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  1. Home
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  5. Senior Systems Administrator (Systems Administrator 4)
Mission Technologies, a division of HII logo

Senior Systems Administrator (Systems Administrator 4)

Not Disclosed•Full-TimeOn-site

location_onBig Bully Turf, 350, Front Street, Banker's Hill, San Diego, San Diego County, California, 92101, United States

Apply Now

About the Team

This opportunity resides with Global Security (GS) within HII's Mission Technologies division. Our group comprises live, virtual, and constructive (LVC) solutions, fleet sustainment, nuclear and environmental services, and Australia business operations. As a trusted partner to military customers, HII designs, develops, and operates the largest LVC enterprise, preparing warfighters for cross-domain battle. With a holistic approach to life-cycle maritime defense systems—from small watercraft to submarines and aircraft carriers—we ensure a high state of readiness. For over 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. Additionally, we support the Department of Energy's national security mission through site management and the safe cleanup of legacy waste across the country.

Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners. We are leading the next evolution of national defense—the data evolution—by accelerating a breadth of national security solutions, ranging from C5ISR and AI to cyber operations and synthetic training environments.

About the Role

The Navy Integrated Training Environment (NITE) System Administrator serves as a critical guardian of the Navy Enterprise Tactical Training Network (NETTN). In this role, you will administer, maintain, and provide cybersecurity defense for the client and server infrastructure supporting enterprise-wide modeling and simulation applications. You will work closely with team members and other departments to update, monitor, and maintain servers and workstations across the enterprise.

Your day will involve ensuring the smooth operation of multi-user computer systems, coordinating with network administrators, and evaluating vendor products to make hardware and software recommendations. You will develop and monitor policies for computing resource allocation, manage system documentation, and tune system performance. Beyond technical maintenance, you will play a key role in training junior personnel and providing Tier 2 technical support, requiring you to work both independently and collaboratively within a team.

Leadership Mindset

At HII, leadership is a mindset, not a title. Through our Leadership Capability Framework, every team member contributes to our mission and culture by:

  • 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.

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. 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, you will 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.

Equal Opportunity

HII is an equal opportunity employer. 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.

Application & Accommodations

To learn more about Mission Technologies, you can view a short video on our website. If you need a reasonable accommodation for any part of the employment process, please send an email to buildyourcareer@hii-co.com with the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. You may also call 1-844-849-8463 and press #3 for HII Mission Technologies for assistance.

Work location

Work model: On-site

location_on

Big Bully Turf, 350, Front Street, Banker's Hill, San Diego, San Diego County, California, 92101, United States

San Diego, California

Key Responsibilities

  • check_circleUpdate, monitor, and maintain servers and workstations across the enterprise
  • check_circleDevelop standard operating procedures and provide Tier 2 technical support
  • check_circleTrain junior personnel and coordinate with network administrators for smooth system operation
  • check_circleMake hardware and software purchase recommendations and coordinate installation and backup recovery
  • check_circleDevelop and monitor policies for computing resource allocation and manage mass storage space
  • check_circleAdminister Microsoft Windows and Red Hat Enterprise Linux servers and manage Group Policy Objects
  • check_circleAdminister, maintain, and provide cybersecurity defense for Navy Enterprise Tactical Training Network infrastructure
  • check_circleCreate and modify DHCP reservations, perform patching, and ensure STIG compliance

Requirements

  • verified10 years relevant experience with Bachelor's in related field
  • verified8 years relevant experience with Master's in related field
  • verifiedHigh School Diploma or equivalent and 14 years relevant experience
  • verifiedCompTIA Security+ or equivalent certification
  • verifiedUS Secret security clearance
  • verifiedRedHat operating systems experience
  • verifiedDoD Security Technical Implementation Guides (STIG) experience

Nice to Have

Experience with Microsoft WSUS or SCCM, Linux+ or equivalent certification, Windows Servers 2016/2019 and Active Directory, Red Hat Satellite system management, Windows desktop operating systems, patching Microsoft servers and workstations, VMware, VDI technologies and protocols, and installing release upgrades.

