System Administrator

Leidos; Robins Air Force Base (GA); On-site; USD 92,000 - 167,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with 6% match

Flexible Schedules

Education and Training Support

Parental Paid Leave

Job summary

Leidos is seeking a Windows System Administrator to support a high‑tempo program at Robins AFB. Requires minimum Secret clearance and eligibility for TS SCI; you will perform daily systems administration across multiple environments.

Responsibilities include monitoring, patching, IAVA management, and collaboration with cross‑functional teams to sustain secure, reliable operations.

Qualifications

• Bachelor’s degree and 10 years of relevant experience; DoD Secret to start; TS/Sci eligibility.
• 5+ years of Windows administration experience.
• 3+ years in information security management, governance, risk and operational security.
• Active IAT Level II baseline certification upon hire (e.g., Security+ CE).
• Experience with Windows and Linux operating systems.

Responsibilities

• Monitor and administer systems, applications, and processes; identify, track, and resolve issues.
• Maintain multiple virtual server clusters and use enterprise monitoring tools.
• Provide technical support and collaborate across partner workgroups.
• Manage IAVA, system security scans, patch deployments, and remediation.
• Identify and resolve hardware and software problems; document clearly.
• Plan IT enhancements and support project-related work.

Skills

Windows administration

Active Directory

DNS management

Group Policy Objects (GPOs)

PowerShell scripting

Information security governance

IAVA management

System monitoring

Technical collaboration

Education

Bachelor’s degree in Information Technology or related field

Tools

Microsoft Exchange

Windows Server

M365/Exchange administration

PowerShell

IAVA management tooling

Tenable security technologies

Trellix security technologies

Job description

About the Role

Join a team committed to a mission! At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Are you ready for your next career challenge? Leidos is seeking a Windows System Administrator (requires minimum Secret clearance and individual must qualify for TS SCI) to join our high‑performing team in support of a complex, fast‑paced program. In this role, the selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint. Key responsibilities include supporting operational requirements, as well as engineering assistance, deploying, and sustaining new capabilities within the environment. You will be working at Robins AFB and be part of our talented team at the forefront of technology.

Benefits

• Paid Time Off
• 11 paid Holidays
• 401K with a 6% company match and immediate vesting
• Flexible Schedules
• Discounted Stock Purchase Plans
• Technical Upskilling
• Education and Training Support
• Parental Paid Leave
• and much more.

Primary Responsibilities

The selected candidate will be responsible for monitoring and administrating systems, applications, and processes to ensure issues are identified, tracked, and resolved in a timely manner.

Additional Responsibilities

• Maintaining multiple virtual server clusters
• Using enterprise monitoring tools to detect, assess, and respond to alerts.
• Providing technical support to partner workgroups on overlapping efforts while maintaining strong interdepartmental collaboration.
• Managing Information Assurance Vulnerability Alerts (IAVAs) and system security scanning in accordance with applicable System Security Plans, ensuring vulnerabilities are identified and remediated quickly and accurately.
• Initiating IAVA responses and system security scans, completing remediation actions, deploying patches and security updates to designated sites, and executing monthly security scans.
• Identifying and resolving hardware and software problems.
• Proactively notifying customers when test infrastructure delays may affect their ability to complete business functions on time and communicating system outages and publishing status updates to users, as needed.
• Authoring and maintaining clear, accurate, and concise documentation.
• Responding to calls and emails in a timely and professional manner.
• Planning and implementing IT enhancements and supporting project-related work.
• Addressing system scan findings, vulnerability management patching.

Basic Qualifications

• Clearance Required: Must be eligible for TS/SCI. Minimum of aDoD Secret to start.
• Bachelor’s degree, in Information Technology, or a related technical field and 10 years of prior relevant experience. Additional experience may be substituted for a degree.
• Must have at least 5 years of Windows administration experience.
• Must have at least 3 years of experience in information security management, with demonstrated expertise in security governance, risk management, compliance, and operational security functions.
• Have strong analytical skills, attention to detail, and the ability to work effectively both independently and as part of a team.
• Individual in this position must possess and maintain an active Information Assurance Technical (IAT) Level II baseline certification (CompTIA Security+ CE or higher) upon hire.
• Must have at least 3 years of experience with each of the following:
  • Implementing and managing Windows Active Directory and DNS environments
  • Creating and managing Group Policy Objects (GPOs)
  • Microsoft MCM
  • Microsoft Exchange administration and Exchange Management Shell
• Must have experience with Windows Command Line, PowerShell, and PowerShell scripting.
• Strong understanding of advanced security protocols, standards, and information security principles is a must.
• Experience with software and security architecture.
• Hands‑on experience with IAVA management.
• Hands‑on experience supporting users, optimizing system operations, and monitoring enterprise IT systems.
• Commitment to best practices, including compliance with maintenance windows and changing control procedures.
• Experience with Windows and Linux operating systems.

Preferred Qualities

• Experience documenting and supporting security accreditation and certification activities.
• Experience with Tenable and Trellix security technologies.
• Experience with data center design and configuration, including rack-and-stack, power planning, and equipment placement.
• Experience with VMware VCF 9.0.2.
• Experience serving in a System Administrator role supporting software configuration management and classified environments.

Why You’ll Love This Role

DABAOPP1 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.

Posting Information

Original Posting: October 14, 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 $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline only and 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 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 $17.2 billion for the fiscal year ended January 2, 2026. 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 here.

Data Security

Leidos will never ask you to provide payment‑related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment‑related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.