Matthew Bunn
MBSE Systems Engineer
MBSE-focused Systems Engineer at G2 Ops, authoring SysML architecture artifacts for cleared Navy programs. Real RMF/ATO work: requirements generation, multi-system architecture, model-based evidence for accreditation packages. Network engineering background (NMCI, COMSEC) keeps the models grounded in operational reality.
Experience
G2 Ops, Inc.
May 2025 – Present
Associate Engineer, MBSE Systems Engineering · Virginia Beach, VA
- Author SysML/UAF architecture artifacts across cleared Navy programs, working the full V-model lifecycle from requirements capture and allocation through certification artifact generation in Cameo Systems Modeler.
- Develop multi-system architectures using the model as authoritative source of truth, so per-subsystem views and ATO-package artifacts regenerate from it and compress change cycles on the security package.
- Produce model-based evidence feeding RMF accreditation packages; allocate requirements to architecture elements and surface allocation gaps before they become certification findings.
INflow Federal
Jun 2024 – May 2025
Network Engineer, NMCI Program · Norfolk, VA
- Engineered and integrated cleared Navy network systems at scale (20,000+ users) across global LAN/WAN, applying systems engineering discipline to configuration baselines, change management, and lifecycle upgrades for shore-based NMCI infrastructure.
- Conducted system design reviews against Information Assurance and cybersecurity controls, validating architectures against mission-critical availability and security posture requirements.
- Performed integration and test of mission-critical network hardware: Cisco/Brocade routing and switching, COMSEC/TACLANE crypto, and Aruba wireless controllers.
G2 Ops, Inc.
Jul 2023 – Jun 2024
Systems Administrator, Identity & Endpoint · Virginia Beach, VA
- Implemented enterprise-wide security controls across Microsoft 365, Entra ID, and Intune, translating organizational security requirements into operational policy through Azure conditional access and device-management baselines.
- Operated continuous-monitoring stack (Tenable Nessus, Sophos EDR): vulnerability triage, finding adjudication, and remediation tracking against the organization's risk posture.
- Designed and delivered an end-to-end security awareness program (phishing simulation and training curriculum), addressing the human-systems integration aspect of organizational cybersecurity.
Selected Projects
Multi-System ATO: Architecture Artifacts
2025–2026
MBSE Systems Engineer · Navy
Model-based architecture artifact author for a cleared Navy ATO covering a multi-system program with deployments across several platforms. The model is the source of truth; downstream package artifacts regenerate from it. Each subsystem has its own architecture view; deployments with shared design are combined into a single diagram, others get dedicated diagrams as configuration warrants.
SysML
Cameo Systems Modeler
RMF/ATO
Parallel-Track ATOs: Mission-Package Modeling
2025–2026
MBSE Systems Engineer · Navy
Generating model-based architecture artifacts for a portfolio of distinct mission packages, each running its own ATO. Configuration variants warranting separate accreditation are modeled as first-class siblings rather than parameterized off a shared model. Each package has dedicated architecture artifacts; some have subsystem-level views beneath.
SysML
Cameo Systems Modeler
Multi-system accreditation
Requirements & System Modeling: Connected Node and Pathway
2025
MBSE Systems Engineer · Navy
Generated requirements and modeled the architecture of a connected node and the end-to-end data pathway it depended on, working the front of the lifecycle in SysML and UAF. Captured requirements directly against model elements. Modeled the node and its pathway as one connected system so requirements had something concrete to allocate against.
SysML
UAF
Requirements Management
Skills
MBSE & Modeling
SysML
UAF
Cameo Systems Modeler
Architecture Description
Model-Based V&V
RMF & Accreditation
NIST SP 800-53
Traditional RMF ATO
Cyber Ready (cATO)
Multi-system accreditation
Systems Engineering
Requirements Capture
Architecture Development
System Analysis
Lifecycle Management
Traceability
Process & Tooling
Jira
FreshService
Confluence
Digital Engineering
Cleared Defense Context
Active Secret
Navy acquisition
NMCI
COMSEC/TACLANE
Background: Networks & IT
LAN/WAN Design
Cisco / Brocade
Microsoft 365
Tenable Nessus
Education & Certifications
Regent University
B.S. Cybersecurity
Virginia Beach, VA
Graduated Dec 2024
- Active Secret Clearance
- CompTIA Security+
- Cisco CCST
- Microsoft AZ-900
- SysML v1.7 (Udemy, 2025)