Role Summary
We're looking for a Senior Growth Engineer who will lead Conversion Rate Optimisation and own experimentation across our platform. You'll design, build, and analyse A/B tests that drive measurable conversion rate optimisation improvements across our driver and host journeys. This is a hands‑on technical role at the intersection of engineering, data, marketing and product. You won't just follow a roadmap; you will help define it by proving what works.
What You'll Do
* Operate with urgency and treat conversion rate as your responsibility.
* Build and maintain the technical framework that allows us to run A/B tests without impacting site performance.
* Design and implement experiments across our host and driver journeys.
* Work across front‑end and back‑end to ensure tracking is accurate and tests are robust.
* Use analytics and heatmaps to challenge the status quo and propose high‑impact experiments.
* Translate business goals into technical requirements, ensuring marketing and product objectives are technically feasible and secure.
Your Background
* 3+ years in Full‑Stack or Front‑end Development; product‑mindful.
* Deep experience with JavaScript, Vue.js/Nuxt; familiarity with Laravel/PHP is a major advantage.
* Solid grasp of A/B testing statistics (p‑values, significance, sample sizing).
* Experience with experimentation platforms.
* Comfortable with modern CI/CD (GitHub) and containerisation (Docker).
Key Skills
* Focus on the 20% of effort that drives 80% of the impact.
* Prefer shipping and learning over perfect, over‑engineered code.
* Communicate concerns during the discovery phase, working with stakeholders to reach solutions that are both secure and commercially effective.
Location
London
Benefits
* 24 days annual leave, increasing after 3 years (up to 3 additional days).
* Birthday off.
* Hybrid working – 3 days per week in London, reducing to 1 day per month after probation.
* Enhanced maternity and paternity leave.
* Learning and development opportunities.
* Gym membership (PureGym or discounted alternatives).
* Mental health and wellbeing support via Canada Life.
* Cycle and tech schemes.
* Health Cash plan through Medicash.
* Pension scheme via Nest.
* Discounted insurances and lifestyle savings via Vivup.
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