Full Description

Overview LMI is actively seeking a skilled, experienced Senior Software Test Engineer to join LMI’s Space Market modeling and simulation (M&S) development team in Colorado Springs, CO. This role involves working directly with USSF and US Government customers, as well as analytical partners, to translate wargame, exercise, training, and analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. The ideal candidate is adept at applying systems engineering principles in modern software environments, with strong understanding of software integration and testing, and familiarity with DevSecOps pipelines, CI/CD practices, and cloud-native architectures. Candidates should be comfortable working across disciplines to integrate and test modeling and simulation software in secure environments (both on-prem and cloud-based), collaborating closely with developers and engineers to validate end-to-end functionality, and lead agile software systems engineering activities. LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed. Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value. This position requires an active Top Secret clearance and on-site presence in Colorado Springs, CO. Responsibilities Review, develop, document, and maintain system requirements and traceability across program Collaborate across engineering disciplines, working closely with software developers and system architects to validate end-to-end functionality and M&S effectiveness Lead integration and test of M&S software applications in secure DoD environments, ensuring interoperability, performance, and usability. Define test strategies, plans, procedures, and acceptance criteria for component, integration, and system-level testing. Design and execute verification & validation activities. Analyze test results, perform root cause analyses, and recommend corrective actions. Apply modern DevSecOps practices—including CI/CD pipelines, automated testing, containerized deployments, and infrastructure as code—to streamline integration and test activities. Contribute to risk, issue, and opportunity management; assess and report technical readiness and critical path impacts. Document software development plans, results and test findings, and readiness assessments for formal customer deliverables Actively collaborate in cross-functional engineering working groups to review, assess, and mature software artifacts such as system architecture, system behavior, system interfaces and requirements, software test plans, UI/UX designs, functional allocation, Interface Control Documents/Descriptions (ICDs), and data models Qualifications