Leidos has an opening for a Systems Administrator in Reston Virginia.
Responsibilities include installation, configuration, administration, support and maintenance of systems, including associated hardware. Responsibilities may include management of systems infrastructures, implementing best practices to Identify and recommend system functional specifications, configuration of physical and virtual systems, backup and recovery of IT infrastructure. Support duties may include updating and supporting systems by tuning performance, allocating storage space. Implementing critical patches, reviewing systems performance logs to identify anomalies and troubleshoot issues.
Candidate must also be able to develops solutions to complex technical issues and problems that impact multiple area or disciplines and regularly employ ingenuity and creativity to develop new technical solutions and systems in order to achieve functional objectives.
Basic Qualifications
- TS/SCI Clearance is required to be considered. Must be willing/able to obtain a TS/SCI w/polygraph
- Must be a US Citizen
- Ability to communicate with internal team members across multiple areas and client team members.
- Requires deep understanding of and ability to apply principles, theories, and concepts of technical domain and has broad understanding of other related specialty areas.
Typical Education & Experience: - Typically requires BS and 4 – 8 years of prior relevant experience or Masters with 2 – 6 years of prior relevant experience. Relevant work experience will be considered in lieu of degree.
- Experience with DISA STIGs.
- Experience with ACAS/Nessus.
- Experience in utilizing Microsoft operating systems to deploy, manage, and support applications and services, ensuring system reliability and user productivity.
- Ability to administer Active Directory (AD) to manage user accounts, permissions, and access controls across the network.
- Experience in automating IT tasks and processes using Microsoft PowerShell scripting to improve efficiency and productivity.
- Experience in overseeing security measures to protect organization from possible threats. Identify security requirements and risks and develop mitigation policies.
- Experience in managing server infrastructure to ensure reliability, performance, and security of organizational systems and applications.
- Experience in managing and configuring IT infrastructure to ensure optimal performance, security, and availability of services, while troubleshooting and resolving issues as they arise.
- Ability to create and enhance systems to meet organizational requirements and specifications while ensuring compatibility and compliance.
- Ability to implement systems and applications to support organizational initiatives and workflows effectively.
- Experience in managing complex systems throughout their life cycles and integrating various components, subsystems, or processes.
- Experience in providing technical assistance for related issues, ensuring timely resolution of problems, and maintaining optimal system performance and user satisfaction.
- Ability to identify and resolve technical issues that arise within a complex system or network infrastructure.
- Experience in implementing and managing virtual environments to optimize resource utilization, enhance scalability, and ensure system reliability.
Preferred Qualifications (1 or more)
- AWS Certified Cloud Practioner
- CompTIA A+
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 13, 2026For 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.
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.
Skills Required
- TS/SCI clearance (willing/able to obtain TS/SCI with polygraph)
- Must be a US Citizen
- Ability to communicate with internal and client team members
- Deep understanding of technical domain principles and related specialty areas
- BS with 4-8 years relevant experience or MS with 2-6 years (or equivalent experience)
- Experience with DISA STIGs
- Experience with ACAS/Nessus
- Experience using Microsoft operating systems to deploy, manage, and support applications/services
- Ability to administer Active Directory (user accounts, permissions, access controls)
- Experience automating IT tasks using PowerShell scripting
- Experience overseeing security measures and developing mitigation policies
- Experience managing server infrastructure for reliability, performance, and security
- Experience implementing and managing virtual environments
- Ability to troubleshoot complex technical issues across multiple areas/disciplines
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. 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 newly launched 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.
