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Salary
≈ $76k – $147k per year (Estimated)
Location
Hybrid (Milton Keynes, United Kingdom)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 26, 2026. First seen by Alion on Sep 25, 2026.

Overview
Company
Impact
Profile match
CityFibre is a London company founded in 2011 that is building an alternative full fibre network across British towns and cities. It sells wholesale access to internet providers rather than serving consumers directly, competing with Openreach. The company has connected millions of premises in one of the largest infrastructure programmes in Britain.

This hybrid role offers a great balance of home and office working. You’ll join your colleagues in your local office at least 2 days a week.

As the UK’s largest independent full fibre network and wholesale platform of choice, we’re busy setting new standards for what digital infrastructure can and should be.

Our network is greener, more reliable and designed for the future. The products we run over it lead the way on speed, value and service - helping businesses to innovate, communities to thrive, and people to live more connected digital lives.

At CityFibre, you’ll be part of something bigger, helping to build a better-connected Britain, together.

Joining us as an Enterprise Architect

You'll play a pivotal role in solving complex business, customer technology and data challenges, creating innovative digital enterprise solutions and shaping the future technology landscape across CityFibre. You’ll provide architecture expertise throughout the full design lifecycle, developing strategic roadmaps that align technology investments with business goals.

You’ll receive a competitive salary, and a performance related bonus.

This is some of what you can expect to be doing:

  • Define and maintain current and future state architectures, developing strategic roadmaps that support investment and project prioritisation decisions.
  • Establish architecture principles, governance frameworks and data policies while leading architecture reviews and assurance activities across programmes and projects.
  • Create and deliver enterprise architecture strategies that align business objectives with technology capabilities and future data requirements.
  • Lead the design of innovative enterprise, OSS and BSS architectures, ensuring solutions are robust, cost-effective and aligned to business strategy.
  • Support the early shaping of programmes and projects through impact analysis, estimation, business case input and solution design guidance.
  • Work closely with stakeholders across the business and third-party suppliers to identify opportunities, improve processes and deliver architecturally viable solutions.

What you’ll bring to the role

You'll be an experienced Enterprise Architect with a strong background in telecommunications, enterprise architecture and complex systems integration, capable of translating business challenges into innovative technology solutions.

You'll also have:

  • Significant experience working within telecommunications environments, particularly across OSS/BSS platforms and complex system integration projects.
  • Experience with service orchestration, AWS Cloud and hybrid infrastructure architectures.
  • Strong knowledge of enterprise architecture methodologies and frameworks such as TM Forum, TOGAF, ITIL, BPMN and UML.
  • Experience defining and communicating complex architectures to both technical and non-technical stakeholders using structured architectural approaches.
  • Hands-on experience with architecture modelling tools and cloud-based solutions, ideally within AWS environments.
  • A technical background including data modelling, process management and software development using technologies such as Java, Python, JavaScript or PHP.

Life at CityFibre

Everyone deserves to feel heard, valued and truly included. Working alongside our Employee Communities, we’re committed to creating a workplace where people feel a genuine sense of belonging and pride in what they do. That’s why we’re proud to be a Times Top 50 Employer for Gender Equality, endorsed by WORK180, a Disability Confident Leader, a Care Leaver Friendly Employer, and a signatory of the Armed Forces Covenant Gold Award.

We’ll support you to thrive inside and outside of work, with opportunities to grow your career and a flexible benefits package that adapts to your life - including generous annual leave (with an extra day off on your birthday), private medical insurance, health cash plans and family-friendly policies.

Find out more about our culture, communities and benefits on our careers site.

We want to create a sense of belonging for everyone. We celebrate our differences and work to ensure everyone has the best chance to succeed, starting with our recruitment process. No matter your background, family or carer status, ethnicity, sexual orientation, religion, age, disability, gender, or gender identity, we welcome your application. If you need any support or reasonable adjustments throughout the application process, please email us at [email protected]. We want to help!

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