Leidos
Overview
Leidos is seeking a
Sr. Network Security Engineer
to join our AGUN Migration team. This position will be 100% remote with some associated travel. The AGUN program is a highly demanding mission and requires expert technical and professional management to support the Army’s global wide area network and security infrastructure. This role is remote and will be supporting a large and complex network migration and operations for the US Army. Clearance Requirement
Must currently possess and be able to maintain an active DoD SECRET security clearance. (US Citizenship required) Primary Responsibilities
Operate and maintain secure network solutions operated as a centralized enterprise capability for the United States Army Partner with key stakeholders and technical experts to perform legacy environment discovery, assessing current capabilities, configurations, and requirements to provide network firewall migration support for the Army global network Analyze and understand complex firewall security zones and policies with the ability to transform policies between multiple vendor firewall devices while meeting mission requirements Support secure access solutions leveraging zero trust network access (ZTNA) including support for creation of new access policies and maintenance of existing policies Integrate capacity planning and scaling of network and security stack environments into the overall operational support processes and staff Collect, investigate, and identify network resource management strategies and techniques to meet capacity and performance requirements Work with information assurance teams and the AGUN cybersecurity service provider (CSSP) to ensure compliance to DoD standards to assist with maintenance of the network security posture Document designs, diagrams, drawings, and technical narratives using wiki technologies and common diagram and drawing tools Basic Qualifications
Minimum of a Bachelor’s degree with 12+ years' experience or Master’s degree with 10+ years of experience (additional years of directly applicable experience may be accepted in lieu of a degree) Active DoD IAT Level II (Security+) certification or equivalent prior to start Expert understanding of networking and virtualization of firewalls including VSYS in a multi-tenant environment Experience with networking concepts such as LAN, WAN, BGP, TCP/UDP, IPSec, VPN, Routing (L2/L3), and firewalls in a virtualized environment Experience with enterprise network management tools such as Palo Alto Panorama, Cisco Prime, Cisco DNA, or Junos Space Experience in system hardening of network infrastructure including DoD STIG implementation Experience with at least two of the following vendor network technologies: Cisco, Juniper, Palo Alto, Dell, RAVPN, Global Protect, or AppGate Experience with protocols: SFTP, SSH, SCP, MPLS, SNMP, NTP Ability to work as part of a team to troubleshoot and resolve complex network security issues Excellent written and verbal communication skills Willingness to work non-standard shifts to accomplish network migration objectives and goals Ability to interface with customers Willingness to travel up to 10% of the time Preferred Qualifications
Army/DISA migration experience Hands-on experience with Palo Alto Next Generation Firewalls (NGFW) Knowledge of NetSecOps technologies including git, Gitlab CI/CD, Ansible, Terraform, Puppet, and network element managers Working knowledge of Python Demonstrated expertise in design and improvement of complex geographically dispersed enterprise networks Expert knowledge of US Army security requirements for network infrastructure Additional Information
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
Posting Date: September 18, 2025 Pay Range
Pay Range $112,450.00 - $203,275.00 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 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. #Remote
#J-18808-Ljbffr
Leidos is seeking a
Sr. Network Security Engineer
to join our AGUN Migration team. This position will be 100% remote with some associated travel. The AGUN program is a highly demanding mission and requires expert technical and professional management to support the Army’s global wide area network and security infrastructure. This role is remote and will be supporting a large and complex network migration and operations for the US Army. Clearance Requirement
Must currently possess and be able to maintain an active DoD SECRET security clearance. (US Citizenship required) Primary Responsibilities
Operate and maintain secure network solutions operated as a centralized enterprise capability for the United States Army Partner with key stakeholders and technical experts to perform legacy environment discovery, assessing current capabilities, configurations, and requirements to provide network firewall migration support for the Army global network Analyze and understand complex firewall security zones and policies with the ability to transform policies between multiple vendor firewall devices while meeting mission requirements Support secure access solutions leveraging zero trust network access (ZTNA) including support for creation of new access policies and maintenance of existing policies Integrate capacity planning and scaling of network and security stack environments into the overall operational support processes and staff Collect, investigate, and identify network resource management strategies and techniques to meet capacity and performance requirements Work with information assurance teams and the AGUN cybersecurity service provider (CSSP) to ensure compliance to DoD standards to assist with maintenance of the network security posture Document designs, diagrams, drawings, and technical narratives using wiki technologies and common diagram and drawing tools Basic Qualifications
Minimum of a Bachelor’s degree with 12+ years' experience or Master’s degree with 10+ years of experience (additional years of directly applicable experience may be accepted in lieu of a degree) Active DoD IAT Level II (Security+) certification or equivalent prior to start Expert understanding of networking and virtualization of firewalls including VSYS in a multi-tenant environment Experience with networking concepts such as LAN, WAN, BGP, TCP/UDP, IPSec, VPN, Routing (L2/L3), and firewalls in a virtualized environment Experience with enterprise network management tools such as Palo Alto Panorama, Cisco Prime, Cisco DNA, or Junos Space Experience in system hardening of network infrastructure including DoD STIG implementation Experience with at least two of the following vendor network technologies: Cisco, Juniper, Palo Alto, Dell, RAVPN, Global Protect, or AppGate Experience with protocols: SFTP, SSH, SCP, MPLS, SNMP, NTP Ability to work as part of a team to troubleshoot and resolve complex network security issues Excellent written and verbal communication skills Willingness to work non-standard shifts to accomplish network migration objectives and goals Ability to interface with customers Willingness to travel up to 10% of the time Preferred Qualifications
Army/DISA migration experience Hands-on experience with Palo Alto Next Generation Firewalls (NGFW) Knowledge of NetSecOps technologies including git, Gitlab CI/CD, Ansible, Terraform, Puppet, and network element managers Working knowledge of Python Demonstrated expertise in design and improvement of complex geographically dispersed enterprise networks Expert knowledge of US Army security requirements for network infrastructure Additional Information
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
Posting Date: September 18, 2025 Pay Range
Pay Range $112,450.00 - $203,275.00 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 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. #Remote
#J-18808-Ljbffr