Senior Software Engineer; Level III - Top Secret clearance

Job Summary

Lockheed Martin Space is seeking a Senior Software Engineer to join our team in Littleton, CO. The role involves contributing to challenging programs related to Space Vehicles, Hypersonics, Human Space Flight and Interplanetary Missions, Missile Defense, and more.

Location: Littleton, CO

Position Type: Full-time onsite (non-hybrid)

Work Schedule: 9x80 schedule – 9 days of work over 8 weeks, with every other Friday off.

• Support the Global Security portfolio of programs by developing payload analysis tools for world-class RF payloads across various lifecycle stages.
• Engage in system requirements flow-down to test and verify mission performance.
• Lead troubleshooting and anomaly resolution.
• Work closely with RF Engineers, Box and Sub-system CPEs, program leaders, and subject matter experts to ensure program success.
• Partner with customers and program leadership to meet payload product milestones.
• Demonstrate subject matter expertise on payload analysis tools and mission execution.

• Deep expertise in payload data processing and mission execution.
• Expanded engineering and software proficiency through challenging, real‑world projects.
• Collaborative experience working side-by-side with a high-performing team of engineers.
• High-impact engagement with the customer on technical discussions and interchanges.
• Accelerated skill development to take on engineering growth opportunities.
• Hands-on involvement in a cutting-edge mission area with tangible, real-world results.
• Contribution to the armed forces’ ability to execute their duties safely and bring service members home.

• Experience developing software using Python, C#, and/or C++ programming languages.
• Working knowledge of Agile methodologies.
• Experience with Linux and Windows environments.

• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Computer Information Systems, Electrical Engineering, Mathematics, or related discipline.
• Experience working independently with limited direction to complete assigned tasks.
• Experience collaborating effectively with a team of users and other software developers.
• Strong computer network troubleshooting skills.
• Experience with software tools for version control (git, svn), peer reviews, code comparison, and bug/issue reporting (Jira).
• Experience with object‑oriented software design and design patterns.
• Experience with software IDEs such as Visual Studio, Eclipse, etc.
• Knowledge of RF characterization parameters.
• Experience programming or firmware for devices such as microcontrollers, FPGAs, etc.

U.S. Citizen, required. Must currently possess an active Top Secret clearance with adjudicated SCI eligibility (TS/SCI) for long-term employment on this program.

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, Holidays.

Annual base salary range (varies by state) $93,200 – $164,450. Salary determined by scope and responsibilities, experience, education, market, and business considerations.

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.

• Experience Level: Experienced Professional
• Business Unit: SPACE
• Relocation Available:
  Possible
• Career Area:
  Software Engineering
• Type:
  Full-Time
• Shift: First