Network Engineer

Network Engineer – Infoblox DDI

Location: London, UK (Hybrid/On-site)

Job Overview

We are looking for an experienced Network Engineer with strong hands-on expertise in Infoblox DDI (DNS, DHCP & IP Address Management) to join a growing enterprise infrastructure team. The successful candidate will be responsible for the design, implementation, administration, and support of Infoblox DDI solutions while ensuring the availability, performance, and security of critical network services. This is an excellent opportunity for a networking professional with strong troubleshooting skills and experience supporting large-scale enterprise environments.

Key Responsibilities

The successful candidate will design, implement, and support Infoblox DDI solutions while administering and maintaining enterprise DNS, DHCP, and IP Address Management (IPAM) services. Responsibilities include performing lifecycle management, upgrades, patching, and maintenance of the Infoblox Grid infrastructure, configuring and managing DNS zones, DHCP scopes, IP address allocation, and related network services. The role also involves troubleshooting and resolving complex DNS, DHCP, IPAM, and networking issues, monitoring network infrastructure to ensure high availability and optimal performance, supporting vulnerability remediation, participating in incident, problem, and change management activities, producing technical documentation, SOPs, runbooks, and network diagrams, collaborating with cross-functional teams, and participating in an on-call support rota when required.

Required Skills & Experience

Applicants should have 6–8+ years of experience in Network Engineering with strong hands-on expertise in Infoblox DDI. Experience managing enterprise DNS, DHCP, and IPAM environments is essential, along with proven knowledge of Infoblox Grid administration, upgrades, patching, and lifecycle management. A strong understanding of TCP/IP networking, routing, switching, VLANs, DNS, DHCP, HTTP/HTTPS, SSL/TLS, FTP, SNMP, and related networking protocols is required. Candidates should possess excellent troubleshooting, analytical, and problem-solving skills, have experience using diagnostic tools such as Wireshark, cURL, Postman, or similar, understand vulnerability management and network security best practices, and be able to work effectively both independently and within cross-functional teams.

Preferred Skills

Experience with F5 Load Balancers (LTM, GTM, ASM, APM), Citrix NetScaler, and cloud networking technologies such as AWS, Azure, or GCP would be advantageous. Knowledge of automation and scripting using Python, PowerShell, or Ansible, together with experience supporting enterprise production environments requiring high availability, would also be beneficial.