Systems Administrator (Network Communications 2)
Date: Jun 26, 2026
Location: San Diego, CA, California, United States
Company: HII's Mission Technologies division
Requisition Number: 28987
Required Travel: 0 - 10%
Employment Type: Full Time/Salaried/Exempt
Anticipated Salary Range: $72,933.00 - $100,000.00
Security Clearance: Secret
Level of Experience: Mid
This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business.
As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece-parts.
For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life-cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness.
HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients’ toughest nuclear and environmental challenges.
Leadership Mindset at HII – Mission Technologies
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.
These capabilities guide how all employees contribute to our shared success across Mission Technologies.
Come Join HII! Where Hard Stuff is Done Right!
The Navy Integrated Training Environment (NITE) System Administrator is responsible for operating, maintaining, and troubleshooting server, workstation, and enterprise system services on the Navy Enterprise Tactical Training Network (NETTN). The candidate will support the operation and maintenance of multiple systems across different classification levels and help ensure reliable system availability for our customers and site operations.
This position provides direct system administration support. Responsibilities include creating and maintaining user accounts and permissions in Active Directory, managing group policy objects, supporting Windows Server environments, maintaining DNS records and organization, managing server roles and features, troubleshooting system access issues, and supporting Information Assurance compliance. The candidate will also assist with eSTIG scanning, documentation of findings, remediation actions, patching, system hardening, and maintaining technical documentation for supported systems.
Responsibilities: I want to and can do that!
• Maintain the smooth operation of servers, workstations, and supporting enterprise services.
• Create, maintain, and troubleshoot user accounts, security groups, permissions, and access rights within Active Directory.
• Configure, manage, and troubleshoot Group Policy Objects to support system security, compliance, and operational requirements.
• Support Windows Server administration, including server roles, features, services, and routine maintenance.
• Maintain DNS records, naming organization, and related system documentation to support reliable network and system operations.
• Perform system troubleshooting for authentication, access, server availability, workstation issues, and application or service interruptions.
• Support Information Assurance compliance activities, including eSTIG scanning, STIG checklist review, finding documentation, and remediation.
• Assist with patch management, software updates, vulnerability remediation, and system hardening efforts.
• Prepare or ensure that appropriate system documentation exists, including operational instructions, troubleshooting steps, and configuration records.
• Coordinate with network administrators, cybersecurity personnel, customers, and third-party support teams to resolve system issues and maintain operational readiness.
• Monitor supported systems and recommend improvements to maintain reliability, security, and performance.
Requirements: I have already done that or have it!
• 2 years relevant experience with a Bachelor's in a related field; 0 years experience with a Master's in a related field; or High School Diploma or equivalent and 6 years of relevant experience.
• Must currently possess, and be able to maintain, an active U.S. Secret security clearance.
• Current IAT Level II certification, such as CompTIA Security+.
• Hands-on experience in system administration, Windows Server administration, or enterprise IT support.
• Experience with Active Directory account management, security groups, permissions, and user access troubleshooting.
• Experience supporting Windows-based systems, workstations, servers, and related enterprise services.
• Strong team-oriented professional with effective communication skills, ethical judgment, and the ability to document and communicate technical issues clearly.s
Preferred Requirements
• Microsoft, VMware, Red Hat, or other relevant system administration certification.
• Demonstrated experience with Windows Server roles, Group Policy, DNS, and Active Directory administration.
• Familiarity with DoD Security Technical Implementation Guides (STIGs), eSTIG scanning, checklist review, finding documentation, and remediation.
• Experience with patch management, vulnerability remediation, and system hardening in a DoD or enterprise environment.
• Experience with virtualization platforms, server monitoring, backup processes, or enterprise management tools.
• Familiarity with troubleshooting authentication, smart card, certificate, DNS, and time synchronization issues.
• Ability to work with cybersecurity, network, and customer support teams to identify, track, and resolve system issues.
Physical Requirements
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. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. 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 buildyourcareer@hii-co.com 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.