Systems Engineer

Systems Engineer (Modeler) – Ground-Based Radar Digitization (GBRD)

Location: Colorado Springs, CO

In this role, you will support the modernization of legacy radar systems across eight Ground-Based Radar sites. These systems provide continuous surveillance, detection, tracking, and reporting of missile and satellite activity in support of Missile Warning (MW),
Missile Defense (MD), and Space Domain Awareness (SDA) missions.

The G  Digitization Program is implementing a common digital backend architecture and modernizing radar front-end systems to maximize standardization, improve maintainability, and enhance mission readiness across the enterprise.

• Model-Based Systems Engineering – Design, create, and maintain complex digital system models using SysML or UML to represent system architectures, requirements, behaviors, and interfaces.
• Architecture & Interface Modeling – Develop detailed architecture, behavior, and process models for radar back-end systems, algorithms, hardware, and software.
• Model-Based ICD Development – Author and maintain model-based Interface Control Documents (ICDs) and mapping frameworks to ensure interoperability across system components.
• Executable Models & Validation – Build executable models and automated validation suites to test system constraints and performance prior to physical prototyping.
• Scenario Thread Development – Support development of mission and operational scenario threads to inform system design and performance requirements.
• Digital Engineering Integration – Apply MBSE and Digital Engineering best practices to define the to‑be system design, including mission, cyber, interoperability, and environmental requirements. Work in CAMEO Enterprise Architect, providing model integration, branching, versioning, validation, audits and configuration control.
• Lifecycle Engineering Support – Contribute to system baseline development across the program’s three-phase contract: requirements definition, baseline establishment, and deployment of the modernized solution.

• Bachelor’s degree in Systems Engineering, Information Systems, Computer Science, or related field and 4+ years of relevant experience (additional experience, training, or certifications may substitute for degree).
• US Citizen;
  Currently possesses an Active Secret Clearance
  .
• Demonstrated experience with Model-Based Systems Engineering (MBSE),
  Digital Engineering
  , Cameo
  , scenario thread development, system integration, configuration management, cybersecurity, test support, and CI/CD
  .
• Strong written and verbal communication skills with the ability to engage both technical and non‑technical stakeholders.

• Master’s degree in a related field with 2+ years of relevant experience.
• Professional certifications such as DoD IAT Level II (e.g., Security+).
• Experience supporting DoD
  , MDA
  , U.S. Space Force
  , Air Force
  , or Intelligence Community programs.
• Experience with Integrated Tactical Warning / Attack Assessment (ITW/AA) systems or radar systems.
• Experience with missile and space on‑orbit events, cybersecurity, classified networks, cloud solutions, operational acceptance governance, and system lifecycle management.

Pay Range $87,100.00 - $

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Original Posting: June 30, 2026