Network Engineer

Leidos; Pearl (MS); On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos seeks a Network Engineer to design, optimize, secure, and sustain large scale DoD networks for ONI at Pearl Harbor, Hawaii. You will support LAN/WAN, routing, switching, and cryptographic devices to enable critical government communications.

The role requires TS/SCI clearance, CCNP, Security+ and DoD network experience, with strong OSI knowledge and Cisco ecosystem expertise. Travel to multiple sites may be required.

Qualifications

• Bachelor’s degree in Engineering or technical discipline with 7+ years experience, or Master’s with 5+ years.
• Active TS/SCI security clearance.
• Active CompTIA Security+ certification.
• Active CCNP certification.
• Engineering experience supporting DoD communication systems and networks.
• OSI model knowledge L1-L4 essential for HGCC N31 and customers.
• Expertise with Cisco enterprise networking and large scale routing.
• Experience with Palo Alto and Azure Firewalls.
• Experience with SolarWinds, Cisco ISE with TACACS+, and GEMOne.

Responsibilities

• Oversee LAN, WAN, firewall, and NMS activities per Government guidance.
• Manage advanced Cisco routing and switching for enterprise networks (>700 devices).
• Configure cryptographic devices and OSPF routing.
• Review IAVAs/IAVBs and implement remediation.
• Support local network infrastructure and circuits from T1 through OC 192.
• Develop SOPs and propose security improvements to the Government.
• Provide onsite engineering support for operational mission environments.
• Provide technical assistance to remote HGCC divisions; travel may be required.

Skills

Cisco routing & switching

LAN/WAN design

Network security fundamentals

OSi model L1-L4 knowledge

DoD network engineering

Technical documentation

Education

Bachelor's degree in Engineering/technical

Master's degree in Engineering/technical

Tools

SolarWinds

Cisco ISE (TACACS+)

GEMOne

Palo Alto Firewalls

Azure Firewalls

Job description

Description Network Engineer Location: Pearl Harbor, Hawaii

Security Clearance: Active TS/SCI Required

Leidos is seeking a Network Engineer to support forward deployed mission operations at the Office of Naval Intelligence (ONI) in Pearl Harbor, Hawaii. In this role, you will design, optimize, secure, and sustain large scale enterprise networks supporting critical Department of Defense communications. The ideal candidate has extensive experience with complex routing and switching, DoD communication systems, and enterprise network engineering in mission critical environments.

Primary Responsibilities

• Oversee Local Area Network (LAN), Wide Area Network (WAN), firewall, and Network Management System (NMS) activities in accordance with Government guidance.
• Manage advanced Cisco routing and switching for enterprise networks consisting of more than 700 Cisco routers and switches.
• Configure cryptographic devices and advanced routing protocols, including Open Shortest Path First (OSPF).
• Review Information Assurance Vulnerability Alerts (IAVAs) and Information Assurance Vulnerability Bulletins (IAVBs), and implement required remediation.
• Support local network infrastructure and telecommunications circuits ranging from T1 through OC 192.
• Develop Standard Operating Procedures (SOPs) and recommend improvements to the Government that enhance the security environment.
• Provide onsite engineering support for operational mission environments.
• Provide technical assistance to remote Hopper Global Communications Center (HGCC) divisions. Travel may be required to Guam, Japan, Bahrain, Italy, Spain, Australia, South Korea, and Singapore.

Required Qualifications

• Bachelor’s degree in Engineering, an engineering discipline, or a technical discipline with 7+ years of experience, or a Master’s degree with 5+ years of experience. Additional relevant experience may be substituted for a degree.
• Active TS/SCI security clearance (in DISS).
• Active CompTIA Security+ certification.
• Active Cisco Certified Network Professional (CCNP) certification.
• Engineering experience supporting DoD communication systems and networks.
• Expertise in the Open Systems Interconnection (OSI) model, specifically Layers 1 through 4. Knowledge of systems and applications operating at the higher OSI layers is essential to the continued success of HGCC N31 and its supported customers.
• Expertise with Cisco enterprise networking, cryptographic devices, and large scale routing optimization.
• Experience with Palo Alto Firewalls and Azure Firewalls.
• Experience with SolarWinds, Cisco Identity Services Engine (ISE) with TACACS+, and GEMOne.

Original Posting

July 26, 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 $73,450.00 – $132,775.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About 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 $16.7 billion for the fiscal year ended January 3, 2025. 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.

• Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

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.

Commitment to Non-Discrimination

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.