System Architect - MDDI / MBSE

Serve as a senior system architect on the JTMS platform, applying CACI’s Model-Driven Design and Implementation (MDDI) methodology and Model-Based Systems Engineering (MBSE) practices to the S/4HANA-anchored enterprise architecture. Translate joint transportation business processes and architectural intent into authoritative system models that drive design, integration, and verification across the program’s release trains - aligned with DoDI 5000.97 Digital Engineering direction.

Key responsibilities

• Apply CACI MDDI methodology to capture target business processes, system architecture, requirements, and interfaces in a single authoritative system model (Systems Architecture Model / SAM).

• Develop and maintain MBSE artifacts using SysML or equivalent (e.g., Cameo Systems Modeler, Capella, or Rhapsody) covering structure, behavior, requirements, and parametric views of the JTMS platform.

• Translate business architecture into S/4HANA configuration intent: data model, integration topology, and process flow across FI/CO/FM, MM, SD, GTS, and Transportation Management modules.

• Lead integration architecture across REST/SOAP services, enterprise messaging (Kafka or equivalent), API gateways, and the JTMS canonical data model bridging dozens of legacy DoD logistics interfaces.

• Align the architecture to DoDI 5000.97 (Digital Engineering), RMF / NIST 800-53 control families, Zero Trust principles under NIST 800-207, and DoD SRG IL4/IL5 hosting constraints.

• Govern architecture decisions and trade studies across the program’s Agile Release Trains; lead architectural runway planning, model-driven verification approaches, and architecture review boards.

• Mentor functional, integration, and DevSecOps engineers in model-driven design discipline; produce and curate architecture documentation aligned to the program’s configuration management standards.

• U.S. citizenship with an active DoD Secret clearance or the ability to obtain one (we will sponsor eligible candidates).

• 7+ years designing enterprise, system, or solution architectures for large-scale IT programs in DoD or comparable regulated/enterprise environments.

• Demonstrated systems-engineering capability: you can decompose a complex system and model its structure, behavior, interfaces, data, and end-to-end mission/business threads with full traceability - independent of any single tool.

• Working proficiency with a SysML/UML modeling approach in a recognized tool (e.g., Cameo Systems Modeler / MagicDraw, Sparx EA, Rhapsody, GENESYS, or similar), plus familiarity with an architecture framework such as DoDAF or UAF.

• Strong communication skills, including technical briefings and architecture documentation for executive and senior military audiences.

• Aptitude and motivation to deepen MBSE and digital-engineering skills, with support from our digital-engineering community of practice.

• Bachelor’s degree in Systems Engineering, Computer Science, Engineering, Information Systems, or a related technical field - or equivalent professional experience.

Preferred qualifications

• Active DoD Secret clearance.

• 5+ years of hands-on MBSE / digital engineering in complex system-of-systems environments.

• Master’s degree in Systems Engineering, Enterprise Architecture, or a related field.

• Direct experience supporting USTRANSCOM, DoD logistics, transportation, supply chain, or ERP modernization programs.

• Experience generating technical documentation, reports, and deliverables directly from system architecture models.

• Experience architecting solutions that integrate COTS/ERP platforms with custom DoD systems.

• Ability to extend MBSE tool capabilities through scripting, APIs, or plugins.

• Familiarity with digital twin, digital baseline management, and AI/ML integration within MBSE frameworks.

• Experience with cloud-based architectures, DevSecOps pipelines, or zero trust in DoD environments (AWS GovCloud, IL4/IL5).

• Knowledge of the DoD acquisition lifecycle, JCIDS, and business process reengineering in enterprise transformation.

• Certifications such as OCSMP, INCOSE CSEP/ESEP, TOGAF, SAFe, or AWS/Azure architecture credentials.