Information System Security Officer (ISSO) (Engineer Info Assurance 3) - 28730

Mission Technologies, a division of HII; Nellis Air Force Base Census-Designated Place (NV); On-site; USD 95,000 - 130,000; Full time

Job summary

Mission Technologies, a division of HII, is seeking an experienced Information System Security Officer (ISSO) to join their team at Nellis AFB. The ISSO will provide cybersecurity oversight and support for advanced modeling and simulation systems, ensuring compliance with security standards and leading authorization processes.

A Bachelor's degree or equivalent experience is required, alongside a DoD 8140 IAT Level II certification and an active Top Secret clearance. The role requires excellent collaboration and communication skills while working in a dynamic, team-oriented environment.

Qualifications

• 5 years relevant experience with a Bachelor's degree, or 3 years with a Master's, or 0 years with a PhD or JD.
• Experience with STIGs, SCAP, SCC, vulnerability scanning, and RMF Bodies of Evidence.
• Strong understanding of RMF processes and compliance requirements.

Responsibilities

• Draft and update RMF artifacts for ATO maintenance.
• Support compliance and continuous monitoring of virtual training systems.
• Lead Assessment & Authorization processes.

Skills

Cybersecurity compliance

Communication

Collaboration

Security clearance handling

Education

Bachelor's degree in a related field

DoD 8140 IAT Level II certification

Tools

DISA ACAS

ePO

LogRhythm

Job description

Employment Type: Full Time/Salaried/Exempt

Security Clearance: Top Secret

Level of Experience: Senior

Job Summary

Information System Security Officer (ISSO) – Joint Integrated Test and Training Center, Nellis (JITTC‑N), Nellis AFB.

Provide cybersecurity oversight, RMF documentation, system security engineering support and continuous monitoring for advanced modeling and simulation (M&S) systems such as the Joint Simulation Environment (JSE) and Virtual Air Training System (VATS). Work onsite as part of an Advanced Tactics, Training, and Test team, delivering training and testing across a broad range of simulator and distributed training activities.

Essential Job Responsibilities

• Draft, review, and update RMF artifacts needed 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.

Minimum Qualifications

• 5 years relevant experience with a Bachelor’s degree in a related field; 3 years with a Master’s; or 0 years with a PhD or JD; or High School Diploma plus 9 years 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.

Credentials

• DoD 8140 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 Requirements

• Bachelor’s degree in Computer Science, Information Systems, or Information Technology; an 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.

Equal Employment Opportunity Statement

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.

Reasonable Accommodation

If you need a reasonable accommodation for any part of the employment process, please send an e‑mail to [e-mail] and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case‑by‑case basis. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.