Software Engineer Sr Staff

Company: Lockheed Martin
Location: Simla
Posted on: March 16, 2026

Job Description:

Job ID: 716742BR Date posted: Feb. 03, 2026 Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation. And we're reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin provides Red Hat Enterprise Linux (RHEL)/SE Linux based HPC services throughout the lifecycle for computational requirements, architecture, acquisition, and operations to federal government customers. Our employees embrace innovation and are committed to a culture of continuous, standards-driven process improvement and assimilation of industry best practices. The program provides key supercomputing capabilities for solving important problems in science and technology. This work involves working on cutting edge HPC technologies to ensure that scientists and engineers will be able to fully utilize modern HPC systems. We are seeking a mid-career level HPC Software Engineer that will work in a High Performance Computing (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 site staff while on-site with 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. You will mentor junior members of the TUS and broader HPC teams, providing technical guidance, code?review sessions, and career?development advice. You will also design and deliver training workshops, tutorials, and documentation to help end?users and internal staff adopt HPC tools, best?practice coding standards, and performance?tuning techniques. This position will be on-site with a specific customer focused on 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 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 are also responsible for helping users adapt to a production shared resource, its scheduling system, and its high performance data storage systems. An individual should have demonstrated their flexible, adaptive, problem-solving ability. In order to be successful in this role, you will have a degree (BS) in a STEM related discipline with solid mathematics and/or physics background and experience in some combination of modeling and simulation, Fortran and/or C languages, Python, Korn, BASH, and/or Perl scripting, compilers, software benchmarking, system analysis, algorithm and/or software design. LI-CS1 Basic Qualifications: • Bachelor's degree in STEM related discipline and a minimum of 10 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 Fortran, C, and/or C++ • 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. • Proficiency in basic software practices such as coding standards, unit testing, and configuration management • Strong ability to analyze, debug, and maintain the integrity of an existing code base • Experience designing and delivering training workshops, tutorials, or onboarding material for HPC users and internal staff Active Top Secret/SCI with a CI Poly to start. Desired Skills: • Experience mentoring junior engineers or scientists, providing technical guidance, and conducting code review sessions • Revision control software (CVS, SVN, Git) • Build/install tools (e.g. CMake, Makefile, autoconf) • Experience with Python and Perl • GPU programming experience (e.g., CUDA, OpenCL) • Agile process and JIRA • AI/ML/Neural Networks experience • Good organization skills to balance and prioritize work • Superior programming skills and excellent attention to detail • Strong communication skills a results-oriented team player, creative thinker, and problem-solver LMSpaceSoftwareEng Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration. Clearance Level: TS/SCI w/Poly Other Important Information You Should Know Expression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings. Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility. Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits. Schedule for this Position: Standard Monday to Friday 40 hour work week Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $134,000 - $236,325. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays. (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year. This position is incentive plan eligible. Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics. The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration. At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility. If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications. Experience Level: Experienced Professional Business Unit: SPACE Relocation Available: Possible Career Area: Software Engineering Type: Full-Time Shift: First

Keywords: Lockheed Martin, Lakewood , Software Engineer Sr Staff, IT / Software / Systems , Simla, Colorado