System Integration and Test Engineer

Basic Qualifications

• Bachelor's degree from an accredited college with 3+ years of professional experience in a related discipline, a Master's degree with 1+ years of experience, or equivalent experience/combined education
• Demonstrated software test engineering experience
• Experience writing test procedures
• Experience using Red Hat Enterprise Linux via Command Line Interface (CLI)
• Ability to learn necessary skills through hands‑on experience
• Excellent verbal and written communication skills
• Strong analytical and problem‑solving skills with attention to detail; quick thinker, fast learner, proactive problem solver, creative, critical thinker
• Ability to obtain a Top Secret clearance

Lockheed Martin (LM) Rotary and Mission Systems (RMS) is looking for engineering professionals to work on the Trusted Security Solutions (TSS) program to engineer Cross‑Domain Solution (CDS) products. This position is for a Systems Integration/Test Engineer on the Radiant Mercury product within the TSS program. Radiant Mercury is the US Navy’s premier CDS product and LM has been the prime contractor for over 20 years.

We engineer innovative solutions to deliver resilient systems, products, and services across evolving cyber threats. This role is critical in safeguarding the confidentiality, integrity, and availability of mission‑essential systems by delivering secure cross‑domain solutions that enable controlled transfer of information between different security domains.

• Strong background in software development, with a willingness to learn new technologies and support all phases of CDS development
• Well‑rounded engineer experienced with software deployment, networking, system administration, and hardware
• Collaborative team player who can work closely with systems engineers, integration and test engineers, and software engineers to coordinate tasks
• Ready to learn necessary skills through hands‑on experience and work well in a team environment
• Eligible for government security investigation and classified information access

Primary work location is the Deer Creek Facility in Littleton, Colorado with limited remote work.

Responsibilities include:

• Design, develop, and maintain formal test procedures to verify requirements are met; create new, manually executed procedures for new software features; update existing procedures when software changes; identify efficiency improvements and automate where possible
• Maintain test support artifacts; create/update test packages (RPMs) required by test procedures, including test messages, configurations, OS settings, and test setup; control configuration in Git
• Maintain requirements baseline and compliance in DOORS; update baseline to align with periodic government releases; maintain functional requirements
• Maintain compliance status and test procedure linkage
• Perform integration testing to informally test new features or verify bug resolution; write bugs and resolve issues with the software team
• Work in an Agile environment; participate in feature design reviews and planning meetings; attend daily scrum meetings

• Flexible schedules, competitive pay, comprehensive benefits, and focus on work/life balance

• Comprehensive benefits package including medical, dental, vision, 401(k), and paid time off

Deer Creek Facility in Littleton, Colorado

• Cross‑Domain Solution domain knowledge
• Networking knowledge
• Red Hat Enterprise Linux system administration
• Shell scripting / Python experience
• Security Enhanced Linux knowledge
• Experience with defense industry cybersecurity baselines (Risk Management Framework, Raise the Bar)
• Experience with test automation
• Hands‑on software design and software/system architecture
• Strong understanding of the systems engineering lifecycle, principles, processes, and methodologies