Job Description
The Product Transformation Specialist is a hands-on, execution-focused role within the Three Mobile Transformation team. Reporting to the Transformation Product Lead, this role supports the build, migration, and optimisation of tariffs, propositions, and product portfolios as part of transformation initiatives.
The role focuses on tariff simplification, rationalisation, portfolio build, testing, gap identification, and mitigation, while ensuring clear communication, accurate reporting, and alignment across stakeholders and programme governance. The Specialist supports the Transformation Product Lead and Manager in driving consistent decision-making and maintaining visibility of Three Mobile across wider programme forums.
What you’ll do
Tariff & Proposition Support
* Support tariff simplification and rationalisation activities, ensuring propositions and products are aligned to platform capabilities.
* Assist in the build of new or updated product portfolios, propositions, and Value-Added Services.
* Identify gaps, inconsistencies, or issues across the portfolio and work with Transformation Product Leads to resolve them.
Build, Testing & Issue Resolution
* Support end-to-end testing of products and propositions, including functional, regression, and user acceptance testing.
* Record, track, and manage defects, gaps, or risks, ensuring timely resolution and stakeholder alignment.
* Contribute to the development of mitigation plans for identified issues.
Communication & Reporting
* Represent Three Mobile in wider programme forums, ensuring visibility of product and proposition impacts, risks, and dependencies.
* Log and maintain records of all key decisions, actions, and escalations across assigned product areas.
* Ensure all communication cascades are complete, timely, and clearly understood by relevant stakeholders.
* Prepare updates, reports, and documentation for governance forums, steering committees, and programme boards.
Governance & Stakeholder Alignment
* Support the Transformation Product Lead and Manager in preparing for governance forums, ensuring all information is accurate and aligned.
* Ensure all stakeholders (Product, Proposition, GTM, Operations, Technology, and Commercial teams) are informed of changes, decisions, and migration impacts.
* Assist in escalation and resolution of any issues or blockers raised during programme delivery.
Customer & Commercial Focus
* Support initiatives that minimise disruption to customer journeys and experience during transformation.
* Ensure builds and migrations support commercial outcomes and operational readiness.
* Assist in monitoring and reporting impacts on customer satisfaction, complaints, and service performance.
Programme Delivery Support
* Support the Transformation Product Lead in delivering migration milestones and programme objectives.
* Track dependencies and highlight blockers or risks to ensure smooth delivery.
* Work within agile or programme delivery processes to support planning, backlog management, and releaseexecution.
Qualifications
Who you are
* Experience in product, proposition, or transformation delivery support roles, ideally within telecoms, mobile, or digital services.
* Hands-on experience with product testing, gap analysis, issue resolution, and mitigation.
* Strong communication, reporting, and documentation skills; able to maintain visibility across multiple stakeholders.
* Comfortable representing the business in programme forums and escalating issues appropriately.
* Team player with strong collaboration skills, able to support leads and managers effectively.
Worried that you don’t meet all the desired criteria exactly?
We know that everyone is unique, with multiple aspects to their identity and different experiences behind them. We are passionate about Inclusion for All and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to apply as you may be the right candidate for this role or another role, and our recruitment team can help you see how your skills fit in.
What we offer
We care about our people’s success by offering great pay, bonuses, up to 28 days off plus bank holidays, and paid time for charity work. You can personalise our benefits for you and your family, like discounts, vouchers, a pension plan and loads more. We help with your career through our amazing learning & development tools.
Additional Information
Need to know
We are regulated by the Financial Conduct Authority and all offers of employment for this role are subject to background checks, including criminal (DBS) and financial checks to meet the regulators standards.
We believe everyone should have the opportunity to interview for a role that matches their skills. In collaboration with our Talent, Diversity & Inclusion teams and our employee-led DEI Networks, we identified a range of reasonable adjustments to help you feel comfortable and perform at your best self during the interview process. If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, a sign language interpreter, or assistive technology, please contact your recruiter directly or email jobs@three.co.uk for guidance.
We use AI in different parts of our business to boost innovation, improve efficiency, and create new opportunities. We know many candidates use AI to fine-tune their CVs or prepare for interviews, but what we really care about is your unique experiences and achievements.
During the interview, we want you to rely on your own knowledge and skills to show us who you really are—your personality, creativity, and abilities. Above all, we’re looking for authenticity and can’t wait to get to know the real you.
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