Benefits & Perks

check_circleBest-in-class medical, dental, and vision plan choicescheck_circleSavings Plan Options (401(k))check_circlePaid holidays and paid time offcheck_circleTuition reimbursementEmployee assistance programs
Mission Technologies, a division of HII logo
Company

Mission Technologies, a division of HII

Industry

it

View company profilearrow_forwardlanguageWebsite
Quick Overview

Experience

10+ yrs (Senior)

Education

Bachelor's in related field required with 10 years experience

Job Type

Full-Time

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Skills, education and keywords

Skills: Comp Tia Security+, Linux+, Microsoft Windows, Red Hat Enterprise Linux, Red Hat Satellite, Microsoft Wsus, SCCM, Active Directory, Vmware, Vdi.

Education: Bachelor's in related field required with 10 years experience; Master's in related field required with 8 years experience; High School Diploma required with 14 years experience.

Frequently asked questions about Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII

What does a Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII do?expand_more
A Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII is responsible for the following: Update, monitor, and maintain servers and workstations across the enterprise; Develop standard operating procedures and provide Tier 2 technical support; Train junior personnel and coordinate with network administrators for smooth system operation; and Make hardware and software purchase recommendations and coordinate installation and backup recovery.
What are the requirements for this Senior Systems Administrator (Systems Administrator 4) role?expand_more
Mission Technologies, a division of HII is looking for candidates who meet the following requirements: 10 years relevant experience with Bachelor's in related field; 8 years relevant experience with Master's in related field; High School Diploma or equivalent and 14 years relevant experience; CompTIA Security+ or equivalent certification; US Secret security clearance; and RedHat operating systems experience.
Where is the Senior Systems Administrator (Systems Administrator 4) role at Mission Technologies, a division of HII located?expand_more
Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII is based in Big Bully Turf, 350, Front Street, Banker's Hill, San Diego, San Diego County, California, 92101, United States. This is a on-site role.
Is this Senior Systems Administrator (Systems Administrator 4) job remote, hybrid, or on-site?expand_more
Mission Technologies, a division of HII has listed this Senior Systems Administrator (Systems Administrator 4) role as on-site.
How much experience is required for this Senior Systems Administrator (Systems Administrator 4) role?expand_more
Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII typically requires 10+ years of relevant experience at the senior level.
What skills do you need for the Senior Systems Administrator (Systems Administrator 4) role at Mission Technologies, a division of HII?expand_more
Key skills for Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII include Comp Tia Security+; Linux+; Microsoft Windows; Red Hat Enterprise Linux; Red Hat Satellite; Microsoft Wsus; SCCM; and Active Directory.
What education is required for Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII?expand_more
Educational requirements for this role: Bachelor's in related field required with 10 years experience; Master's in related field required with 8 years experience; and High School Diploma required with 14 years experience.
What category does the Senior Systems Administrator (Systems Administrator 4) role belong to?expand_more
Senior Systems Administrator (Systems Administrator 4) at Mission Technologies, a division of HII is part of the it job category on Recrutus.
Recrutus

Curating the world's most innovative career opportunities. We bridge the gap between visionary talent and industry-leading companies.

Search roles by city, category, skill, or job type — explore verified US employers, salary benchmarks, and remote-friendly teams hiring nationwide.

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Job seekers
Browse jobsCompanies hiringRemote jobsJobs by locationJobs by cityJobs by categoryJobs by skillCareer guidesCareer blogSalary insights
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Contractor jobsFull-Time jobsIntern jobsOther jobsPart-Time jobsPer-Diem jobsTemporary jobsVolunteer jobs
Top states
Jobs in TexasJobs in CaliforniaJobs in New YorkJobs in FloridaJobs in VirginiaJobs in North CarolinaAll states →
Top categories
Healthcare & Nursing jobsLogistics & Warehouse jobsEngineering jobsIT jobsSales jobsHospitality & Catering jobsAccounting & Finance jobs
Popular skills
CDL-A jobsExcel jobsEnglish jobsMicrosoft Office jobs
Featured employers
Company
About usFAQContactPrivacy policy

Recrutus helps candidates discover roles that match their skills and helps teams reach qualified applicants faster. Browse by metro, discipline, or work style — from internships to senior leadership.

© 2026 Recrutus. All rights reserved.
Terms of serviceCookie policyAcceptable useDMCA policyEmployer termsCandidate terms
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