> Markdown version of [/jobs/ext/4627779-senior-systems-integration-test-engineer-level-iii](https://www.wearedevelopers.com/jobs/ext/4627779-senior-systems-integration-test-engineer-level-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Integration/Test Engineer (Level III) - **Company:** Lockheed Martin - **Location:** Boulder, CO, United States - **Experience:** Expert - **Salary:** $106,600.0 - $198,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Systems Engineering, Continuous Integration, Programming Tools, Software Engineering, Software Requirements Analysis, Systems Integration, Cypress (Programming Language), Gitlab, Kubernetes, Docker, Jenkins - **Published:** November 7, 2026 - **Apply:** https://dejobs.org/x/x/A5C44B1905EB49568D79B7724C4DB09A/job/ ## About the Role * Familiarity with the software development lifecycle. * Experience developing and communicating clear, concise test procedures. * Must be able to obtain a Top Secret clearance; US citizenship required. Desired Skills * Experience with the Space domain (satellite ground systems and orbital platforms) * Experience with building test architectures * Experience with continuous integration pipelines (Jenkins, GitLab, Travis, etc.) * Self-driven - ability to work independently and in a team environment * Ability to work and communicate with teams spread across the country * Experience with writing use cases, scenarios, and software requirements for complex systems and defining measurements of success for them * Experience with 1LMX Test and Development tools, software, and processes (e.g. Cypress, CI/CD pipelines, Docker container deployments, Kubernetes) * Experience with AI driven 1LMX tools for test and development * Experience with Ground Product Line Tools and Applications (Compass, Horizon, SMO) * Active Top Secret clearance. ## Description The Systems Integration & Engineering organization within LM Space is searching for a motivated and passionate Systems Integration and Test Engineer to join our Systems Engineering, Integration, and Test (SEIT) team in Boulder, CO or King of Prussia, PA . In this role you will be focused on various testing and integration efforts within all of the teams and efforts the organization supports and the design and coordination of testing between (and within) the various teams/applications to ensure that the functionality is feature complete and all program/IRAD requirements, use cases, and scenarios are verified. Roles and responsibilities include: * Design, develop, and implement testing of use cases, scenarios, and requirements * Perform and/or ensure the ongoing verification of the created tests * Clearly communicate ideas and collaborate across multiple teams * Support both classified on-site and unclassified testing events