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4 senior software engineer level 3 jobs found in Boulder

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Boulder United States senior software engineer level 3
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Lockheed Martin  (2) General Dynamics Mission Systems, Inc  (2)
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Lockheed Martin
Mar 25, 2026
RTS DevSecOps Engineer
Lockheed Martin Boulder, CO, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING 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. THE WORK Lockheed Martin is seeking a skilled RTS DevSecOps Engineer with a final Secret security clearance to work from our Boulder, CO location. This is an EARLY-MID CAREER (level 3) ROLE where candidates typically require 3+ years of professional experience and a BS degree. The Real-time...
Lockheed Martin
Mar 25, 2026
Requirements and Verification Engineer - Early Career
Lockheed Martin Boulder, CO, USA
Description: Come join Lockheed Martin’s engineering team supporting the Space Development Agency’s Tranche 3 Tracking Layer program. This critical initiative will provide missile warning, missile tracking, and missile defense capabilities. You will join an elite team to develop cutting edge technical capabilities for our customers utilizing groundbreaking model-based systems engineering (MBSE), web-based documentation and continuous integration continuous development (CI/CD) pipelines. Lockheed Martin seeks a talented Requirements & Verification (R&V) engineer to join the team in Boulder, Colorado. As R&V engineer, you will: • Develop/analyze/verify system level requirements and document & manage accordingly • Plan and coordinate the requirements verification and validation process • Coordinate with customer and other contractors to execute verification analyses and tests • Coordinate program resources, personnel, requirements, and deliverables •...
General Dynamics Mission Systems, Inc
Feb 12, 2026
Senior Principal Software Systems Engineer
General Dynamics Mission Systems, Inc Boulder, CO, USA
Basic Qualifications Education Requirements: Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     Clearance Requirements : Department of Defense Top Secret security clearance is required at time of hire.  Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is...
General Dynamics Mission Systems, Inc
Feb 12, 2026
Senior Advanced Software Systems Engineer
General Dynamics Mission Systems, Inc Boulder, CO, USA
Basic Qualifications Education Requirements : Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience. Agile experience preferred.   Clearance Requirements:   Department of Defense Top Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is important....
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