Change Manager - Operational Readiness

At MBNL, our mission is clear: to deliver maximum value to our shareholders by managing and enhancing the UK’s best mobile network at the lowest possible cost. As the joint venture between EE and Three, two of the UK’s most recognised and innovative mobile operators, we sit at the heart of telecommunications excellence.

MBNL is at the forefront of transforming the UK’s mobile infrastructure, and we’re looking for a Change Manager to join our Transformation & Change Management team. Reporting to the Head of Transformation & Change Management, you’ll play a pivotal role in embedding change across MBNL, ensuring our people, processes, data, and tools are fully ready to adopt new ways of working.

This role is critical in ensuring that transformational initiatives land successfully, align with our strategic goals, and deliver measurable benefits to our business and partners.

This is a hybrid role with a minimum of 2 days per week based in our Central Reading office.

What you’ll do

• Lead and deliver Change Impact Assessments (CIA) to identify gaps between current and future states across organisational design, processes, roles, tools, and data.
• Develop and manage Business Readiness Plans, integrating workstreams across people, process, IT, communications, training, data, and reporting.
• Collaborate effectively across matrixed teams, including MBNL, Shareholders, Suppliers, and key business stakeholders across IT, Commercial, Portfolio, Finance, HR & People, and Business SMEs.
• Support the Head of Transformation & Change Management in embedding readiness into project and programme governance and decision-making.
• Monitor readiness metrics, adoption, and engagement to inform go-live and exit decisions.
• Lead the implementation and execution of the post–go-live support framework.
• Champion continuous improvement, challenge the status quo, and act as a role model for the MBNL Way.

What You’ll Bring

• Proven experience leading business/operational readiness activities within large-scale transformational change programmes.
• Expertise in change impact assessment, readiness planning, and stakeholder engagement.
• Strong knowledge of organisational design, process improvement, and tools & data readiness.
• Background in telecoms or infrastructure sectors (preferred, but not essential).
• A collaborative mindset, with the ability to influence at all levels and drive engagement across diverse teams.

Nice to have:

• Professional qualification in Change Management (e.g., Prosci, APMG).

MBNL – building strength through inclusion.

At MBNL we embrace equality, diversity, and inclusion. People are at the heart of everything we do and collectively we strive to create an environment where everyone can flourish. By fostering an inclusive environment, we are championing each other’s uniqueness. Inclusion & Diversity within MBNL will unlock innovation and continue to evolve how we work, to help us deliver world class infrastructure for our Shareholders and their customers.

We will work creatively to offer flexible working arrangements, (like non-standard hours, part-time, remote working). We want to support you to build your career without sacrificing your personal priorities.

MBNL are proud recipients of the Armed Forces Covenant Gold Award, and Disability Confident accredited.