Systems Engineer (Modeler) – Ground-Based Radar Digitization (GBRD)
Location: Colorado Springs, CO
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Your greatest work is ahead.
Leidos Defense Sector is seeking a Systems Engineering Modeler to support the Ground-Based Radar (GBR) Digitization Program, a major modernization initiative enhancing the nation’s missile warning, missile defense, and space domain awareness capabilities.
Program Overview
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 GBR 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.
What You’ll Do
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. Work in CAMEO Enterprise Architect for model data, management, branching, versioning, audits, and digital processes.
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.
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.
Basic Qualifications
Bachelor’s degree in Systems Engineering, Information Systems, Computer Science, or related field and 8+ 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.
Preferred Qualifications
Master’s degree in a related field with 6+ 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.
AMSOPP1
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
June 30, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range $107,900.00 - $195,050.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 48,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
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