Responsibilities

• Support the CRO Managers in all aspects of technical feasibility, sizeing, prioritistion 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 and any issues impacting validity.
• Maintain technical aspects of documentation and ticket 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 Devs on CRO best practice
• Collaborate with both technical and non-technical stakeholders to ensure effective and error free delivery of tests and tracking

Requirements

• Experienced in digital optimization through CRO programmes.
• Familiarity with CRO and experimentation tools (e.g., Optimizely, Adobe Target, Google Optimize, Launch Darkly) — hands‑on experience highly desirable.
• Hands‑on experience with HTML, CSS, Javascript and feature flags to execute best practice error free end-to-end front 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 collegues
• Strong organisational skills with a proactive, curious mindset and willingness to learn more advanced CRO techniques.

Benefits

• 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 tools and top-notch parental leave policies.