DDI Engineer - Contract - Remote

World Wide Technology; Greater London; Remote; GBP 70,000 - 110,000; Full time

Job summary

World Wide Technology (WWT) is a global tech solutions provider offering infrastructure, security, cloud and digital services in the UK. You will design, build and run core network services, engineering DDI platforms and automating them for scalable enterprise use.

Join a team delivering DNS, DHCP and IPAM across multi-site environments, with focus on HA designs, migrations, and integrations into cloud, ITSM, CMDB and AD. Strong automation skills and vendor certifications are desirable.

Qualifications

• Proven hands-on experience designing, building and integrating DDI in a large enterprise.
• Experience with at least one enterprise DDI platform (BlueCat / VitalQIP / Infoblox).
• Strong DNS, DHCP and IPAM knowledge including IPv4/IPv6 and failover concepts.
• Automation experience using Python / PowerShell / Ansible and REST APIs.
• Solid TCP/IP, routing and switching understanding within a network context.

Responsibilities

• Engineer, build and integrate enterprise DDI platforms from design to live service.
• Integrate DDI with cloud, virtualisation, CMDB, ITSM, AD and identity services.
• Design and deploy resilient DNS/DHCP architectures with HA and scope design.
• Run migrations and upgrades with cutover planning and rollback testing.
• Automate DDI tasks and integrations via APIs and pipelines to reduce manual work.
• Create HLDs/LLDs, configuration standards, test plans and runbooks.
• Own delivery of your workstream; coordinate with teams and hand over to operations.
• Troubleshoot DNS, DHCP and IP addressing across multi-site environments.

Skills

DDI integration

Enterprise DDI platforms

DNS, DHCP & IPAM

Automation scripting

TCP/IP basics

Education

CCNP certification

Automation or cloud certs

Red Hat Ansible / AWS / Azure certs

Tools

BlueCat

Cygna VitalQIP

Infoblox

Job description

World Wide Technology (WWT) is a global technology solutions provider, founded in 1990, that helps organisations turn strategy into results. In the UK, we bring that global scale and our Advanced Technology Center expertise to clients across the public and private sectors. We design, build and prove solutions in infrastructure, security, cloud and digital, before they go live. Our people are our biggest asset, and we invest in them. Make a new world happen with us.

Join a team that designs, builds and runs the core network services every application depends on. You will engineer and integrate DDI platforms, then automate them so they scale cleanly across a large enterprise estate.

What you'll do

• Engineer, build and integrate enterprise DDI platforms (DNS, DHCP and IPAM), from design through to live service.
• Integrate DDI with the wider estate: cloud and virtualisation platforms, network and security tooling, CMDBs, ITSM, and identity and directory services such as Active Directory.
• Design and deploy resilient DNS and DHCP architectures, including HA pairs, grid and appliance deployments, views, zones, forwarders, DNSSEC and scope design.
• Run migrations and upgrades between DDI platforms, with cutover planning, testing and rollback.
• Automate repeatable DDI tasks and integrations through APIs, scripts and pipelines, so IP allocation, record management and provisioning no longer rely on manual work.
• Write the artefacts that go with the build: HLDs and LLDs, configuration standards, test plans and runbooks.
• Own delivery of your workstream: raise and present changes, coordinate with network, security and application teams, then validate and hand over to operations.
• Troubleshoot DNS, DHCP and IP Addressing issues across complex, multi-site environments.

What you'll need

• DDI integration and engineering. Proven hands-on experience designing, building and integrating DDI platforms in a large enterprise.
• Hands-on with at least one enterprise DDI platform. BlueCat, Cygna VitalQIP or Infoblox are all preferred.
• Strong DNS, DHCP and IPAM - Authoritative and recursive DNS, split-horizon design, DHCP failover and relay, subnet and address planning, and IPv4 and IPv6.
• Automation skills- Scripting and API-driven automation using Python, PowerShell or Ansible, including REST integration with DDI platforms.
• Network understanding - Solid grounding in TCP/IP, routing and switching, and how DDI services sit within the network.

Nice to have

• Experience with more than one DDI platform, or a platform-to-platform migration.
• Infrastructure-as-code and pipeline experience (Terraform, Git, CI/CD) applied to DDI or network services.
• Cloud DNS and hybrid DNS design (AWS Route 53, Azure DNS) and cloud IPAM integration.
• DNS security experience, including DNSSEC, DNS Firewalling and logging for threat detection.

Certifications

• Vendor certification desirable (BlueCat, Infoblox or equivalent).
• Network certification such as CCNP desirable.
• Automation or cloud certification a plus (for example Red Hat Ansible, AWS or Azure).

Equal opportunities

WWT is an equal opportunity employer. We are committed to an inclusive workplace where everyone is treated fairly and with respect. We welcome applications from all qualified candidates, regardless of age, disability, gender identity or reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex or sexual orientation