STINGRAI Network Security Engineer (Cyber Architect 3) - 29310

Huntington Ingalls Industries; Tampa (FL); On-site; USD 98,280 - 130,000; Full time

Job summary

Huntington Ingalls Industries (HII) – Mission Technologies’ STINGRAI program seeks a Network Security Engineer to design, implement, and maintain secure network architectures across DoD environments in Tampa, FL. The role requires building firewall configurations, cloud security, and cross‑functional collaboration to protect critical missions.

The ideal candidate has DoD/Cyber security experience, DoD policy knowledge, and strong documentation skills.

Qualifications

• Experience providing network security engineering or cybersecurity support to SOCOM, DoD agencies, or other government defense programs.
• Knowledge of DoD network security policies, firewall administration, and secure network architecture best practices.
• Experience configuring and maintaining firewalls, network switches, wireless infrastructure, and virtual/cloud security appliances.
• Ability to translate security requirements into compliant network configurations aligned with DoD cybersecurity standards.
• Experience conducting root cause analysis of security incidents and implementing risk mitigation strategies.

Responsibilities

• Design, implement, and execute network security maintenance regimens to support secure and resilient operations.
• Configure and maintain physical and virtual firewalls, including cloud-based security appliances, in accordance with DoD and SOCOM requirements.
• Work closely with the customer’s Security Officer to support and enhance the organization’s security program.
• Implement the technical aspects of the customer’s cybersecurity program, ensuring compliance with applicable DoD policies.
• Facilitate internal and external security audits, assessments, and inspections.
• Translate cybersecurity and operational requirements into compliant and secure network configurations.
• Provide full lifecycle support for firewalls, switches, wireless networks, and associated network security components.
• Monitor network performance and implement improvements to enhance reliability, efficiency, and security.
• Perform root cause analysis of security incidents and network-related events; develop and implement corrective actions.
• Develop, document, and maintain complex network configurations and architecture documentation.
• Analyze existing network schemas and configurations to identify vulnerabilities and recommend security enhancements.
• Apply structured engineering methodologies to plan, coordinate, and implement network security projects.

Skills

SOCOM experience

DoD security policies

Firewall administration

Network security

Security auditing

Education

Bachelor's degree in related field

Master's degree in related field

High School Diploma or equivalent

Tools

Firewall appliances

Cloud security

Virtual networks

Network switches

Job description

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STINGRAI Network Security Engineer (Cyber Architect 3) - 29310

Location: Tampa, FL, Florida, United States

Requisition Number:29310

Required Travel: 11 - 25%

Employment Type: Full Time/Salaried/Exempt

Anticipated Salary Range: $98,280.00 - $130,000.00

Security Clearance: Top Secret

Level of Experience: MidHI

This opportunity resides with All-Domain Operations (ADO), a business group within HII’s Mission Technologies division. All-Domain Operations comprises multi‑domain operations, platforms and logistics, and intelligence operations.

HII designs, develops, integrates and manages the sensors, systems and other assets necessary to support integrated ISR operations and accelerated decision‑making. With data fusion and mission management capabilities for the Department of Defense, the combatant commands and the intelligence community, HII advances the mission around the globe.

Leadership at HII is a mindset, not a title. Through our Leadership Capability Framework, we define how every employee grows, leads, and contributes—regardless of role. It sets the standard for how you can develop yourself and what you can expect from leaders across our organization. We look for candidates who want to grow in alignment with these capabilities:

• Know & Grow Your People – Commit to learning and supporting team success.
• Build Relationships – Communicate openly, collaborate well, and build trust.
• Take Ownership – Deliver on commitments and take pride in your work.
• Customer First – Focus on the mission and those we serve.
• Shape the Future – Bring ideas, curiosity, and continuous improvement.
• Act with Urgency – Take initiative and follow through with purpose.

Who We Are

HII – Mission Technologies is seeking a Network Security Engineer. The Network Security Engineer provides cybersecurity and network defense support to U.S. Special Operations Command (SOCOM) by designing, implementing, and maintaining secure network architectures across mission‑critical environments. This role executes network security maintenance activities, configures physical and virtual firewalls, and ensures secure network operations in accordance with DoD and SOCOM security policies. The engineer supports the customer’s Security Officer, develops compliant security configurations, and enhances the resilience, performance, and protection of networked systems supporting SOCOM missions.

