Job Req ID: 63284
Posting Date: 07/10/2026
Function: Cyber Security
Location: Birmingham, Bristol, Glasgow, London, Manchester
Salary: Competitive Salary + Benefits (Internal grade D)
PLEASE NOTE BEFORE APPLYING: Role requires SC (security clearance) Minimum 5 years UK working history
Through the development and governance of Low Level Service Designs (LLSDs), operational processes and customer-facing service documentation, the role ensures contractual, business and technical requirements are translated into robust, scalable and supportable operational services.
Working closely with project, operational, architectural and customer stakeholders, the Service Design Specialist drives the development of effective service solutions, provides service design leadership throughout mobilisation and transition activities, and ensures compliance with BT Security governance standards, policies and best practices.
Lead the creation, governance and continuous improvement of Low Level Service Designs (LLSDs), ensuring alignment with contractual obligations, customer requirements, operational capabilities and BT Security standards.
Provide service design leadership across technical, operational and customer stakeholder groups, driving collaboration, challenging assumptions where appropriate, and ensuring service design artefacts are accurate, complete and aligned to business objectives.
Join us at a pivotal moment for BT Business. We are executing a multi-year transformation to restore growth, modernise at scale and unlock new markets beyond connectivity. Our ambition is clear – return to sustainable revenue and EBITDA growth, strengthen our market position, and deliver meaningful shareholder value through disciplined execution and bold reinvention.
We are fundamentally reshaping the business – simplifying our portfolio, digitising our customer experience and building market-leading capability across cyber, AI and managed services, all powered by the UK’s leading fixed and mobile networks. This is a shift from a legacy connectivity provider to a modern, solutions-led, AI-first business that can truly differentiate in a competitive and fast-moving market.
With execution momentum building and a clear path to growth, the opportunity now is to scale what works, accelerate performance and fully realise our potential. This is about delivering against ambitious financial outcomes while transforming how we operate – creating a business that is simpler, faster, more innovative and easier to do business with.
If you want to be part of the team shaping the turnaround of a multi-billion-pound business – and building a stronger, more competitive BT for the future – this is your moment.

We’re one of the world’s leading communications services companies. At BT Group, the solutions we sell are integral to modern life. Our purpose is as simple as it is ambitious: we connect for good.
There are no limits to what people can do when they connect. And as technology changes our world, connections are becoming even more important to everyday life.
Today, that’s truer than ever. The connections we make are helping solve the world’s biggest challenges such as the global pandemic, climate change and cyber security. Through the power of technology, we’re supporting customers to live, work and play together better.