Network Engineer

Leidos Inc; Chantilly (VA); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos in Chantilly, VA is seeking an experienced Network Engineer with active TS/SCI and Poly. You will install, configure, and troubleshoot network devices, monitor LAN/WAN, and work with senior engineers to optimize performance and security across CONUS/OCONUS teams.

Ideal candidates have CCNA, strong OSI/TCP/IP knowledge, and hands-on Cisco scripting experience. A BS with 8+ years (or MS with 6+) is required; 50% travel to CONUS/OCONUS locations may be needed.

Qualifications

• Bachelor's degree with 8+ years of experience or Master's with 6+ years; Doctorate may reduce experience.
• Active TS/SCI with Poly is required to be considered.
• CCNA certification and solid OSI/TCP-IP understanding are required.
• Hands-on experience with Cisco networking, routing, switching, and scripting.

Responsibilities

• Install, configure, and troubleshoot network appliances (routers, switches, firewalls).
• Monitor LAN/WAN and provide regular reporting.
• Collaborate with Chief Engineer to optimize network performance and security.

Skills

Active TS/SCI With Poly

CCNA

OSI/TCP-IP

Network monitoring

Cisco appliances

Routing & switching

Scripting Cisco devices

Communication skills

Education

Bachelor's degree

Master's degree

Doctorate in related subject

Tools

SolarWinds Performance Monitor

Configuration Manager

AWS

VoIP/PBX

Asterisk

Cisco ASA/Firepower

Juniper SRX

Job description

Description

Leidos delivers solutions through the work of a diverse, dedicated team focused on our customers' success. We're looking for people who want to do work that matters, on a team that sticks around because the problems are worth solving. Our team is seeking 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.

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 - 50% travel to OCONUS location.
• Maintain network lab in Chantilly, VA

REQUIRED Skills, Experience, and Education

• Bachelor's degree and at least 8 years minimum experience depending on education, training, skills and experience OR Masters and at least 6 years of 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.

Pay Range

$107,900.00 - $195,050.00

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. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

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.