Senior Information Systems Security Officer (ISSO)

Mission Technologies, a division of HII; Port Hueneme (CA); On-site; USD 103,000 - 154,000; Full time

Job summary

HII Mission Technologies is seeking a Senior Information Systems Security Officer (ISSO) in Port Hueneme, CA. The role focuses on information assurance, RMF lifecycle leadership, and secure systems engineering for critical government programs.

Active TS/SCI clearance is required. Salary range listed as $102,831.00–$154,000.00, with opportunities to influence cyber and mission IT solutions within Warfare Systems. This position is full-time and exempt.

Qualifications

• Experience leading information systems through the RMF lifecycle.
• Ability to author, review and maintain BoE documentation (SSP, SAR, RAR, CP, POA&Ms).
• DoD 8140/CSWF 451-Intermediate credential or willingness to obtain within 6 months.

Responsibilities

• Designs and implements information assurance and security engineering systems across hardware, software, data and procedures.
• Assesses threats, validates security requirements and supports secure operations throughout the program life cycle.

Skills

RMF mastery

Info security experience

BoE documentation

Education

Bachelor's degree in related field

High School Diploma or equivalent

Tools

xActa

eMASS

Archer

ServiceNow GRC

ACAS

Job description

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Senior Information Systems Security Officer (ISSO)

Requisition Number:30481

Required Travel: 0 - 10%

Employment Type:Full Time/Salaried/Exempt

Anticipated Salary Range:$102,831.00-$154,000.00

Security Clearance:TS/SCI

Level of Experience:Mid

This opportunity resides with Warfare Systems (WS), a business group within HII’s Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.

HII works within our nation’s intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.

Meet HII’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Find the role that’s right for you.

HII’s Mission Technologies division is dedicated to delivering cutting-edge solutions that advance national security and defense objectives. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.

The selected candidate will contribute to a high-impact government program focused on enhancing and securing mission-critical systems and environments. This new award launched in early 2026 and due to the classified nature of the mission and the sensitivity of the operational environment, an active TS/SCI security clearance will be required.

Engineer Info Assurance 2:$92,185 - $112,693

Engineer Info Assurance 3: $106,620 - $128,620

Engineer Ino Assurance 4: $128,887 - $158,124

What you will do

Designs and implements information assurance and security engineering systems with requirements of business continuity, operations security, cryptography, forensics, regulatory compliance, internal counter-espionage (insider threat detection and mitigation), physical security analysis (including facilities analysis, and security management). Assesses and mitigates system security threats and risks throughout the program life cycle. Validates system security requirements definition and analysis. Establishes system security designs. Implements security designs in hardware, software, data, and procedures. Verifies security requirements; performs system certification and accreditation planning and testing and liaison activities. Supports secure systems operations and maintenance.

What we are looking for

• 6+ years of information security experience ( ISSO , cyber analyst, cyber auditor, etc) with at least 2 years as an ISSO .
• Demonstrated mastery of the Risk Management Framework (RMF) and experience leading information systems through the RMF lifecycle.
• Demonstrated experience authoring, reviewing, and maintaining body-of-evidence (BoE) documentation (e.g., SSP, SAR, RAR, CP, and POA&Ms)

Must meet DoD 8140/CSWF for 451-Intermedediate or be willing to obtain the appropriate credential within 6 months

Active TS/SCI government security clearance required to start

Engineer Info Assurance 2: High School Diploma or equivalent and 6 years relevant experience.

Engineer Info Assurance 3: 6 years relevant experience with Bachelors in related field; or High School Diploma or equivalent and 9 years relevant experience.

Engineer Ino Assurance 4: 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; or High School Diploma or equivalent and 13 years relevant experience.

Preferred

• Experience with GRC tools (xActa, eMASS, Archer, ServiceNow GRC).
• Experience with discovery tools (e.g., ACAS) and experience managing vulnerabilities from discovery, through risk-based prioritization, remediation tracking, and formal risk assessments. Incident response/responder experience.

The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.

Together we are working to ensure a future where everyone can be free and thrive.
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.

Do You Need Assistance?
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. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.