Systems Network Administrator (TS/SCI w/ Poly)
Leidos – National Security Sector | Cyber & Analytics Business Area (CABA)
Leidos is seeking a Systems Network Administrator / MIM Administrator (SME) to join our National Security Sector’s Cyber & Analytics Business Area (CABA). This team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, SIGINT, and advanced analytics, delivering mission-critical capabilities that directly support national security.
If you’re looking to work on high-impact systems in a mission-driven environment—while deepening your expertise in Identity & Access Management (IAM)—this is an opportunity to make a real difference.
Why Leidos?
At Leidos, you’ll work on meaningful missions with cutting-edge technologies—while being supported in your career growth.
We offer:
- 401(k) with 6% match + immediate vesting
- Generous PTO + 11 paid holidays
- Flexible work schedules
- Paid parental leave
- Technical upskilling, training, and education support
- Employee stock purchase plan
- And more
What You Bring
Core Experience:
- Strong experience supporting enterprise IT systems and infrastructure
- Advanced troubleshooting across Windows-based environments
- Hands-on expertise with: Microsoft Identity Manager (MIM) / Forefront Identity Manager (FIM); MS SQL Server (connectivity, maintenance, backups—not DBA-level)
- Deep understanding of Identity lifecycle management (Joiner–Mover–Leaver); Data flow and synchronization across systems
Technical Skills:
- MIM/FIM (MIM 2016 or FIM 2010 R2)
- PowerShell (advanced) – including use with MIM Workflow Activity Library (MIMWAL)
- Windows Server Infrastructure – AD, DNS, Group Policy
- C# / .NET – ability to develop and maintain custom rules and workflow extensions
- Experience with SQL Server (FIM Service & Sync DBs)
Familiarity with flat file integrations (or ability to learn quickly)
Basic Qualifications
- 10+ years of experience as a Systems Administrator or similar role
- Bachelor’s degree in a technical field (or 5 additional years of experience in lieu of degree)
- IAT Level II certification or higher (e.g., Security+, Microsoft, VMware, etc.)
- Active TS/SCI with Polygraph (required)
Preferred Qualifications
- Familiarity with Microsoft's EntraID
Make an Impact
- Join a team where your work directly supports national security and mission success. At Leidos, your expertise matters—and your growth does too.
- Apply today: careers.leidos.com
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:April 7, 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
- 10+ years of experience as a Systems Administrator or similar role
- Bachelor's degree in a technical field or 5 additional years of experience in lieu of degree
- IAT Level II certification or higher
- Active TS/SCI with Polygraph
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.
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