CRO Developer
Posted Today by Harnham - Data & Analytics Recruitment
Negotiable
Outside
Remote
London, UK
Summary: This role is for a CRO Developer on a 6-month contract, focused on enhancing experimentation and conversion performance for a digital product. The position requires hands-on involvement in A/B testing and collaboration with various teams to drive optimization. The ideal candidate will thrive in a fast-paced environment and have a direct impact on commercial outcomes. This opportunity is fully remote and outside IR35 regulations.
Key Responsibilities:
- Own and deliver a CRO and experimentation roadmap across web and digital touchpoints.
- Design, build, and implement A/B and multivariate tests using modern experimentation platforms.
- Work hands-on with Front End code to deploy experiments in a React and Next.js environment.
- Partner with product, engineering, and analytics teams to identify and prioritise high-impact tests.
- Analyse experiment performance using web analytics tools and translate results into actionable insight.
- Contribute new ideas and optimisation opportunities across the wider customer journey, including non-web channels where relevant.
Key Skills:
- Strong experience as a Front End developer with a focus on CRO and experimentation.
- Proven capability working in data-led optimisation or experimentation environments.
- Deep understanding of web analytics and experiment measurement, including tools such as GA4 or similar.
- Hands-on experience with CRO platforms such as VWO, Optimizely, GrowthBook, or equivalent.
- Comfortable operating in fast-paced, hands-on teams with minimal onboarding.
- Background in agency, marketplace, or high-growth digital businesses is highly relevant.
Salary (Rate): £350 Daily
City: London
Country: UK
Working Arrangements: remote
IR35 Status: outside IR35
Seniority Level: undetermined
Industry: IT
CRO Developer 6 Month Contract Outside IR35 £300-350 Day Rate Fully Remote (UK-Based) This is a high-impact CRO Developer contract where you will play a pivotal role in accelerating experimentation and conversion performance across a well-established digital product. The project is ideal for someone who thrives in hands-on environments, can move quickly from insight to implementation, and wants to see a direct link between their work and commercial outcomes. The Company They are a digital-first marketplace operating in a highly competitive consumer space, with a strong technology-led culture and an established international presence. The business has reached a mature stage of growth and is now heavily focused on optimisation and revenue performance. With distributed engineering teams and a strong product mindset, they prioritise experimentation, data-driven decision-making, and rapid iteration. The Role and Deliverables
- Own and deliver a CRO and experimentation roadmap across web and digital touchpoints.
- Design, build, and implement A/B and multivariate tests using modern experimentation platforms.
- Work hands-on with Front End code to deploy experiments in a React and Next.js environment.
- Partner with product, engineering, and analytics teams to identify and prioritise high-impact tests.
- Analyse experiment performance using web analytics tools and translate results into actionable insight.
- Contribute new ideas and optimisation opportunities across the wider customer journey, including non-web channels where relevant.
- Strong experience as a Front End developer with a focus on CRO and experimentation.
- Proven capability working in data-led optimisation or experimentation environments.
- Deep understanding of web analytics and experiment measurement, including tools such as GA4 or similar.
- Hands-on experience with CRO platforms such as VWO, Optimizely, GrowthBook, or equivalent.
- Comfortable operating in fast-paced, hands-on teams with minimal onboarding.
- Background in agency, marketplace, or high-growth digital businesses is highly relevant.