MBSE Engineer

**General Overview** APEX TK is seeking a **Model-Based Systems Engineer (MBSE)** to support the Targets and Countermeasures program office of the **Missile Defense Agency (MDA)**. In this role, you will apply systems engineering principles within a digital engineering framework to create, analyze, and maintain system architecture models. You will collaborate with government leads, prime contractors, and cross-functional engineering teams to trace requirements, model behavioral and structural architectures, and support technical baseline reviews. **What You'll Be Doing:** - **System Modeling & Architecture:** Develop and maintain descriptive system models using SysML to capture system behaviors, structure, interfaces, and operational requirements across MDA programs. - **Requirements Traceability:** Map system-level and component-level requirements directly to architecture artifacts, ensuring end-to-end traceability, verification matrices, and baseline integrity. - **Digital Engineering Integration:** Support the implementation of MDA Digital Engineering initiatives by linking MBSE models with external tools, simulations, and data repositories. - **Technical Baseline Reviews:** Assist in preparing and presenting model-centric artifacts for major program milestone reviews (e.g., SRR, PDR, CDR, CCBs). - **Interface & Trade Studies:** Conduct architectural trade studies, analyze interface definition documents (IDDs/ICDs), and model system interfaces to identify gaps and resolve integration risks. - **Configuration & Data Management:** Maintain version control and configuration baseline compliance for SysML models in accordance with program data management standards. **What Required Skills You'll Bring:** - **Security Clearance:** Active DoD Secret clearance - **Education & Experience:** Bachelor degree with 7+ years supporting missile defense or large-scale, complex DoD programs. - **Technical Proficiency:** - Demonstrated proficiency with **SysML** (Systems Modeling Language) and core systems engineering frameworks (DoDAF, UAF). - Hands-on experience with industry-standard MBSE modeling tools (e.g., **Cameo Systems Modeler / Cameo Enterprise Architect** , MagicDraw, Sparx Enterprise Architect). - **Communication:** Ability to distill complex system architectures into clear, concise diagrams, technical documentation, and briefings for multidisciplinary stakeholders. **What Desired Skills You'll Bring:** - Experience supporting **MDA programs** (e.g., Targets and Countermeasures, Ground-Based Midcourse Defense, THAAD, Aegis BMD, or C2BMC). - OMG-Certified Systems Modeling Professional (**OCSMP** ) certification (Fundamental, Intermediate, or Advanced). - Working knowledge of requirement management tools (e.g., **DOORS** , Cameo Requirements Plugin) and issue-tracking platforms (Jira, Confluence). - Experience integrating MBSE models with analytical/simulation environments (e.g., MATLAB/Simulink, Python, or OpenMBEE). - Familiarity with DoD Systems Engineering processes, CDRLs, and technical baseline governance.