Software Engineer Staff, Level 4 – Clearance Required with Security Clearance

Join Lockheed Martin Space as a Staff Software Engineer, Level 4 in Littleton, Arapahoe County—a full-time position advancing mission-critical space domain capabilities that shape national security and innovation.

What This Role Involves

You will serve as a technical leader and senior software engineer within Lockheed Martin Space's engineering organization, where your work directly supports space systems that matter to national defense and commercial space exploration. This Staff Engineer position demands both deep technical expertise and the ability to guide complex software architecture decisions across distributed teams. You'll operate in an environment where security-first thinking is embedded in every line of code and design choice.

Responsibilities

• Design, develop, and architect advanced software systems for space applications and mission-critical infrastructure
• Lead technical reviews and provide architectural guidance across engineering teams
• Mentor junior and mid-level engineers, fostering growth and technical excellence
• Collaborate with cross-functional teams on system integration, testing, and deployment
• Ensure all solutions meet rigorous security standards and compliance requirements
• Drive continuous improvement in code quality, performance, and maintainability
• Contribute to technical strategy and long-term capability planning

What You Bring

• Proven track record as a senior software engineer with deep expertise in systems or application development
• Demonstrated ability to lead technical initiatives and mentor other engineers
• Strong foundation in secure coding practices and security-aware software design
• Experience working in regulated environments or with mission-critical systems
• Ability to work effectively in collaborative, fast-paced technical environments
• Current eligibility for or possession of a U.S. government security clearance

Working at Lockheed Martin

Lockheed Martin Space pioneers technologies that expand what's possible in space. As a Staff Engineer, you'll join a team of technical experts pushing the boundaries of innovation in an industry where precision, security, and vision drive every decision.

How to Apply

To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.