Lead CRO Engineer — Experimentation & Optimization

Jet2.com and Jet2holidays; Leeds; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Hybrid working (office ~2 days per 2-4

Profit share scheme

Jet2flight & Jet2holidays discounts

Job summary

Jet2.com and Jet2holidays are seeking an experienced Lead CRO Developer to shape experimentation and optimisation across our digital platforms. You will lead the technical delivery of A/B and multivariate tests, and build personalised experiences to improve conversion and engagement.

You will mentor developers, set technical standards, and collaborate with UX, Analytics and Marketing to translate ideas into measurable experiments while ensuring strong performance, accessibility and Core Web

Qualifications

• Extensive experience developing A/B tests, personalisation campaigns or optimisation solutions in a commercial environment.
• Expert knowledge of JavaScript, HTML and CSS with modern web development principles.
• Experience with experimentation platforms such as Optimizely, Adobe Target, VWO, AB Tasty or similar.
• Proven leadership experience, including mentoring developers and guiding engineering best practices.
• Strong understanding of website performance, accessibility, cross-browser compatibility and responsive design.

Responsibilities

• Lead the technical delivery of A/B and multivariate tests across digital platforms.
• Develop customer experiences using JavaScript, HTML and CSS for experiments and personalisation campaigns.
• Collaborate with UX, Analytics and Marketing to translate ideas into measurable experiments.
• Champion experimentation methodologies, coding standards and technical governance.
• Ensure experiments have minimal impact on page performance and Core Web Vitals.

Skills

JavaScript

HTML

CSS

Experimentation platforms

Tools

Optimizely

Adobe Target

VWO

AB Tasty

Job description

Jet2.com and Jet2holidays are seeking an experienced Lead CRO Developer to shape experimentation and optimisation across our digital platforms. You will lead the technical delivery of A/B and multivariate tests, and build personalised experiences to improve conversion and engagement.

You will mentor developers, set technical standards, and collaborate with UX, Analytics and Marketing to translate ideas into measurable experiments while ensuring strong performance, accessibility and Core Web