About Leidos Leidos is a FORTUNE 500® company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and health industries. We deliver innovative solutions throug…
Skills: System Administration, UNIX, Linux, Windows, Virtualization
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2027 PhD Graduate Software Engineering/ML/Data Scientist - Intelligence Systems
Laurel, Maryland, United States · On-site
Entry level
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$92k–$167k/yr
Full-time
bachelor degree
Posted 14d ago
~40 hrs/week
Responsibilities
The Senior System Administrator will manage the daily configuration, operation, and maintenance of IT systems across diverse environments including UNIX, Linux, and Windows. They will also provide advanced troubleshooting and Tier 2 support to resolve complex technical issues and ensure system integrity.
Requirements
Candidates must possess a TS/SCI clearance with Polygraph and at least ten years of relevant system administration experience. A bachelor's degree in a technical discipline is required, though additional experience may be substituted for the degree.
Full job description
About Leidos
Leidos is a FORTUNE 500® company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and health industries. We deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. Guided by our Mission, Vision, and Values, Leidos empowers its teams, contributes to its communities, and operates sustainably—always with a commitment to doing the right thing for our customers, our people, and our community.
The Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support Intelligence Community customers as they address evolving national security challenges.
About the Opportunity
Leidos is seeking an experienced Senior System Administrator to support the implementation, operation, troubleshooting, and maintenance of IT systems and infrastructure. You will manage day-to-day system operations across client/server, storage, network, mobile, and virtual environments while diagnosing technical problems and supporting reliable system performance.
You will administer UNIX, Linux, Windows, and virtual operating environments; support escalated technical issues; configure network components; implement operating-system enhancements; and provide detailed technical analysis to agency management and internal customers.
Why This Role Matters
Reliable IT infrastructure requires experienced administrators who can move beyond routine operations to diagnose complex problems, support escalated issues, maintain system integrity, and improve performance.
As a Senior System Administrator, you will help ensure critical IT systems remain available, reliable, secure, and responsive to operational needs.
What You'll Do
Systems & Infrastructure Administration
Manage daily configuration and operation of IT systems.
Support implementation, troubleshooting, and maintenance of IT systems and associated infrastructure.
Monitor and support day-to-day operations across client/server, storage, network, mobile, and related devices.
Configure and manage UNIX, Linux, Windows, virtual, and other applicable operating-system environments.
Install and load operating-system software, troubleshoot system issues, and maintain system integrity.
Configure network components and implement operating-system enhancements to improve reliability and performance.
Optimize system operations and resource utilization and perform system-capacity analysis and planning.
Support security and STE/STN compliance of system software and hardware as required.
Advanced Troubleshooting & User Support
Provide in-depth troubleshooting of IT systems.
Assist users in accessing and using IT systems.
Provide Tier 1 Help Desk and Tier 2 escalation support for problem identification, diagnosis, and resolution.
Support dispatch-system and hardware problems and remain engaged through resolution.
Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
Communicate system status, technical issues, and resolution progress to agency management and internal customers.
This posting is for multiple opportunities
Required Qualifications
Clearance
TS/SCI with Polygraph at the time of Application, to be considered for the position.
Education & Experience
Ten (10) years of System Administration experience supporting programs and contracts of similar scope, type, and complexity.
Bachelor's degree in a technical discipline from an accredited college or university.
Five (5) additional years of System Administration experience may be substituted for the bachelor's degree.
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 28, 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.
Related keywords
System AdministrationUNIXLinuxWindowsVirtualizationNetwork ConfigurationTS/SCIPolygraphInfrastructureTroubleshootingHelp DeskCapacity PlanningSecurity ComplianceHardwareClient/ServerStorage
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
587,928
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
How many Software jobs are open in Laurel, MD right now?
There are currently 271 open software positions in Laurel, MD listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Software roles in Laurel, MD?
Companies currently hiring include Johns Hopkins Applied Physics Laboratory, Peraton, GliaCell Technologies, Leidos, Visionist, Inc., among others. Browse the listings above to see every active employer.
Are there remote or hybrid Software jobs in Laurel, MD?
Yes — 56 of the 271 open software positions offer remote or hybrid work (5 remote, 51 hybrid).
How do I apply for Software jobs in Laurel, MD?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.