MBSE Engineer

APEX TK LLC; Huntsville (AL); On-site; USD 110,000 - 170,000; Full time

Job summary

APEX TK is seeking a Model-Based Systems Engineer (MBSE) to support the MDA Targets and Countermeasures program. You will apply systems engineering within a digital engineering framework to create, analyze, and maintain SysML models.

Responsibilities include traceability of requirements, interface analysis, and preparation of artifacts for SRR, PDR, CDR, and CCB milestones. Collaborate with government leads, prime contractors, and cross-functional teams to ensure baseline integrity and data

Qualifications

• Active DoD Secret clearance.
• Bachelor's degree with 7+ years supporting missile defense or large-scale, complex DoD programs.
• Proficiency with SysML and core frameworks (DoDAF, UAF).
• Hands-on MBSE tools: Cameo Systems Modeler / Cameo Enterprise Architect, MagicDraw, Sparx EA.
• Ability to distill complex architectures into clear diagrams and docs.

Responsibilities

• System Modeling & Architecture: Develop and maintain SysML models capturing behavior, structure, interfaces, and requirements across MDA programs.
• Requirements Traceability: Map requirements to artifacts ensuring end-to-end traceability and baseline integrity.
• Digital Engineering Integration: Link MBSE models with simulations, data repositories, and external tools.
• Technical Baseline Reviews: Prepare model-centric artifacts for SRR, PDR, CDR, and CCB milestones.
• Interface & Trade Studies: Analyze interfaces and perform architectural trade studies to resolve integration risks.
• Configuration & Data Management: Maintain version control and baselining for SysML models.

Skills

SysML

Security Clearance

Communication

DoDAF

UAF

Education

Bachelor degree

Tools

Cameo Systems Modeler

Cameo Enterprise Architect

MagicDraw

Sparx Enterprise Architect

Job description

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.