Senior Network Engineer

leidos· 00100 LEIDOS, INC.
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📍 9187 Chantilly VA Home OfficeFull time💰 USD 131K–237K

About this role

Leidos is searching for an experienced and fully cleared Network Engineer to join our team in Chantilly, VA.

The team is made-up of highly technical and motivated individuals. The engineer for this role will assist in troubleshooting complex problems and implementing cutting-edge solutions. As such, this individual must be an excellent problem solver and work well in a collaborative team environment. Candidate must have proven hands-on experience working as a network engineer. OCONUS experience is highly desired.

50% travel to OCONUS location.

The program is made up of CONUS and OCONUS teams who regularly interact across varying time zones. As a result, the candidate must have excellent communication skills and be flexible with regards to teamwork and tasking. A demonstrated ability to perform in cross-functional teams to achieve results in a timely manner is desired.

Primary Responsibilities:

  • Install, configure, and troubleshoot network appliances (routers, switches, and firewalls)

  • Monitor entire network infrastructure (LAN & WAN) and provide regular reporting

  • Collaborate closely with the Chief Engineer to ensure network optimization and the completion of other tasks

  • Ensure network uptime, performance, and security

  • Document and enforce network standards

  • Manage and maintain IP addressing schema

  • Travel OCONUS as needed

  • Maintain network lab in Chantilly, VA

REQUIRED Skills, Experience, and Education:

  • Master's degree and at least 12 years minimum experience depending on education, training, skills and experience. Experience requirement may be reduced with Doctorate degree in network engineering, computer science, or related subject.

  • Must possess an active and in-scope TS/SCI With Poly to be considered

  • Active/current basic CCNA certification

  • Solid understanding of OSI or TCP/IP model

  • Hands-on experience with network monitoring, network diagnostics, and network analytics tools

  • Experience configuring/troubleshooting Cisco appliances

  • Experience configuring/troubleshooting routing and switching, including routing protocols

  • Experience writing scripts for Cisco switches, routers, and firewalls

  • Ability to work well individually, as well as within a team environment, and always maintain professional behavior with all stakeholders.

  • Ability to lift 50 lbs. and climb 30 ft.

Desired Qualifications:

  • CCNA/CCNP Security certification

  • Experience working with Cisco ASA/Firepower and Juniper SRX appliances

  • Experience implementing and troubleshooting IPSec VPN tunnels

  • Deep understanding of networking protocols, i.e., IPSEC, EIGRP, OSPF, QoS

  • Experience installing and troubleshooting iDirect VSATs

  • Experience using Solarwinds Performance Monitor and Configuration Manager

  • Experience implementing and troubleshooting AWS

  • Experience implementing and troubleshooting VoIP & PBX systems

  • Experience implementing and troubleshooting Asterisk

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 2, 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 $131,300.00 - $237,350.00

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.

Frequently Asked Questions

What is the salary for the Senior Network Engineer role at leidos?
The listed salary for this Senior Network Engineer position at leidos is USD 131K–237K. This is an Full time role.
Where is the Senior Network Engineer position at leidos located?
This Senior Network Engineer role at leidos is based in 9187 Chantilly VA Home Office. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Network Engineer role at leidos full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Network Engineer role in the 00100 LEIDOS, INC. department at leidos.
Which team or department does the Senior Network Engineer at leidos belong to?
This Senior Network Engineer position is part of the 00100 LEIDOS, INC. department at leidos. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Network Engineer position at leidos?
Click the "Apply Now" button on this page. You will be redirected to leidos's official application portal hosted on workday where you can submit your application directly.
When was the Senior Network Engineer job at leidos posted?
This Senior Network Engineer position at leidos was posted on Sep 2, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Network Engineer
leidos · 💰 USD 131K–237K
Apply for this role ↗

You'll be redirected to leidos's official application page on Workday.