Leidos is seeking a Mid-level Forward Deployed Network Administrator to join our Network Engineering Team within the Engineering Operations group at our Chantilly, VA location. This role supports critical network infrastructure through advanced systems administration and troubleshooting tasks. The ideal candidate will be responsible for installation, configuration, administration, support, and maintenance of network systems including associated hardware, ensuring reliable and secure network operations.
- Monitor and troubleshoot network issues in support of Tier 2 tickets including port resets, activations, and break/fix baseline problems.
- Analyze syslogs, perform firewall ACL modifications, route tracing, and interface status monitoring on Cisco routers and switches.
- Execute patching, updates, and maintenance of network devices and systems.
- Support systems infrastructure management including backup, recovery, performance tuning, and storage allocation.
- Identify and recommend system functional specifications and best practices.
- Review system performance logs to identify anomalies and troubleshoot issues proactively.
- Communicate effectively with internal teams, clients, subcontractors, and vendors to influence solution design and operational approaches.
- Develop innovative technical solutions to complex multi-disciplinary network challenges.
- Must have an active TS/SCI clearance with Polygraph.
- Must have a Bachelor’s degree with at least 8 years of relevant experience, or Master’s degree with at least 6 years of experience in systems/network administration.
- Must pass or have a current Customer Medical Screening.
- Expert knowledge of network systems, including Cisco IOS commands, VLANs, firewall ACLs, and routing protocols.
- Proficiency with network monitoring and troubleshooting tools such as SolarWinds, traceroute, ping, and ARP tables.
- Experience managing and supporting physical and virtual network systems, including patching and configuration.
- Strong troubleshooting skills on Cisco routers and switches.
- Familiarity with Web Help Desk ticketing system.
- Network+ certification or equivalent is required.
- Ability to perform detailed syslog analysis and manage network interface statuses.
- Additional certifications such as CCNA, CCNP, Security+, or CISSP.
- Experience with virtualization technologies and cloud networking concepts.
- Familiarity with automation/scripting tools for network administration (e.g., Python, PowerShell).
- Prior experience in a forward deployed or government contractor environment.
- Knowledge of backup and recovery solutions and IT infrastructure best practices.
- Strong written and verbal communication skills with experience influencing cross-functional teams.
- Demonstrated ability to lead or mentor junior team members.
- Master’s degree or Doctorate in a related technical field.
Come break things (in a good way). Then build them smarter.
We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”
Original Posting:August 15, 2025For 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.
Top Skills
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.
