Network DDI Engineer

About the Opportunity

Our client, a leading organisation within the Financial Services sector, is seeking an experienced DDI Network Engineer specialising in Infoblox to join a large-scale enterprise infrastructure project.

This is an initial 6-month contract offering the opportunity to work on business-critical network infrastructure within a complex enterprise environment.

The successful candidate will be responsible for the management, configuration and optimisation of core DDI services, covering DNS, DHCP and IP Address Management (IPAM).

You will play a key role in ensuring the reliability, availability, security and performance of these services, while supporting infrastructure changes, troubleshooting activities, migrations and automation initiatives.

Key Responsibilities

• Manage, configure and maintain enterprise DDI infrastructure, with a particular focus on Infoblox and NIOS.
• Administer and optimise DNS, DHCP and IPAM services.
• Manage DNS zones, records, forwarders, DHCP scopes and IP address allocation.
• Ensure the availability, security and performance of core network services.
• Troubleshoot and resolve complex DNS, DHCP and network infrastructure issues.
• Support DDI migrations, platform upgrades and infrastructure integrations.
• Work alongside wider infrastructure and network teams on enterprise-level projects.
• Identify opportunities to improve automation, operational efficiency and service resilience.

Essential Skills & Experience

• Strong hands-on experience working within enterprise DDI environments.
• Extensive experience with Infoblox and NIOS.
• Excellent knowledge of DNS, DHCP and IPAM administration.
• Experience managing DNS zones, records, forwarders, DHCP scopes and IP address allocation.
• Strong understanding of IP addressing, subnetting, VLANs, routing and switching.
• Proven troubleshooting experience across complex DNS, DHCP and network infrastructure environments.
• Experience supporting DDI migrations, upgrades and integrations.

Desirable Skills & Experience

• Infoblox Grid architecture and Grid Master administration.
• Advanced DNS Protection (ADP) and DNSSEC.
• Infoblox APIs and REST API integrations.
• Automation and scripting experience using Ansible and Python.
• Linux/Unix administration.
• Experience integrating DDI services with cloud platforms such as AWS, Azure or GCP.
• Experience supporting large-scale, multi-site enterprise network environments.