Senior Model-Based Systems Engineer (MBSE)

Title: Senior Model-Based Systems Engineer (MBSE) KBR’s Mission Engineering Division delivers complex technical solutions and expert support to the U.S. Department of War, specializing in modeling and simulation, cyber transformation, air vehicle mission integration, and lifecycle support. As a trusted partner with a proven history in mission technology, KBR collaborates closely with clients to develop innovative and effective solutions. With a strong ethical framework, KBR prioritizes data security, privacy, and responsible information management to ensure mission success.   Our   Carlsbad, CA team   is   seeking a   Mid-Level Model-Based   Systems Engineer (MBSE)   to support a classified   all-domain   mission system development program for the Department of War .   In this role, you will develop system and mission-level models that inform capability design, integration, and verification across a complex engineering environment. You will collaborate with   multi-disciplinary   engineering teams to perform trade studies, mature   architectures , and   maintain   model traceability from requirements to verification activities. Work is   conducted onsite   in a classified facility ,   where modeling rigor, analytical depth, and configuration discipline are essential .      Roles & Responsibilities:   Develop descriptive   system, mission, and architecture   models using   SysML   and MBSE best practices.   Integrate MBSE tools to   perform trade studies, analysis of alternatives ( AoA ),   and system performance assessments.   Establish and   maintain   full traceability between requirements, design elements, risks, schedules, and   verification   artifacts.   Track   measures of effectiveness (MOEs) and technical performance measures   (TPMs) to inform engineering decisions.   Collaborate with cross ‑ functional engineering teams to mature system architectures and support design reviews.   Maintain model baselines, configuration integrity, and quality using collaborative model repositories and version control tools.   Support the development of   executable models,   simulations, and analytical workflows that inform system behavior. Prepare and present model products, findings, and technical insights to review boards and stakeholders.

Clearance & Citizenship:   Must be a US Citizen with a current   TS/SCI.   An active and transferable   U.S. government-issued DODTS/SCI with the ability to obtain Special Access security clearance is   required   prior to the start date.

Bachelor’s degree in engineering, computer science, mathematics, or related technical discipline.

Minimum 5 years of experience in   Model-Based   Systems Engineering.   Technical Expertise:   Experience with the   NoMagic /Cameo suite   ( Cameo Systems Modeler, Teamwork Cloud, and Cameo Collaborator ).   P roficiency   in   SysML , system modeling methodologies, and object ‑ oriented analysis/design.

Familiarity with analytical/simulation tools (e.g., MATLAB, STK,   Modelica , SciPy/ SciKit ‑ Learn) to inform model ‑ driven trade space exploration. Experience developing executable system models (e.g., OMG ‑ CSMP certification or equivalent knowledge).   P rogramming experience in Python, Java, or JavaScript for model automation and analysis.   E xperience working in Agile engineering environments supporting Department of War or Intelligence Community (IC) programs.   Experience with UAF or DoDAF architecture frameworks.     Work Location:   Ability to work full ‑ time in a classified Carlsbad, CA facility.   Additional Clearance Note : Active and transferable U.S. government-issued DODTS/SCI with the ability to obtain Special Access security clearance is   required   prior to start date. U.S. citizenship is   required .    Scheduled Weekly Hours:   40 hours /week   Basic