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Principal Enterprise Security Architect

Job Req ID:  48105
Posting Date:  24 Jun 2025
Function:  Cyber Security
Unit:  Networks
Location: 

New Bailey, Manchester, United Kingdom

Salary:  Competitive with Great Benefits

Why this job matters

Ensuring the inherent security in BT’s architecture and services expected by our customers, and constantly appraising the risk BT faces from the wider connected world, this role assures the protection of BT Group’s brands and reputation as the cyber threat evolves. This role is accountable for an area of security architectural strategy and associated evolution roadmaps for security capabilities, ensuring alignment with broader Architecture and leveraging cost optimisation through timely review of market capabilities and adoption of new capabilities in a timely fashion. The role works in collaboration with relevant teams to ensure alignment to the wider Digital/Network architecture and to be the security point of contact in wider architectural initiatives.


This role is hybrid (3 days a week in office) & can be based in one of the following: Birmingham/ Bristol/ London/ Manchester/ Glasgow/ Belfast

What you’ll be doing

  • You will create, own, drive and support architecture for a defined domain or business area. 
  • You will be aligned to an architecture sub-domain. Some of these are business focused, and some are tooling focused. They may also change in response to business need.
  • On behalf of a security domain or business area, you will own the day-to-day relationship with the security architects and on behalf of security architecture the relationship back into the business.
  • You’ll experiment with technology – running trials, proofs of concept and even building minimum viable products to accelerate our journey.
  • You will scout ahead on change in the industry, BT incubation and BT applied research and communicate your architectural assessment and insight.
  • Work closely with the security leads across relevant areas to understand where technology can reduce risk, increase efficiency and improve their effectiveness.
  • You will ensure our security architecture enables instead of conflicts with the wider business strategies.
  • You will ensure alignment between external products that are sold/consumed, and products that are used internally.


Skills Required for the Role

  • You will be accountable for the below, within your specific scope, and responsible for contributing to those of others:
  • Contribute, author, or maintain (as appropriate) and communicate a set of architecture artefacts:
    • Standards & policies
    • Guard rails
    • Patterns and anti-patterns
    • Guidance on choice (decision tree, cloud assessment, etc.)
    • Principles
    • Defining and maintain a set of architecture building blocks jointly with security architects
    • Key solution building blocks, jointly with solution architects and/or security architects
    • A joined-up cyber strategy and associated - frequently and regularly updated - strategic plan (roadmap)
    • Aligning all your deliverables with the other enterprise & security architects
  • You will be an evangelist for cyber security and maintain relationships with all relevant key BT internal teams and external vendors & suppliers
  • Community and communication are important – you will be an active contributor and leader of both.
  • You will work with the other Enterprise Architects to ensure their architectures and plans equally consider security principles, e.g., zero trust, secure by default, etc.

Experience Required for the Role

  • Experience as an Enterprise Architect for 5+ years, in a large organisation. You will have lead material business change through enterprise architecture
  • Recognised as an experienced technical expert within a technology area
  • Experience of Enterprise Architecture Frameworks, and their relevance to the practice of Enterprise Architecture. TOGAF certification not essential
  • Qualified or equivalent demonstrable experience of CISSP, CISSM or similar
  • Experience with security architecture
  • Experience in running light-touch architecture governance processes in large organizations
  • A broad range of business, data, systems, and technology architecture experience
  • Strong experience of cyber security, ideally with operational / delivery / forensics / etc. experience
  • Experience of developing long term roadmaps linked to business outcomes
  • Strong commercial skills include supplier negotiation, cost optimisation. 
  • Experience of producing business cases, gaining approval from senior stakeholders, and ensuring delivery of business benefits

Benefits

  • On target 15% on target bonus​
  • Health Care
  • Car Allowance
  • BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%​
  • From January 2025, equal family leave:  receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up.​
  • Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more.​
  • 25 days annual leave (not including bank holidays), increasing with service​
  • 24/7 private virtual GP appointments for UK colleagues​
  • 2 weeks carer’s leave ​
  • World-class training and development opportunities​
  • Option to join BT Shares Saving schemes.

About us

BT Group was the world’s first telco and our heritage in the sector is unrivalled.  As home to several of the UK’s most recognised and cherished brands – BT, EE, Openreach and Plusnet, we have always played a critical role in creating the future, and we have reached an inflection point in the transformation of our business. 
 
Over the next two years, we will complete the UK’s largest and most successful digital infrastructure project – connecting more than 25 million premises to full fibre broadband.  Together with our heavy investment in 5G, we play a central role in revolutionising how people connect with each other. 
 
While we are through the most capital-intensive phase of our fibre investment, meaning we can reward our shareholders for their commitment and patience, we are absolutely focused on how we organise ourselves in the best way to serve our customers in the years to come.  This includes radical simplification of systems, structures, and processes on a huge scale. Together with our application of AI and technology, we are on a path to creating the UK’s best telco, reimagining the customer experience and relationship with one of this country’s biggest infrastructure companies.  
 
Change on the scale we will all experience in the coming years is unprecedented.  BT Group is committed to being the driving force behind improving connectivity for millions and there has never been a more exciting time to join a company and leadership team with the skills, experience, creativity, and passion to take this company into a new era.

A FEW POINTS TO NOTE:

Although these roles are listed as full-time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.

DON'T MEET EVERY SINGLE REQUIREMENT?

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.

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