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Job Title: Inflobox Design Specialist
Req ID: 59844
Job Function: Architecture Solution and Design
Posting Start Date: 18/06/2026
Posting End Date: 30/06/2026
Division: UK Business
Job Location: GBR Bristol - Assembly, GBR Glasgow - Alexndr Bain Hse, GBR Leeds - 1 Sovereign Street, GBR Sheffield Endeavour, GBR-Birmingham-Three Snowhill, GBR-London-BTHQ One Braham, GBR-Manchester-New Bailey
Advertised Salary: Competitive + Market Leading Benefits
We operate a hybrid model of 3 days in the office and 2 days working from home, please only apply if you are comfortable with this arrangement.
Must hold or be able to achieve SC-level Security Clearance.
About The Role
We are seeking an experienced Infoblox Subject Matter Expert (SME) to provide technical leadership, design authority, and delivery assurance across DDI solutions within large-scale enterprise environments.
What You’ll Be Doing
Support the Enterprise Architect and Act as the technical authority for Infoblox DDI solutions across design, implementation, and support Produce and review high- and low-level designs (HLD/LLD) aligned to customer requirements Lead deployment, migration, and upgrade activities for Infoblox platforms Provide troubleshooting and root cause analysis for complex DDI issues Ensure designs meet security, resilience, and compliance standards Support customer engagement, including workshops and technical governance forums Collaborate with network, security, and cloud teams to integrate DDI into wider architectures Drive Continuous improvements and evolution of the DDI Services.
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Essential Skills / Experience
Strong hands-on experience with Infoblox services (NIOS, Grid, DNS, DHCP, IPAM, Discovery and Reporting Experience of other DDI Solutions / Services such as Microsoft DHCP and DNS. Proven experience designing and delivering enterprise-scale DDI solutions Experienced in Network Design / IP Design / Schemas. Knowledge of networking fundamentals (BGP, routing, switching, firewalls) Experience with DNS security (DNSSEC) Ability to produce clear technical documentation and design artefacts Strong stakeholder engagement and communication skills
Desirable Skills / Experience
Infoblox certification (e.g. CDCA, CDTA, CDNE) Experience of working within secure contracts and regulated Environments. RPP etc.
Our Package
Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life.
You can design the package to suit you and your lifestyle. Your core benefits include:
10% on target annual bonus 25 days Holiday Access to an online private GP 24/7 for you and your immediate family Market-leading paid carers leave with up to 2 weeks off Equalized maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay Discounted EE and BT products, including mobile and broadband Market leading Pension scheme – 5% from you and 10% from us Holiday purchase scheme
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You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.
Ready to connect for good and help shape the future? Apply now.
With over 180 years of heritage, BT Business has brought together our best people and capabilities into a B2B powerhouse serving 1.2 million business customers in the UK
We’re a leader for secure connectivity and collaboration platforms for businesses of all shapes and sizes, from big household names and government departments, right through to sole traders and new start-ups. But it’s not just the technology that matters, it’s what it can do to help them build stronger, smarter, more secure businesses.
We are Customer-First Challengers, who are Committed, Clear and Connected. We value diversity and inclusion and believe in making a positive impact. We connect for good by championing digital inclusion and equipping people, businesses, and communities with digital skills to thrive.
As a member of our team, you will be part of an organisation that celebrates difference, fosters innovation and provides you with opportunities to be your best. With millions of businesses relying on us daily, joining BT means you can be part of a diverse and multi-skilled team that makes a significant impact to society.
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