TS/SCI Network Architect — F5 & Infoblox Expert

Leidos; Albuquerque (NM); On-site; USD 116,350 - 210,325; Full time

Job summary

Leidos is seeking a Network Architect SME to lead design, deployment, and optimization of our enterprise application delivery and DDI infrastructure in Fort Belvoir, VA or Albuquerque, NM. You will leverage F5 and Infoblox to deliver scalable, secure, highly available networks supporting critical mission requirements.

The role requires hands-on expertise with F5 BIG-IP (LTM/GTM) and Infoblox, strong leadership, DoD experience, and a clear, concise ability to communicate designs to technical

Qualifications

• Active TS/SCI clearance required at time of hire.
• Bachelor's degree in CS/IT or related field with 12-15 yrs experience, or Master's with 10-13 yrs.
• Active IAT Level II certification (e.g., Security+ CE, CySA+, GSEC, SSCP).
• Cisco CCNA certification; CCNP/CCIE preferred.
• United States citizenship required.
• 8+ years in network engineering/architecture focused on ADN.
• Deep F5 BIG-IP expertise: LTM/GTM configurations.
• Extensive Infoblox DDI experience (Grid, IPAM).
• RSA MFA experience.
• Mastery of OSI layers, TCP/IP, BGP/OSPF; SSL offload.
• Leadership: lead technical WG; DoW/DoD NOC/SOC experience.
• Strong communication to leadership boards.

Responsibilities

• Design, deploy, and manage advanced application delivery for mission-critical apps.
• Architect and maintain F5 BIG-IP LTM/GTM for intelligent load balancing.
• Lead Infoblox DDI deployment and IPAM integration.
• Collaborate with developers, cybersecurity, and systems engineers for resilient networks.
• Troubleshoot, analyze traffic, and tune performance for complex delivery workflows.
• Create architectural docs, SOPs, and blueprints.
• Ensure DoW STIG/IL5/IL6/IL7 compliance and traceability.

Skills

F5 BIG-IP

LTM

GTM

Infoblox DDI

DNS/DHCP/IPAM

Network architecture

TS/SCI clearance

TCP/IP OSI

BGP OSPF

DoD/NOC/SOC

Presentation to leadership

Education

Bachelor's degree in Computer Science or related field

Master's degree (optional)

Active IAT Level II certification

Cisco CCNA (CCNP/CCIE preferred)

Tools

Ansible

Python

Terraform

F5 AS3

Job description

Leidos is seeking a Network Architect SME to lead design, deployment, and optimization of our enterprise application delivery and DDI infrastructure in Fort Belvoir, VA or Albuquerque, NM. You will leverage F5 and Infoblox to deliver scalable, secure, highly available networks supporting critical mission requirements.

The role requires hands-on expertise with F5 BIG-IP (LTM/GTM) and Infoblox, strong leadership, DoD experience, and a clear, concise ability to communicate designs to technical