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# Software Developer-Mid Career

- **Company:** Lawrence Livermore National Laboratory
- **Location:** Livermore, CA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Microsoft Windows, C++ (Programming Language), Computer Engineering, Software Debugging, Linux, Github, Python (Programming Language), Lua (Scripting Language), Systems Development Life Cycle, Software Engineering, Software Systems, Gitlab, Git, Information Technology
- **Published:** August 6, 2026
- **Apply:** https://us.experteer.com/career/view-jobs/software-developer-mid-career-livermore-ca-usa-58811877

## About the Role

_ stakeholder needs * Perform other duties as assigned * At SES.4 level: manage multiple complex tasks and priorities, design and maintain software systems, solve highly complex problems Tasks * Active DOE Q-level clearance or active Top Secret clearance * Bachelor in Computer Science, Computer Engineering, or related field * Advanced experience with C++ or Java and Lua or Python * Advanced experience developing software in Linux and Windows with full SDLC * Advanced experience with Git and GitLab/GitHub * Strong communication skills (verbal and written) for collaboration and advisement * Experience solving difficult problems with enthusiasm and creativity Key requirements * Flexible schedule * Flexible benefits package * 401(k) * Relocation assistance * Education reimbursement program * Hybrid work arrangement

## Description

Experteer Overview In this role you will contribute to building and maintaining the Argus security system within LLNL's Computing Directorate. You will work on a multidisciplinary team to design, implement, test, and optimize software for critical security-focused applications. The position emphasizes collaboration with sponsors and stakeholders to deliver robust, scalable solutions in a DOE program. This is a mission-driven opportunity to apply advanced software engineering to national security challenges. Compensation / Benefits * Collaborate on developing and implementing complex software engineering methods using industry practices and modern languages/OS * Guide project tasks from requirements to design, implementation, debugging, testing, and optimization * Contribute to multidisciplinary team goals and align with organizational objectives * Interact with developers, management, and sponsors to share knowledge and recommendations * Provide swift, creative technical solutions to stakeholder needs * Perform other duties as assigned * At SES.4 level: manage multiple complex tasks and priorities, design and maintain software systems, solve highly complex problems Tasks * Active DOE Q-level clearance or active Top Secret clearance * Bachelor in Computer Science, Computer Engineering, or related field * Advanced experience with C++ or Java and Lua or Python * Advanced experience developing software in Linux and Windows with full SDLC * Advanced experience with Git and GitLab/GitHub * Strong communication skills (verbal and written) for collaboration and advisement * Experience solving difficult problems with enthusiasm and creativity Key requirements * Flexible schedule * Flexible benefits package * 401(k) * Relocation assistance * Education reimbursement program * Hybrid work arrangement


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