Lead CRO Developer

• Lead the technical delivery of A/B and multivariate tests, ensuring high-quality, performant and scalable implementations across our digital platforms.

Build Optimisation Experiences:

• Develop customer experiences using JavaScript, HTML and CSS, creating experiments and personalisation campaigns that improve conversion and user engagement.

Partner Across the Business:

• Work closely with UX, Analytics and Marketing teams to translate ideas into measurable experiments and optimisation opportunities.

Drive CRO Best Practice:

• Champion experimentation methodologies, coding standards and technical governance, ensuring reliable and statistically sound test implementations.

Optimise Performance:

• Ensure experiments have minimal impact on page performance, accessibility and Core Web Vitals while maintaining an excellent customer experience.

Technical Leadership:

• Mentor developers, conduct code reviews, support technical decision making and help evolve the team’s development standards and ways of working.

Platform Expertise:

• Configure and develop within experimentation platforms such as Optimizely, Adobe Target or similar technologies, supporting both client-side and server-side experimentation where appropriate.

Continuous Improvement:

• Stay up to date with emerging CRO techniques, browser capabilities and front-end technologies, identifying opportunities to improve our experimentation capability.

• Extensive experience developing A/B tests, personalisation campaigns or optimisation solutions within a commercial environment.
• Expert knowledge of JavaScript, HTML and CSS, with a strong understanding of modern web development principles.
• Experience working with experimentation platforms such as Optimizely, Adobe Target, VWO, AB Tasty or similar.
• Proven leadership experience, including mentoring developers, leading technical discussions and promoting engineering best practice.
• Strong understanding of website performance, accessibility, cross-browser compatibility and responsive design.
• Experience working alongside UX, Product and Analytics teams throughout the experimentation lifecycle.
• Excellent problem-solving skills with a passion for delivering measurable improvements to customer experience and commercial performance.
• Strong communication and stakeholder management skills, with the ability to explain technical concepts to both technical and non-technical audiences.

• Hybrid working (we’re in the office approximately 2 days per month)
• Access to a generous discretionary profit share scheme
• Colleague discounts on our client flights and our client packages

We’re working together to deliver an amazing journey, literally! We work together to really drive forward a ‘Customer First’ ethos, creating unforgettable package holidays and flights. We couldn’t do it without our wonderful people.

Our client is a leading UK airline and holiday company.