This requisition supports hiring at multiple experience levels. Final placement will be determined based on the selected applicant’s qualifications, experience, and skill sets.

STINGRAI: Advancing Mission Success Through Intelligence, Innovation, and Operational Excellence

Every day, HII helps U.S. Southern Command (SOUTHCOM) and its mission partners stay ahead of evolving threats by delivering the intelligence, technology, and operational expertise needed to protect U.S. interests across the Western Hemisphere. Join our team on STINGRAI and support mission‑critical operations through advanced intelligence, surveillance, cyber, engineering, and all‑domain capabilities that strengthen regional security, enable informed decision‑making, and help defend our nation today while preparing for tomorrow’s challenges.

What You Will Do

• Design, implement, and execute network security maintenance regimens to support secure and resilient operations.
• Configure and maintain physical and virtual firewalls, including cloud‑based security appliances, in accordance with DoD and SOCOM requirements.
• Work closely with the customer’s Security Officer to support and enhance the organization’s security program.
• Implement the technical aspects of the customer’s cybersecurity program, ensuring compliance with applicable DoD policies.
• Facilitate internal and external security audits, assessments, and inspections.
• Translate cybersecurity and operational requirements into compliant and secure network configurations.
• Provide full lifecycle support for firewalls, switches, wireless networks, and associated network security components.
• Monitor network performance and implement improvements to enhance reliability, efficiency, and security.
• Perform root cause analysis of security incidents and network‑related events; develop and implement corrective actions.
• Develop, document, and maintain complex network configurations and architecture documentation.
• Analyze existing network schemas and configurations to identify vulnerabilities and recommend security enhancements.
• Apply structured engineering methodologies to plan, coordinate, and implement network security projects.

What We Are Looking For

• 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; or High School Diploma or equivalent and 9 years relevant experience.
• Experience providing network security engineering or cybersecurity support to SOCOM, DoD agencies, or other government defense programs.
• Knowledge of DoD network security policies, firewall administration, and secure network architecture best practices.
• Experience configuring and maintaining firewalls, network switches, wireless infrastructure, and virtual/cloud security appliances.
• Ability to translate security requirements into compliant network configurations aligned with DoD cybersecurity standards.
• Experience conducting root cause analysis of security incidents and implementing risk mitigation strategies.
• Knowledge of network performance monitoring, troubleshooting techniques, and optimization practices.
• Ability to develop and maintain network diagrams, configuration baselines, and technical documentation in accordance with DoD guidelines.
• Strong understanding of secure network protocols, segmentation, access control, and defensive cybersecurity measures.
• Ability to collaborate with Security Officers, engineers, system administrators, and government stakeholders to resolve technical issues.
• Strong written and verbal communication skills, with the ability to prepare documentation and brief technical concepts.
• Clearance: Must possess and maintain a Top‑Secret clearance.

Preferred: Bonus Points For...

• Prior experience supporting special operations networks, tactical communications, or DoD enterprise network environments.
• Familiarity with DISA STIGs, DoD RMF requirements, and associated compliance standards.
• Experience performing network security audits, vulnerability assessments, and remediation planning.
• Knowledge of SIEM platforms, intrusion detection/prevention systems, and enterprise cyber defense tools.
• Professional certifications such as Security+, Network+, CCNA/CCNP, GSEC, or other DoD 8570‑compliant certifications.
• Experience with project planning, structured implementation methodologies, or large‑scale network upgrades.

Physical Requirements

May require working in an office, industrial, shipboard, or laboratory environment. Capable of climbing ladders and tolerating confined spaces and extreme temperature variances.

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.

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. Apply today. We look forward to meeting you.

To learn more about Mission Technologies, click here for a short video: https://vimeo.com/732533072

HII is more than a job – it’s an opportunity to build a new future. We offer competitive benefits such as 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; as well as early childhood and post‑secondary education scholarships. Bonus/other non‑recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.

Why HII

We build the world’s most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

Recognized as one of America’s top large company employers, we are a values and ethics driven organization that puts people’s safety and well‑being first. Regardless of your role or where you serve, at HII, you’ll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.

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.