> Markdown version of [/jobs/ext/3975033-software-engineer-sr-stf](https://www.wearedevelopers.com/jobs/ext/3975033-software-engineer-sr-stf). 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 Stf - **Company:** Lockheed Martin - **Location:** Herndon, VA, United States - **Experience:** Expert - **Salary:** $148,300.0 - $275,500.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, Artificial Neural Networks, JIRA, Unit Testing, Bash Shell, C++ (Programming Language), Client Access Licensing, CMake, Configuration Management, Cyber Security, Computer Programming, System Configuration, Software Debugging, Linux, Distributed Systems, Perl (Programming Language), Fortran (Programming Language), Make (Software), Java GUIs, Python (Programming Language), Korn Shell, Red Hat Enterprise Linux, Software Engineering, Subversion, Supercomputing, Data Storage Technologies, High Performance Computing, Git, Selinux, Modeling and Simulation, Codebase, Software Coding, Multiplatform, Software Version Control - **Published:** October 27, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-engineer-sr-stf-herndon-va--0280ab66-ba73-4d73-b29e-90a56babc9a0 ## About the Role Software Engineering, Cost Control, Process Improvement, Supercomputing, Security-Enhanced Linux (SELinux), Red Hat Linux Operating System, Best Practices, Federal Government, Leading Edge Technology, Problem Solving Skills, * Bachelor''s degree in STEM related discipline and a minimum of 8+ years of professional level experience * Around 5 years of experience developing and using modeling and simulation software in heterogeneous, multi-platform environments * Working with HPC users workflow for mod/sim problems and GUIs * Knowledge of High Performance Computing (HPC) environment and related technologies * Demonstrated proficiency with BASH and Korn * Linux Operating System proficiency, ability to solve end-user computer system problems while working independently in a lab environment. * Top Secret/SCI level with a ci poly required to start the role Desired Skills * Demonstrated proficiency with Fortran, C, and/or C++ * Revision control software (CVS, SVN, Git) * Build/install tools (e.g. CMake, Makefile, autoconf) * Strong ability to analyze, debug, and maintain the integrity of an existing code base * Demonstrated proficiency in software development process including requirements, use cases, design, coding, documentation and testing of scalable, distributed applications in a Linux environment * Experience with Python and Perl * Agile process and JIRA * AI/ML/Neural Networks experience * Proficiency in basic software practices such as coding standards, unit testing, and configuration management * A results-oriented team player, creative thinker, and problem-solver with strong communication skills * Superior programming skills and excellent attention to detail * Good organizational skills to balance and prioritize work * Proficient in AI prompting as it applies to this position and practice ## Description We are seeking a mid-career level HPC Software Engineer who will work on a HPC Research and Development (R&D) customer contract. The candidate will be an active member of the Technical User Support (TUS) team, interacting with the team, TUS team lead, program Chief Scientist, Customers, users, and focused on a specific R&D customer. The TUS team is responsible for working with HPC users to achieve faster "time to science". You will work closely with the users to port, optimize, and parallelize codes to the users' requirements. This position will be focused on a specific customer supporting their workflow, modeling and simulation, and data requirements and working with the program Chief Scientist, TUS team lead, and others to design and implement solutions to meet the customer's requirements. You will also be involved in system performance analysis through benchmarking, tuning libraries, and generally focused on scientific modeling, numerical processes, and other scientific software and workflow issues. You will investigate, analyze, and make recommendations regarding user codes and other HPC software issues. The work will be done using best practices needed to take full advantage of the program's HPC resources, research storage systems, and secure computing environment. You will also be responsible for providing end-user support for login procedures, thin-client access, desktop/workspace familiarization, and modeling and simulation software environment setup on RHEL/SE Linux HPC systems. This support helps users adapt to a production shared resource, its scheduling system, and its high-performance data storage systems.