# Senior Network Engineer

**Company**: Leidos
**Location**: Fort Belvoir, VA or Albuquerque, New Mexico
**Experience**: senior
**Job type**: full-time
**Salary**: $92,300.00 - $166,850.00
**Category**: Engineering
**Industry**: Technology

**Apply**: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Fort-Belvoir-VA/Senior-Network-Engineer_R-00188317?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_8e62a344-870

## Description

Leidos is seeking a Senior Network Engineer to support the design, implementation, modernization, and sustainment of enterprise network infrastructure within a fast-paced Department of Defense (DoD) environment.

The successful candidate will provide engineering expertise for mission-critical Local Area Network (LAN), Wide Area Network (WAN), and secure network infrastructure supporting classified and enterprise operations.

**Responsibilities:**

- Design, implement, configure, and maintain enterprise LAN and WAN infrastructure.

- Engineer and support Cisco routing and switching environments for mission-critical networks.

- Configure, troubleshoot, and optimize enterprise routing and switching technologies, including OSPF, BGP, VLANs, Spanning Tree Protocol (STP), and HSRP/VRRP.

- Support WAN connectivity utilizing MPLS, VPN, and Internet-based transport technologies.

- Configure, administer, and maintain Palo Alto Networks next-generation firewalls.

- Design, implement, and support secure Palo Alto GlobalProtect remote access and site-to-site VPN solutions.

- Monitor network health, analyze performance, identify bottlenecks, and implement corrective actions.

- Perform advanced Layer 1–7 network troubleshooting using industry-standard diagnostic tools.

- Develop and maintain engineering documentation, implementation plans, network diagrams, and standard operating procedures.

- Participate in technology refreshes, network modernization efforts, and infrastructure upgrades.

- Collaborate with cybersecurity personnel to ensure compliance with DoD cybersecurity policies, RMF requirements, and applicable STIGs.

- Support scheduled maintenance activities, incident response, and operational troubleshooting in a high-availability environment.

**Requirements:**

- Bachelor’s degree in computer science, information technology, engineering, or a related discipline with 8+ years of relevant experience.

- Active DoD 8570/8140 IAT Level II certification (Security+, CySA+, or equivalent).

- Active Cisco Certified Network Associate (CCNA) certification.

- Active TS/SCI clearance at time of hire.

- Extensive experience designing, implementing, and supporting enterprise Cisco network infrastructure.

- Strong working knowledge of TCP/IP, IPv4/IPv6, DDI (DNS / DHCP / IPAM), NAT, VLANs, Copper and fiber optic cabling standards, Quality of Service (QoS), OSPF, MPLS, Secure Access Service Edge (SASE) technologies.

- Hands-on experience configuring and administering Palo Alto Networks next-generation firewalls, including security policies, NAT, threat prevention, and GlobalProtect.

- Experience implementing and supporting secure remote-access and site-to-site VPN technologies.

- Demonstrated experience troubleshooting enterprise LAN and WAN environments.

- Experience supporting networking solutions within a fast-paced Department of Defense enterprise.

- Excellent written, verbal, and interpersonal communication skills.

- Ability to manage multiple priorities while working independently and as part of a technical team.

**Preferred Qualifications:**

- Cisco Certified Network Professional (CCNP) certification.

- Experience with Border Gateway Protocol (BGP) and advanced Software-Defined WAN (SD-WAN) architectures.

- Experience deploying and supporting Versa Networks or similar SD-WAN solutions.

- Experience with network automation using Python, Ansible, and Infrastructure-as-Code (IAC) technologies.

- Familiarity with Network Access Control and Comply-to-Connect technologies such as Cisco Identity Services Engine (ISE) and IEEE 802.1X authentication.

- Experience with enterprise network monitoring platforms such as SolarWinds or PRTG.

- Experience supporting hybrid cloud networking in Microsoft Azure and/or AWS environments.

- Knowledge of DoD Risk Management Framework (RMF), Security Technical Implementation Guides (STIGs), and Zero Trust networking principles including SD-WAN, micro- and macro-segmentation, and Zero Trust Network Access (ZTNA).

- Familiarity with break-and-inspect, reverse-web-proxy, and other application-based firewall features.

- Experience reviewing packet capture data for troubleshooting and packet analysis.

- Experience supporting on-prem virtualization platforms such as vSphere.

**Salary:** $92,300.00 - $166,850.00

## Skills

### Required
- Cisco networking technologies
- Palo Alto Networks security solutions
- enterprise routing and switching
- TCP/IP
- IPv4/IPv6
- DDI (DNS / DHCP / IPAM)
- NAT
- VLANs
- Copper and fiber optic cabling standards
- Quality of Service (QoS)
- OSPF
- MPLS
- Secure Access Service Edge (SASE) technologies
- Palo Alto Networks next-generation firewalls
- GlobalProtect

### Nice to have
- Cisco Certified Network Professional (CCNP) certification
- Border Gateway Protocol (BGP)
- Software-Defined WAN (SD-WAN) architectures
- Versa Networks or similar SD-WAN solutions
- network automation using Python, Ansible, and Infrastructure-as-Code (IAC) technologies
- Network Access Control and Comply-to-Connect technologies
- enterprise network monitoring platforms
- hybrid cloud networking in Microsoft Azure and/or AWS environments
- DoD Risk Management Framework (RMF)
- Security Technical Implementation Guides (STIGs)
- Zero Trust networking principles

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Source: [Apply at leidos.wd5.myworkdayjobs.com](https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Fort-Belvoir-VA/Senior-Network-Engineer_R-00188317?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)