Network Engineer

Leidos LLC; Alabama; On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking a Network Engineer to provide day-to-day network administration essential to mission success. The role ensures network requirements are communicated, prioritized, and implemented while maintaining compliance with cybersecurity standards.

The candidate will monitor and troubleshoot LAN/WAN environments, configure VLANs, DNS/DHCP, routing, firewalls, VPN tunnels, and manage network-connected appliances within regulated settings.

Qualifications

• Bachelor's degree or higher in a related field.
• Active or preferred Cisco/Network+ certification.
• Experience administering enterprise networks (LAN/WAN).
• Experience configuring and managing network-connected appliances in regulated environments.

Responsibilities

• Provide dedicated network administration for mission network infrastructure and prioritize requirements.
• Monitor, maintain, and troubleshoot LAN/WAN environments including VLANs, DNS, DHCP, routing and firewalls.
• Install, configure, and maintain switches, routers, firewalls and related devices.
• Manage network-connected appliances (PDUs, NTP, printers, clocks) with cybersecurity compliance.
• Maintain documentation in CMDB and IP address management records.
• Coordinate requirements with cybersecurity, systems, and operations teams and provide weekly status updates.

Skills

LAN/WAN administration

VLANs

Routing

Firewalls

VPN tunnels

DNS/DHCP

Certificate lifecycle management

CMDB documentation

Cybersecurity compliance

Education

Bachelor's degree in relevant field

Associate's degree with 8+ years of experience

Job description

The AEGIS program at Leidos is seeking a dedicated Network Engineer to provide day-to-day network administration that is critical to mission success. This role ensures mission network requirements are communicated, prioritized, and implemented, and that all network-connected devices are integrated and maintained in compliance with Agency and Center cybersecurity requirements.

Key Responsibilities:

• Provide dedicated network administration for mission network infrastructure, ensuring mission requirements are effectively communicated, prioritized, and implemented
• Monitor, maintain, and troubleshoot LAN/WAN environments, including configuration and management of VLANs, subnets, DNS, DHCP, routing, firewalls, and hardware-based VPN tunnels in support of mission operations.
• Install, configure, and maintain network hardware (switches, routers, firewalls, and related infrastructure devices).
• Configure and manage network-connected appliances (e.g., Smart PDUs, NTP servers, printers, display clocks), ensuring proper integration and compliance with cybersecurity standards—digital certificate management and Data in Transit (DIT) encryption included.
• Monitor system utilization, identify potential issues, and implement solutions to optimize network reliability and throughput.
• Troubleshoot and resolve day-to-day IT system issues in a timely manner to minimize impact to mission operations.
• Maintain accurate documentation (network diagrams, IP address management records, device configurations, appliance inventories, certificate expiration tracking) in the centralized Configuration Management Database (CMDB).
• Coordinate network requirements, issues, and concerns with IT disciplines across the Center and Agency to ensure consistent, interoperable services.
• Provide weekly status updates on assigned tasks, including outstanding requests and appliance compliance status.

Basic Qualifications:

• Bachelor's degree and 5+ years of experience in Network Engineering OR a Associate's degree and 8+ years of experience in Network Engineering.
• Industry-level knowledge and skills equivalent to Cisco Certified Network Associate (CCNA) or CompTIA Network+ (active certification strongly preferred).
• Experience administering enterprise networks (LAN/WAN), including VLANs, routing, firewalls, VPN tunnels, DNS/DHCP.
• Experience integrating and managing network-connected appliances (PDUs, NTP, printers, clocks) in regulated environments.
• Demonstrated proficiency with certificate lifecycle management (issuance, renewal, revocation) and Data in Transit (DIT) encryption standards.
• Strong troubleshooting skills with a track record of timely issue resolution in mission-critical settings.
• Proficiency in network documentation, IP address management (IPAM), and maintaining artifacts in a CMDB.
• Excellent communication skills and cross-functional collaboration with cybersecurity, systems, and operations teams.

Preferred Qualifications:

• Experience supporting NASA, federal, or defense mission networks.
• Familiarity with Armstrong/Agency IT configuration management processes (CCRs/DRs/STRs) and presenting to technical control boards.
• Experience with enterprise monitoring and logging tools for capacity and performance management.
• Knowledge of Agency/Center cybersecurity baselines, policies, and compliance reporting.

Work Environment & Schedule:

This is an on-site only position. Primary work location at Edwards, CA (AFRC); occasional after-hours or on-call support may be required during mission activities. Limited travel may be needed for coordination across Centers or vendor engagements.

Clearance Requirements:

U.S. Citizenship is required. Ability to obtain and maintain a Secret clearance, at minimum.

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:

Pay Range $73,450.00 - $132,775.00 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.

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 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.

Original Posting: October 9, 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.

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.