Senior DDI Engineer (DNS, DHCP & IPAM)

Senior DDI Engineer (DNS, DHCP & IPAM) in Sheffield (S1) | Essential Consulting Find a job Post a job Sign up Never miss an opportunity. 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About the Role Essential Consulting are looking for an experienced DDI Subject Matter Expert to join a leading global bank, taking ownership of the design, implementation and optimisation of enterprise DNS, DHCP and IP Address Management (IPAM) infrastructure. This is a hands-on technical role , requiring deep DDI engineering expertise rather than a purely strategic or architectural background. You'll work across multiple DDI platforms, driving infrastructure modernisation, automation, observability and resilience while ensuring services remain secure, scalable and reliable. A key part of the role will be leading a comprehensive DDI resilience assessment , identifying risks and opportunities for improvement and providing clear technical recommendations to strengthen the bank's infrastructure. Key Responsibilities Lead an end-to-end DDI resilience assessment , identifying vulnerabilities, recovery gaps and opportunities to improve availability and operational resilience. Take ownership of DDI initiatives from design and implementation through to integration, troubleshooting and ongoing optimisation. Design, deploy and maintain enterprise DNS architectures, including Anycast DNS solutions. Work hands-on across DDI platforms including Infoblox, Cygna Labs/QIP and EfficientIP , integrating technologies across complex environments. Develop and enhance DNS monitoring and observability capabilities, including DNS Tap, logging, telemetry pipelines and dashboards . Strengthen governance, compliance, security and control frameworks across DNS and IP management services. Integrate DDI infrastructure with Active Directory and secure authentication mechanisms. Collaborate with network engineering teams on BGP, OSPF, routing and switching to support DNS resilience. Support DDI automation through APIs, infrastructure-as-code and orchestration technologies. Troubleshoot complex DNS, DHCP and IPAM issues across distributed enterprise environments. Act as the technical SME and escalation point for DDI infrastructure, providing guidance to engineering teams and senior stakeholders. What We're Looking For 15+ years' experience in DDI infrastructure , including large-scale enterprise deployments, transformation and resilience initiatives. Strong hands-on engineering expertise across DNS, DHCP and IPAM , with experience using platforms such as Infoblox, Cygna Labs/QIP, EfficientIP or similar . Deep understanding of enterprise DNS architecture, design, implementation and operations. Proven experience designing or deploying Anycast DNS within complex enterprise environments. Strong understanding of networking protocols, particularly BGP and OSPF . Experience with DNS monitoring and observability technologies, including DNS Tap, logging and telemetry . Knowledge of DDI integration with Active Directory and secure authentication . Understanding of governance, compliance and control frameworks within enterprise network services. Excellent troubleshooting and problem-solving skills across complex, distributed infrastructure. Strong communication skills, with the ability to work across technical teams and provide clear recommendations to stakeholders. Desirable Experience DDI automation and scripting using Python, APIs, Ansible or Terraform . Cloud DNS technologies, including AWS Route 53 and Azure DNS . Experience supporting highly available, globally distributed DNS environments. DNS security technologies and practices, including DNSSEC and DDoS mitigation . This opportunity would suit a Senior DDI Engineer, DDI Technical Lead or hands-on DDI Architect who enjoys taking technical ownership, solving complex infrastructure challenges and delivering improvements across large-scale enterprise environments. If you have extensive hands-on DDI experience and a strong background in infrastructure resilience, we'd be keen to hear from you. 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