Insider Threat Program Senior Network Engineer

leidos· 00100 LEIDOS, INC.
Apply Now ↗
📍 Lorton, VAFull time💰 USD 139K–251K

About this role

The Digital Modernization Sector at Leidos currently has an opening for a Senior Network Engineer supporting the HEITS Contract as part of the Department of Homeland Security (DHS) Insider Threat Program (ITP). This is an exciting opportunity to use your experience to support, sustain, design and evolve the network enterprise of the ITP. The ITP mission is to identify insider threats to the department by utilizing advanced analytics, monitoring, and data correlation which in turn help address and eliminate potential threat actors from compromising the DHS mission in safeguarding the homeland.

The selected candidate will be responsible for the following:

  • Support the ITP network infrastructure, perform all routine maintenance activities, provide guidance on upgrades and system recapitalization, perform availability/capacity management.
  • Oversee High Speed Guard Cross Domain solution that supports the transfer of data between multiple classification domains.
  • Support all documentation to effectively capture the configuration baseline.
  • Design and support system recapitalization plans to account for capacity growth and changes as directed by the customer.
  • Serve as the subject matter expert on all ITP network infrastructure.

Basic Qualifications:

  • Bachelors degree and (8)+ years of prior relevant experience or Masters with (6)+ years of prior relevant experience 

  • Cisco Certified Network Professional (CCNP)

  • Engineering, Deployment and operations of LAN and WAN Switches, and Firewalls ensuring seamless integration into existing network infrastructure

  • Working knowledge of defense-in-depth principles, network/HW/SW security architecture, network topology, IT device integrity, and common security elements 

  • Installs, configures, and maintain equipment including Cisco network and FW gear Cisco 2900, 4500, 9300, 9400, 6800 and Nexus 9000, and Cisco Firepower, ASA.

  • Experience with and proven methods for managing the information security incident lifecycle, including incident response, mitigation, post-action reporting, and mapping a path forward.

  • Network Management experience with Solarwinds, or WhatsUP Gold, NetQoS, NetBrain

  • Cross platform familiarity and experience with VMWARE, Linux, Microsoft Server and AD.

  • Build firewall policy and optimized rule sets for improved efficiency and threat prevention.

  • Deploy new network configuration to meet NIST/FISMA/STIG compliance requirements

  • Support ATO reviews and Audits

  • Ability to obtain DHS EOD SCI

Preferred Qualifications:

  • Master’s degree from an accredited college or university in IT Management, Engineering, or related field 

  • Proven experience (10+ years) in IT service delivery management 

  • Experience with User Activity Monitoring products and platforms

  • Experience with Everfox High Speed Guard Platform

  • Experience with Cisco, Juniper LAN/WAN network infrastructure

  • Experience with Palo Alto Firewalls

  • Certified Information Systems Security Professional (CISSP)

  • Cisco Certified Network Professional (CCNP) - Security

  • Palo Alto Networks Accredited Configuration Engineer (ACE) - PAN-OS 7.0 Version

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:

May 29, 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 $139,100.00 - $251,450.00

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 Insider Threat Program Senior Network Engineer role at leidos?
The listed salary for this Insider Threat Program Senior Network Engineer position at leidos is USD 139K–251K. This is an Full time role.
Where is the Insider Threat Program Senior Network Engineer position at leidos located?
This Insider Threat Program Senior Network Engineer role at leidos is based in Lorton, VA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Insider Threat Program Senior Network Engineer role at leidos full-time or part-time?
This is listed as a Full time position. It is posted as a Insider Threat Program Senior Network Engineer role in the 00100 LEIDOS, INC. department at leidos.
Which team or department does the Insider Threat Program Senior Network Engineer at leidos belong to?
This Insider Threat Program 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 Insider Threat Program 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 Insider Threat Program Senior Network Engineer job at leidos posted?
This Insider Threat Program Senior Network Engineer position at leidos was posted on Aug 11, 2026. Apply as soon as possible — early applications are often reviewed first.
Insider Threat Program Senior Network Engineer
leidos · 💰 USD 139K–251K
Apply for this role ↗

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