
Harnham
CRO Developer
Job Description
Salary: £76,000 - 83,000 per year
Requirements:- Extensive CRO and experimentation experience
- Hands-on test build and development experience
- Proven experience delivering successful experimentation programmes
- Strong knowledge of A/B testing methodologies
- Hands-on experience with platforms such as Convert.com, Optimizely, VWO or similar
- Experience working with high-traffic websites
- Strong understanding of customer journey optimisation
- Excellent stakeholder management and communication skills
- Commercial mindset with a focus on measurable outcomes
- Experience within lead generation or performance marketing environments is advantageous
- Previous mentoring or management experience is beneficial
- Own the CRO roadmap across multiple digital brands
- Design, implement and analyse A/B and multivariate tests
- Build experimentation frameworks and best practice
- Identify opportunities to improve customer journeys and conversion performance
- Partner with Product, Marketing, PPC and Development teams
- Use customer behaviour data to prioritise optimisation opportunities
- Measure commercial impact and present recommendations to stakeholders
- Help establish a long-term experimentation culture across the business
- Marketing
More:
We are an international digital marketing and customer acquisition business that owns and operates a portfolio of high-performing online brands across both B2B and B2C markets. Since launching in 2013, we have grown to over 100 employees with operations across the UK, North America, Australia and Europe, supporting millions of customer interactions every year. We own our digital platforms, giving our team complete control over customer acquisition, experimentation and optimisation across the entire user journey. With over 40 products, multiple acquisition funnels and high volumes of website traffic, experimentation is a key commercial growth lever with strong backing from senior leadership. This is a greenfield opportunity based in Cheshire with a hybrid working model of three days a week in the office, offering significant autonomy, senior stakeholder exposure and a clear opportunity to build and lead the CRO function as it grows.
last updated 33 week of 2026
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About Harnham

Harnham
Cheshire East
IT
Skills & Technologies
Inferred from job description
Salary Insight
£79,500
This role
£55,000
UK median
This salary is 45% above the UK median for Developers (£55,000/yr).
Based on 2024–2025 UK technology sector benchmarks