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$73k–$133k/yr
Full-time
bachelor degree, postgraduate degree, professional certificate
Posted 1d ago
~40 hrs/week
Responsibilities
Administer and maintain advanced Windows server environments and enterprise services for the U.S. Navy Fleet Command. Responsibilities include system monitoring, troubleshooting complex issues, and implementing security vulnerability alerts (IAVAs/IAVBs).
Requirements
Requires an active TS/SCI clearance, CompTIA Security+ certification, and a Windows Server operating system certification. Candidates need a Bachelor's degree with 7+ years of experience or a Master's degree with 5+ years of experience.
Full job description
Windows Systems Administrator
Location: Naples, Italy
Security Clearance: Active TS/SCI Required
Leidos is seeking a Windows Systems Administrator III to support mission critical infrastructure for the U.S. Navy Fleet Command in Naples, Italy. In this role, you will administer and maintain Windows server environments supporting enterprise infrastructure, standardized desktop services, and secure mission operations. The ideal candidate has extensive experience managing Microsoft technologies, troubleshooting complex systems, and maintaining secure, high availability Windows environments.
Primary Responsibilities
Administer and manage advanced Windows Server environments and Microsoft enterprise services.
Maintain daily system operations by monitoring, identifying, troubleshooting, and resolving issues affecting servers, applications, and operating systems.
Perform performance tuning, hardware upgrades, and resource optimization to ensure reliable system performance.
Troubleshoot and resolve complex Windows Server issues.
Research, document, and recommend new system technologies and improvements.
Review and implement Information Assurance Vulnerability Alerts (IAVAs) and Information Assurance Vulnerability Bulletins (IAVBs).
Install, configure, secure, maintain, document, troubleshoot, and administer SQL databases to ensure optimal performance.
Support global operations by maintaining secure, resilient Windows infrastructure environments.
Travel may be required to support other U.S. Navy commands both within the continental United States (CONUS) and outside the continental United States (OCONUS).
Required Qualifications
Bachelor's degree with 7+ years of relevant experience or a Master's degree with 5+ years of relevant experience. Additional relevant experience may be considered in lieu of a degree.
Active TS/SCI clearance (in DISS).
Active CompTIA Security+ certification and an active Windows Server operating system certification.
Extensive experience administering enterprise Windows environments, including Active Directory (AD), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Microsoft Exchange email services, Microsoft Azure Cloud, Remote Desktop Services, VMware, Omnissa, desktop management, and Windows Server services.
Experience performing advanced system troubleshooting.
Strong interpersonal and communication skills.
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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:
July 26, 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 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.
Related keywords
Windows ServerActive DirectoryDNSDHCPMicrosoft ExchangeMicrosoft AzureVMwareOmnissaSQLTS/SCICompTIA Security+IAVAIAVBEnterprise InfrastructureU.S. NavySystem Administration
An industry & technology leader serving government & commercial customers with smarter, more efficient innovations
Industry
Defense and Space Manufacturing
Company size
10,001+ employees
Founded
1969
Headquarters
Reston, Virginia
LinkedIn followers
580,212
Leidos is an industry and technology leader serving government & 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.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
Offices: 1750 Presidents St, Reston, Virginia 20190, US · 11955 Freedom Drive, Reston, VA 20190, US · 1145 N 2nd St, Leavenworth, KS 66048, US · 9600 Great Hills Trail, Austin, TX 78759, US · 221 3rd St, Newport, RI 02840, US
Based on 274 listings with disclosed salaries, most consulting jobs in Reston, VA pay between $75k–$201k per year. Individual offers vary with seniority, company size, and specialization.
How many Consulting jobs are open in Reston, VA right now?
There are currently 384 open consulting positions in Reston, VA listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Consulting roles in Reston, VA?
Companies currently hiring include ICF Next, Booz Allen Hamilton, CapTech, Kimley-Horn, Peraton, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Consulting jobs in Reston, VA?
Yes — 208 of the 384 open consulting positions offer remote or hybrid work (99 remote, 109 hybrid).
How do I apply for Consulting jobs in Reston, VA?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.