> Markdown version of [/jobs/ext/3799781-software-engineer-sr](https://www.wearedevelopers.com/jobs/ext/3799781-software-engineer-sr). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer Sr

- **Company:** Lockheed Martin
- **Location:** Manassas, VA, United States
- **Experience:** Expert
- **Salary:** $110,300.0 - $204,900.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Databases, Middleware, JavaFX, Java Management Extensions, PostgreSQL, MongoDB, Performance Tuning, Rxjava, Software Systems, Multithreading, Ios Frameworks, Kotlin, Containerization, Kubernetes, Information Technology, Reactive Programming, Asynchronous Programming, Grpc, Code Restructuring, Docker
- **Published:** October 17, 2026
- **Apply:** https://www.juju.com/job/1_lockheedmartin2-9178

## About the Role

Our flexible schedules, competitive pay and comprehensive benefits enable you to live a healthy, fulfilling life at and outside of work. \#WeAreLM #WherethebestareBuilt #OneLMHotJobsimportant **Basic Qualifications** + Bachelor's degree in Computer Science, Software, Computer, Electrical Engineering, or a related STEM discipline with 4+ years of relevant experience. + Proven Java development experience, including multithreading. + Strong Linux/Unix development, integration, and troubleshooting background. + Ability to integrate, test, troubleshoot, and refactor software systems. **Desired Skills** + Advanced Java multithreading experience + UI frameworks: JavaFX / Swing + Database experience (MongoDB, PostgreSQL, or comparable) + Inter-process messaging middleware (gRPC, Artemis) + Performance-tuning tools (JVisualVM, JConsole, JProfiler) + Reactive programming (RxJava, Kotlin Coroutines, Flow) + Containerization/orchestration (Docker, Kubernetes, etc.) +