Systems Administrator

Leidos; Las Vegas (NV); On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking a seasoned System Administrator for a mission‑critical role at Nellis AFB, NV. You will oversee JWICS operations across Wing and SCIFs, install and sustain essential C4I systems, and support contingency planning to fortify mission success.

The ideal candidate holds an active TS/SCI clearance, Security+ certification, a Bachelor's degree, and 10+ years of relevant experience (or 8+ years with a Master’s). RMF and XACTA experience are highly valued.

Qualifications

• Active TS/SCI clearance required to start.
• Bachelor's degree with 10+ years of relevant experience, or 8+ years with a Master’s degree.
• Deep knowledge of JWICS operations and AD management.
• Experience with RMF and XACTA is highly desired.

Responsibilities

• Oversee JWICS operations across Wing and SCIFs.
• Install, configure, and sustain essential C4I systems.
• Manage security controls and patch management.
• Coordinate with Air Force cybersecurity teams to resolve issues.
• Advise on technical documentation and reports.

Skills

Active TS/SCI clearance

Security+ certification

JWICS operations knowledge

Active Directory management

Trouble ticketing tools

Security controls

Education

Bachelor's degree

Master's degree

10+ years of relevant experience

Tools

RMF

XACTA

Job description

Unlock Your Potential as a seasoned System Administrator at Nellis AFB, NV! Leidos is searching for a highly skilled and driven System Administrator to take on a mission‑critical role at Nellis Air Force Base. If you're a technical powerhouse with a passion for cybersecurity and innovation, this opportunity is tailor‑made for you!

What You’ll Do:

As a System Administrator, you will be overseeing JWICS operations across Wing and subordinate unit SCIFs. You’ll ensure seamless Command, Control, Communications, Computers, and Intelligence (C4I) operations, performing vital touch maintenance to install, configure, and sustain essential systems. Whether managing network storage, user privileges, local authentication servers, or spearheading contingency planning, your expertise will fortify mission success at every turn.

Key Responsibilities

• Solve real-world cybersecurity challenges by investigating malware, spyware, Trojans, and unauthorized software threats.
• Be the bridge between site users and Air Force cybersecurity teams, resolving network issues with precision and speed.
• Own the security landscape—push patches, oversee system upgrades, and ensure compliance with critical security protocols.
• Drive impact autonomously while also collaborating with top‑tier professionals in a high‑stakes environment.
• Advise on technical documentation, assisting government agencies in creating SSO documents, reports, and operational briefings.
• Safeguard sensitive data with advanced SCI security support functions while maintaining access to classified JWICS systems.

What We’re Looking For

• Active TS/SCI clearance (required to start).
• Security+ certification to showcase your cybersecurity prowess.
• Bachelor's and 10+ years of relevant experience (or 8+ years with a Master’s degree). Additional experience may be considered in lieu of degree.
• Deep knowledge of JWICS operations, Active Directory management, trouble ticketing tools, and security controls.
• A proactive mindset—you’re not just solving problems; you’re anticipating them.
• Experience with RMF & Xacta (highly desired).

Why Join Leidos?

This is more than a job—it’s a career-defining opportunity to make an impact in national defense, collaborate with elite professionals, and push the boundaries of cybersecurity excellence. Ready to take on the challenge?

AMSOPP1

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting

August 31, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range

Pay Range $73,450.00 - $132,775.00. The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay And Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.