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Flight Software

Software Simulation & Modeling Engineer

Lockheed Martin logoLockheed Martin$110,300–$204,900/yrLittleton, CO, United StatesPosted 2w ago

How this pay compares

This posting states $110k–$205k a year. Open software engineer jobs in Colorado post a median of $159k a year, the middle half $135k–$198k, across 249 jobs that state their pay, so this one is within the middle half of what they post.

Software engineers in Colorado: pay by town and employer

About the job

## Standard Job 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!

We are seeking for a Senior Software Engineer to join our FSW/Sim Integration team that develops Sim Software and provides support to the integration team in integration and test of flight software and Sim products in Hardware in the loop.

Core Responsibilities - Maintain and develop simulation software - Drive enhancements to end to end test scripts - Work closely with Navigation, Guidance & Control, Flight Software development, and HWIL teams to ensure compliance with integration standards and test procedures. - Understand and operate the Hardware In the Loop Testbed, including configurations, tools, and processes. - Collaborate with engineering groups to resolve technical problems, communicate status, and maintain documentation. - Uphold rigorous standards and processes through strong organizational and communication skills.

Key Success Factors - Ability to work independently with minimal supervision. - Diagnose and resolve software configuration or baseline issues during integration and installation phases. - Review problem reports and enhancement requests to assess impacts on testing and regression plans. Plans, conducts, and coordinates software development activities.

Designs, develops, documents, tests, and debugs software that contains logical and mathematical solutions to business/mission problems or questions in computer language for solutions by means of data processing equipment. Applies the appropriate standards, processes, procedures, and tools throughout the development life cycle.

Applies knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software.

Corrects program errors, prepares operating instructions, compiles documentation of program development, and analyzes system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls.

Ensures software standards are met. ## Basic Qualifications - Experience in Linux or UNIX environments. - Experience on a software development program - Python development experience - C++ development experience ## Desired Skills - Experience with integrating and testing hardware/software products or equivalent technical experience - Ability to read and modify Matlab tool - Experience with Agile development methodologies - Experience developing and maintaining simulation software - Ability to analyze test results and coordinate with SME to verify functionality and requirements - E xperience with Git, Jira, and DevOps #LMSpaceSoftwareEng ## Interview Questions Software Product Testing: Tell me about any software testing related experiences you had as a part of your previous position(s).

System Testing: Describe kinds of typical problems you encountered during the system testing process Modeling: Data, Process, Events, Objects Systems Modeling and Analysis Analytical Ability: Detail a time you acted on analysis from a teammate or external source.

How did you utilize the data, and how did you collaborate with others to understand and act on the findings? ## Pay Information Full-Time Salary Range: $110300.00 - $204900.00 At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow - both professionally and personally.

The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.

Benefits offered:Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability. - Annual short-term and/or long-term incentive compensation programs may be offered depending on the position.

Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics. - For (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.

From Lockheed Martin's job posting, checked 7 Nov 2026. The employer's own page is the final word on requirements and availability.

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About Lockheed Martin

Lockheed Martin Space builds GPS and missile warning satellites, NASA's Orion crew capsule and deep space probes.

Pay on its listings: 98.1% of its open jobs state an hourly rate

How it pays: Paid as an employee on Lockheed Martin's own payroll (salaried or hourly, as each posting states).

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