VodafoneThree - Digital CRO Specialist
Location: Newbury + Hybrid
Working Hours: Full time 37.5 hours per week – Mon to Fri
Key Responsibilities:
* Support the CRO Managers in all aspects of technical feasibility, sizing, prioritisation and delivery across the CRO, future capability and personalisation roadmaps.
* Work closely with UX, Design, Product and Engineering teams to develop test‑ready assets and experiences.
* Build, configure and ensure rigorous QA approvals for experiments across CRO platforms.
* Utilise HTML, CSS and Javascript to execute error free CRO experiments ensuring correct audiences, code, triggers, targeting and measurement rules.
* Monitor experiments in‑flight, checking sample distribution, tracking integrity, audience behaviour and any issues impacting validity.
* Maintain technical aspects of documentation and tickets including requirements, test logs and results repositories.
* Contribute to a culture of experimentation, encouraging continuous improvement and helping educate teams on best practice.
* Train, guide and support Engineering Developers on CRO best practice.
* Collaborate with both technical and non-technical stakeholders to ensure effective and error free delivery of tests and tracking.
Qualifications:
* Experienced in digital optimisation through CRO programmes.
* Familiarity with CRO and experimentation tools (e.g., Optimizely, Adobe Target, Google Optimize, LaunchDarkly) – hands‑on experience highly desirable.
* Hands‑on experience with HTML, CSS, Javascript and feature flags to execute best practice error free front‑end and full‑stack CRO activities.
* Basic understanding of statistical significance and key digital performance metrics.
* Comfortable collaborating with UX, Design and Engineering teams to shape and build test variants.
* Strong attention to detail with the ability to manage multiple small experiments simultaneously.
* Good written and verbal communication skills, able to work with engineers and non‑technical colleagues.
* Strong organisational skills with a proactive, curious mindset and willingness to learn more advanced CRO techniques.
We are regulated by the Financial Conduct Authority. All offers of employment for this role are subject to background checks, including criminal (DBS) and financial checks to meet regulator standards.
We are committed to inclusion and welcome applicants from all backgrounds. Reasonable adjustments are available throughout the interview process. Contact our recruiter or email jobs@three.co.uk for guidance.
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