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Senior Software Engineer, Level 3

Lockheed Martin
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Littleton, CO, USA
Sep 21, 2026

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.

Lockheed Martin Space is seeking a full time Software Engineer Sr.  In this role, you will support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object oriented analysis & design, code & unit test, integration, and support to formal test/delivery.  

The successful candidate will have experience and/or knowledge of languages such as C or C++.  Must be a US Citizen;  this position will require government security clearance prior to starting.  This position is located at a facility that requires special access.

Travel up to 5% to Huntsville, AL for Planning activities.

#LI-TW1

Software Engineer Sr 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. Proficient in AI prompting as it applies to this position and practice.

Basic Qualifications

  • Experience with programming languages such as C, C++
  • Real Time Operating System (RTOS) experience
  • Experience doing low level embedded software development including one or more of the following (Board Support Packages (BSP), device drivers, bootloaders).
  • Familiarity with hardware interfaces, bus protocols, and analog/digital signaling
  • Experience troubleshooting skills for tough technical challenges

Desired Skills

  • Knowledge of Agile Software Development
  • Excellent written and verbal communication skills
  • Knowledge of Model Base Systems Engineering (MBSE)
  • Experience with full software life cycle development including SW design, architecture and integration & test
  • Experience working with multiple communications protocols
  • Standard teaming: Ability to work with multi-disciplined teams
  • Bachelor’s degree in computer science, Aerospace Engineering or other related degree program from an accredited college/university

#LMSpaceSoftwareEng

#Spaceembeddedsw

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.

Job ID

996476183557|loc3
About Lockheed Martin

The F-35, PAC-3, and the GOES weather satellite...What do all of these technologies have in common? Talented people, our employees are the core of our business here at Lockheed Martin. As the leading global security, aerospace and information technology company-and the largest provider of IT services, systems integration & training to the U.S. government-we apply our passion for purposeful innovation to keep people safe and solve the world's most complex challenges.

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