Lead Network Engineer

Leidos; Arlington (VA); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos in Arlington, VA seeks a senior network engineer to serve as a subject matter expert in design, testing, and deployment of enterprise networks, including WAN, LAN, DNS, wireless, and cloud environments.

You will maintain network design integrity, enable secure connectivity to cloud services, and provide high-level technical support to government teams. A TS/SCI clearance and 10+ years of experience are required. Bachelor’s degree preferred.

Qualifications

• Active Top Secret clearance with SCI eligibility.
• Minimum 10 years of experience in network engineering and design.
• Bachelor’s degree in engineering, computer science, or information systems; or 15 years IT architecture/engineering experience.
• Experience installing, configuring, and managing software defined networking, IAM, mobility, imaging, collaboration, cloud hosting, and communication services.
• Experience engineering secure connectivity to cloud services (CSPs, private, hybrid).
• Strong communication skills, verbal and written.

Responsibilities

• Serve as SME in network engineering design, testing, and deployment.
• Engineer, design, test, and implement enterprise network infrastructure and technologies.
• Maintain design and integrity of WAN, LAN, DNS, Wireless, and Cloud environments.
• Provide expert technical assistance to team members and Government on high-level requests.

Skills

Top Secret clearance

SCI eligibility

10 years experience

Excellent communication

Education

Bachelor’s degree in engineering, CS, or IS

15 years IT architecture/engineering alternative

Tools

Software Defined Networking (SDN)

Cloud hosting & CSPs

DNS management

Job description

Description

Serve as the subject matter expert in the areas of network engineering design, testing, and deployment.

Engineer, design, test, and implement an enterprise network infrastructure and technologies

Responsible for maintaining the design and integrity of CISA Wide Area Network (WAN), Local Area Network (LAN), Enterprise Network Tools, Domain Name Servers (DNS), Wireless, and Cloud environments.

Provide expert technical assistance to team members and Government with high-level system and networking requests and solution identification

Primary Responsibilities.

Serve as the subject matter expert in the areas of network engineering design, testing, and deployment.

Engineer, design, test, and implement an enterprise network infrastructure and technologies

Responsible for maintaining the design and integrity of CISA Wide Area Network (WAN), Local Area Network (LAN), Enterprise Network Tools, Domain Name Servers (DNS), Wireless, and Cloud environments.

Provide expert technical assistance to team members and Government with high-level system and networking requests and solution identification

Basic Qualifications.

• Active Top Secret clearance with Sensitive Compartmented Information (SCI) eligibility.
• Minimum of 10 years of experience in network engineering and design.
• Bachelor’s degree in engineering, computer science, or information systems. In lieu of a bachelor’s degree, an additional 10 years' experience in IT architecture and engineering for a total of 15 years of experience.
• Experience installing, configuring, and managing software defined network, identity and access management, mobility, imaging, collaboration capabilities, cloud hosting, and communication services and solutions.
• Experience engineering, designing, testing, and implementing secure and reliable network connectivity to cloud services (e.g., commercial cloud services providers (CSPs), private cloud, and hybrid cloud).
• Strong communication skills with excellent verbal and written skills.

Preferred Qualifications.

• Experience supporting DHS, CISA, or another highly classified Federal environment.
• Experience with DHS Enterprise Architecture policies, standards, and procedures.

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 4, 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 $92,300.00 - $166,850.00 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.

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

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.