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.

Required qualifications

•        10+ years of enterprise architecture or systems
engineering experience, with at least 3+ years applying MBSE in a large DoD or
federal program.

•        Hands -on experience with a leading MBSE tool (Cameo
Systems Modeler / MagicDraw, Capella, Rhapsody, or equivalent) and SysML
proficiency.

•        Working knowledge of CACI MDDI methodology or directly
equivalent model -driven design / implementation approaches.

•        Deep familiarity with SAP S/4HANA architecture: data
model, integration patterns, security model, and core supply -chain / financials
module boundaries.

•        Active DoD clearance at the level required by the JTMS
program, or eligibility for clearance (specific level TBD with CACI).

•        Bachelor’s degree in Systems Engineering, Computer
Science, or related discipline; advanced degree preferred.

Preferred qualifications

•        INCOSE CSEP / ESEP certification or equivalent.

•        TOGAF or DoDAF working knowledge; prior DoDAF view
production for an ACAT -class system.

•        Experience designing model -driven verification,
test -as -you -build, and automated architecture compliance checks.

•        Prior USTRANSCOM, JDDE, or joint logistics
modernization architecture experience.