VodafoneThree: Finance Manager – Strategic Planning

Location: Newbury + Hybrid; Duration: 12 months. Working hours: Full time 37.5 hours per week – Mon to Fri. Grade: 12.

Job Description

Within this context, the CRO Developer plays a foundational role in supporting the organisation’s conversion rate optimisation agenda. Working alongside the CRO Manager, the Specialist helps design, deliver and analyse digital experiments across all brands, lines of business and customer journeys. This role contributes to the optimisation programme by helping shape hypotheses, build test variants, manage test setups and support with the QA and technical delivery of all testing. It offers a strong development path into a more senior CRO, UX or digital performance career.

Responsibilities

• Partner with CRO Managers to support technical feasibility assessments, sizing, prioritisation, and delivery across CRO, future capability, and personalisation roadmaps.
• Collaborate closely with UX, Design, Product, and Engineering teams to create test‑ready assets and customer experiences.
• Build and configure experiments across CRO platforms, ensuring high‑quality QA reviews and accurate implementation.
• Use HTML, CSS, and JavaScript to deliver reliable CRO experiments with correct audiences, triggers, targeting, and measurement rules.
• Monitor experiments in real time, ensuring sample balance, tracking accuracy, audience behaviour integrity, and overall experiment validity.
• Maintain accurate documentation, including requirements, test logs, outcomes, and associated tickets.
• Contribute to an open, learning‑focused experimentation culture, promoting continuous improvement and knowledge sharing across teams.
• Provide guidance and training to Engineering colleagues on CRO best practices, supporting their ongoing development.
• Work effectively with technical and non‑technical stakeholders to deliver high‑quality tests, insights, and tracking implementations.

Qualifications

• Experience with digital optimisation and CRO programmes, including the use of experimentation tools such as Optimizely, Adobe Target, Google Optimize, or LaunchDarkly.
• Hands‑on skills in HTML, CSS, JavaScript, and feature flags to deliver accurate, high‑quality front‑end and full‑stack CRO activities.
• Understanding of statistical significance and key digital performance metrics, with the ability to interpret experiment outcomes.
• Collaborative approach, working confidently with UX, Design, Product, and Engineering teams to shape and develop test variants.
• Strong organisational and communication skills, with attention to detail, the ability to manage multiple experiments simultaneously, and a proactive, curious mindset to develop advanced CRO capabilities.

Additional Information

Worried that you don’t meet all the desired criteria exactly? We encourage you to apply; we are committed to creating a workplace where everyone can thrive, whatever their personal or professional background. 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.