ITP Senior Network Engineer

Leidos LLC; Lorton (VA); On-site; USD 116,000 - 210,000; Full time

Benefits offered by this job

Competitive compensation

Health and Wellness programs

Paid Leave and Retirement

Job summary

Leidos is seeking an ITP Senior Network Engineer to support the DHS Insider Threat Program (ITP). You will sustain, design, and evolve the network enterprise, provide guidance on upgrades, and manage capacity and availability.

The role involves leading Cross Domain data transfers and maintaining baseline configurations for security and compliance. We are looking for 12–15 years of relevant experience with CCNP, defense-in-depth, and experience in managing LAN/WAN hardware, security devices, and

Qualifications

• Bachelor’s degree required with 12–15 years of relevant experience.
• CCNP certification and hands-on deployment/operations of LAN/WAN switches and firewalls.
• Experience with defense-in-depth security architecture and STIG/NIST compliance.
• Experience with network management tools and cross-domain data transfer platforms.
• Ability to obtain DHS EOD SCI clearance.

Responsibilities

• Support and design the ITP network infrastructure and perform routine maintenance.
• Oversee High Speed Guard Cross Domain solution and classify data transfers.
• Prepare configuration baselines, capacity plans, and recapitalization strategies.
• Act as SME for ITP network infrastructure and assist audits and reviews.

Skills

CCNP Certification

LAN/WAN Switches & Firewalls

Security fundamentals

Network management tools

VMware/Linux/Windows Server/AD

Incident response & forensics basics

DHS SCI eligibility

Education

Bachelor's degree in IT/CS or related field

Master’s degree (preferred) in IT/Engineering/related field

Tools

SolarWinds

WhatsUp Gold

NetQoS

NetBrain

VMware

Linux

Windows Server & Active Directory

Job description

The Digital Sector at Leidos currently has an opening for a ITP 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 12-15 years of prior relevant experience. Additional education and experience may be considered in lieu of a degree 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: October 7, 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 $116,350.00 - $210,325.00 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.

Leidos Leidos is an industry and technology leader serving government and 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. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.

Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.