**Description**

Leidos is sourcing for an expert-level Infoblox Subject Matter Expert to support the U.S. Africa Command (AFRICOM) mission. This role serves as the primary technical authority for the Command’s DDI (DNS, DHCP, and IPAM) infrastructure. The focus is on ensuring 100% availability of core network services across a geographically dispersed, highly classified enterprise environment. The candidate will manage the Infoblox Grid, automate IPAM workflows, and secure DNS traffic against advanced threats.

**Key Duties & Responsibilities**

+ Infoblox Grid Management:Design, deploy, and maintain a highly available Infoblox NIOS Grid architecture, including Grid Masters and distributed members.
+ Advanced DNS Engineering:Manage authoritative and recursive DNS services, including DNSSEC, complex traffic steering, and high-performance caching for mission-critical enclaves.
+ DHCP Infrastructure:Architect and manage robust DHCP services with failover ass...