Propositions Specialist

Job Description

The Proposition Specialist is a hands-on role supporting the development, build, and delivery of Three Mobile propositions. Reporting to the Proposition Manager, this role helps develop, build, and execute initiatives across tariffs, offers, and Value-Added Services, ensuring propositions meet customer needs, deliver commercial outcomes, and are successfully launched and serviced across all channels.

This role is ideal for a team player who thrives on delivery, problem-solving, and collaboration, supporting both new and live propositions to achieve customer and business goals.

Key Roles & Responsibilities:

Proposition Development & Build

• Support the development and build of mobile propositions, including tariffs, offers, and Value-Added Services.
• Help ensure propositions meet customer needs, brand priorities, and commercial objectives.
• Contribute to the optimisation of live propositions, improving customer journeys, commercial performance, and CX outcomes.

Customer Experience & Journey Improvements

• Help implement improvements to proposition journeys in partnership with CX and Operations teams.
• Support initiatives to reduce complaints, friction points, and customer effort.

Commercial Performance & GTM Execution

• Assist in the delivery of commercial initiatives and campaigns alongside Trading, Product, Marketing, and Channel teams.
• Help build and execute GTM plans, supporting operational readiness and successful launches.
• Contribute to the delivery of promotions and enhancements to support commercial targets.

Insight & Market Understanding

• Help monitor market trends, competitor activity, and customer behaviour to inform proposition decisions.
• Assist in producing insight-driven recommendations for proposition enhancements and prioritisation.

Transformation & Platform Delivery

• Contribute to proposition-side build, testing, and configuration for transformation programmes.
• Support smooth delivery of proposition changes with minimal disruption to customer experience or operations.

Cross-Functional Collaboration & Governance

• Collaborate with Technology, Finance, Legal, Operations, and other teams to deliver propositions on time and in line with regulatory and commercial requirements.
• Help prepare updates for governance forums, reporting progress, risks, and key outcomes.

Teamwork & Communication

• Act as a reliable and flexible team player, supporting the Proposition Lead and Senior Manager in achieving their objectives.
• Share progress, issues, and learnings clearly across the team and stakeholders.
• Contribute ideas and best practice to help improve team ways of working.

Qualifications

Who You Are:

• Experience in proposition support, product, or commercial delivery roles.
• Understanding customer needs, commercial outcomes, and channel operations.
• Strong organisational skills with the ability to manage multiple delivery tasks effectively.
• Comfortable producing accurate reports, tracking KPIs, and raising issues as needed.
• Team player with strong collaboration and communication skills.
• Exposure to GTM planning, launch execution, and operational readiness.
• Familiarity with transformation programmes or platform migrations.

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 [email protected] 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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