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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.
If this sounds like a mission you want to be a part of, keep reading!
Leidos is seeking a System Administrator to support a large enterprise IT contract for the DOD.
This role requires an individual that has technical experience with administering Linux and Windows servers within a VMware virtual environment. This individual should be detail oriented in order to capture customer inquiries appropriately. This role is responsible for interacting with other administrators to handle service inquiries and problems. Duties include examining customer problems and suggesting and implementing appropriate corrective action to initiate a repair or return to service. This role analyzes recurring problems and initiates solutions for preventing reoccurrence and analyzes existing infrastructure for tuning/performance enhancements. The individual will provide systems and software operations and maintenance support in a large, multi-enclave enterprise environment. This individual will work in a team environment to ensure mission needs are met and ensure functionality of capabilities of customers. Individuals in this role may be required to perform technical software configuration, rebooting, and other remedial actions on customer servers.
Primary Tasks
- Experience with interacting with customers to handle service inquiries and problems.
- Provide technical support, administration, and monitoring of Linux, Microsoft, and Mac systems within a VMware virtual environment.
- Provide support for the implementation, troubleshooting and maintenance of IT systems. Rapidly distinguish isolated user problems from enterprise-wide application/system problems.
- Coordinate with customers and stakeholders to collect data, conduct analysis, develop, and implement solutions associated with incident tickets and requirements.
- Develop solutions to complex technical issues.
- Provide follow-up reports (technical findings, feedback, resolution steps taken) for Root Cause analysis, engineering technical assessment and process improvement initiatives.
- Support customer requirements in a 24/7/365 environment and be able to provide on-call support during outages occurring after hours.
- Update operations and monitoring documentation for 24/7/365 Operations Watch personnel.
Basic Qualifications
- Foundational knowledge of AWS or Azure cloud services and the cloud ecosystem.
- Familiarity with Hyper Converged Infrastructure (HCI) concepts and solutions such as Dell VXRail.
- Experience with Tier 2 system administration of server operating systems such as Linux (CentOS, RHEL, or Ubuntu) and Microsoft Server (2012 R2/2016).
- Familiarity with supporting virtual desktops running Linux, Microsoft Windows, and/or MacOS.
- Experience with Scripting/Automation through Linux Shell scripts, PowerShell, PowerCLI, or other scripting languages.
- Experience troubleshooting issues in a growing environment.
- Experience with log reviews, incident analysis, and identification of issue trends.
- Experience with server patch management methodologies.
- Time management skills with the ability to work within an IT Service Management/ticketing system (ServiceNow) independently.
- Ability to triage and properly classify incidents and prioritize work efforts accordingly.
- Strong oral and written communications skills.
- Track record of working effectively within a team, and support to peers toward improved processes and results.
- Candidate must, at a minimum, meet DoD 8570.11- IAT Level II certification requirements (currently Security+ CE, CCNA-Security, GSEC, or SSCP).
Clearance
- Due to the nature of the government contracts, we support, US Citizenship is required.
- Current TS/SCI with the ability to obtain an maintain a polygraph.
Education/Experience
- The candidate must have bachelor’s degree with 8 years of prior relevant experience or a master’s degree with 6 years of prior relevant experience, associate's with 10 years, or high school diploma with 12 years.
Preferred Qualifications
- Certification relating to VMware (VCA/VCP), Microsoft Server Administration (MCSA), Linux Administration (Linux+), or Mac Administration (ACSP) a plus.
- Experience with Ansible, Satellite, Puppet, Chef, a plus.
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:September 16, 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
- Bachelor’s degree and 8 years of relevant experience, or master’s degree and 6 years, associate’s degree and 10 years, or high school diploma and 12 years
- Tier 2 system administration experience with Linux servers, including CentOS, RHEL, or Ubuntu
- Experience administering Microsoft Server systems, including Windows Server 2012 R2 or 2016
- Experience supporting Linux, Windows, and/or Mac virtual desktops
- Experience administering Linux and Windows servers in a VMware virtual environment
- Foundational knowledge of AWS or Azure cloud services
- Familiarity with Hyper Converged Infrastructure concepts and solutions such as Dell VxRail
- Experience with scripting or automation using Linux Shell, PowerShell, PowerCLI, or other scripting languages
- Experience troubleshooting issues in a growing environment
- Experience with log reviews, incident analysis, and issue trend identification
- Experience with server patch management methodologies
- Ability to work independently within an IT service management or ticketing system such as ServiceNow
- Ability to triage, classify, and prioritize incidents
- Strong oral and written communication skills
- Ability to work effectively on a team and support process improvement
- DoD 8570.01 IAT Level II certification, such as Security+ CE, CCNA-Security, GSEC, or SSCP
- U.S. citizenship
- Current TS/SCI clearance and ability to obtain and maintain a polygraph
- VMware certification such as VCA or VCP
- Microsoft Server Administration certification such as MCSA
- Linux Administration certification such as Linux+
- Mac Administration certification such as ACSP
- Experience with Ansible, Satellite, Puppet, or Chef
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.
