment.

Responsibilities

 * Develop, test, and maintain Java-based applications with a focus on multithreading and performance optimization
 * Integrate and troubleshoot software systems within Linux/Unix environments
 * Refactor legacy codebases to improve system reliability and scalability
 * Collaborate with cross-functional teams to deliver robust software solutions
 * Participate in the full software development lifecycle using Agile methodologies
 * Ensure software compliance with Department of Defense standards and security protocols