Mission Technologies, a division of HII · 2 hours ago
Modeling & Simulation Systems ISSO - 27039
Nellis AFB, NV
Full-time
Onsite
Mid, Senior Level
$96K/yr - $135K/yr
5+ years expHII Mission Technologies is seeking an Information System Security Officer (ISSO) to support the Joint Integrated Test and Training Center – Nellis (JITTC‑N) at Nellis AFB. In this role, you will provide cybersecurity oversight, RMF documentation, system security engineering support, and continuous monitoring for advanced modeling and simulation (M&S) systems. Your work directly enables the secure operation of cutting‑edge simulation environments used to train, test, and prepare warfighters for complex operational missions.
Defense & Space
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Draft, review, and update RMF artifacts required to obtain and maintain ATO for emerging systems, including advanced M&S environments such as JSE and VATS
Support cybersecurity compliance and continuous monitoring for virtual training systems, distributed simulation environments, and related mission systems
Evaluate and document security controls for systems supporting high‑fidelity simulation, virtual air training, and distributed mission operations
Assist in securing network architectures and system configurations used in environments such as VATS, JSE, and other USAFWC/ACC training systems
Maintain configuration records for workstations, servers, routers, firewalls, switches, and simulation‑related infrastructure
Provide cybersecurity guidance to engineering and M&S teams developing or modifying virtual training systems
Lead Assessment & Authorization (A&A) processes and support ongoing RMF compliance activities
Report cybersecurity incidents to the ISSM through formal reports and briefings
Support implementation and enforcement of information system security policies, standards, and methodologies
Conduct technical analysis, troubleshooting, and coordination with customers, vendors, and internal teams as required
Provide technical training and product briefings to customers and stakeholders
Qualification
Required
5 years of relevant experience with a Bachelor's degree, or
3 years of relevant experience with a Master's degree, or
0 years with a PhD/JD, or
High school diploma/equivalent and 9 years of relevant experience
Experience using DISA ACAS, ESS, ePO, and Trellix
Experience with STIGs, SCAP, SCC, RMF Bodies of Evidence, JSIG, vulnerability scanning, logging tools, LogRhythm, ACAS/NESSUS, and McAfee HBSS
Strong understanding of RMF processes and cybersecurity compliance requirements
Ability to work in a fast‑paced, team‑oriented environment with excellent communication and collaboration skills
DoD 8570 IAT Level II certification (e.g., Security+ CE)
Compliance with DoD Cyber IT/CSWF Program requirements (DoD 8140.03M, SECNAV M‑5239.2)
Must have held an active Top Secret clearance within the last 24 months
Ability to obtain and maintain a TS/SCI and relevant SAP/SAR access
Preferred
Bachelor's degree in Computer Science, Information Systems, or Information Technology
Advanced degree may substitute for 2 years of experience
Strong understanding of RMF, JSIG, and RMF Bodies of Evidence
Experience supporting cybersecurity for M&S systems such as VATS, JSE, DMO, or other virtual training environments
Experience in cybersecurity, network security architecture, system hardening, auditing/compliance, or systems security engineering
Experience supporting cybersecurity compliance under NISPOM/DAAPM, JSIG, ICD 503, STIGs, and NIST publications
Benefits
Best-in-class medical, dental and vision plan choices
Wellness resources
Employee assistance programs
Savings Plan Options (401(k))
Financial planning tools
Life insurance
Employee discounts
Paid holidays and paid time off
Tuition reimbursement
Early childhood and post-secondary education scholarships
Company
Mission Technologies, a division of HII
HII’s Mission Technologies division develops integrated solutions that enable today’s connected, all-domain force.
5001-10000 employees
Funding
Current Stage
Late StageLeadership Team
Marc Sosa
Senior Vice President and Chief Information Officer
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