Conversion Rate Optimization Specialist in London

We believe in bold ideas, diverse perspectives, and the drive to transform knowledge into impact. Here, your curiosity fuels progress, your voice shapes innovation, and your ambition helps redefine what’s possible within science and learning. We are a culture that obsesses over impact, challenges, and drives what’s next to power infinite possibilities for our customers, colleagues and society at large.

About the Role: The Conversion Rate Optimization Specialist turns the WEO Manager’s strategy into measurable business growth. This role is responsible for driving higher conversion rates and increased revenue by executing experimentation and personalization initiatives within the Web Marketing roadmap. By coordinating with Design/UX, Content, Analytics and Martech teams, the Specialist ensures that every site change is proven to improve the customer journey and deliver clean, actionable data. Beyond just launching tests, this role helps maximize business impact through targeted personalization. By identifying winning experiments, configuring audience segments, and personalization rules, the Specialist ensures that we are showing the right content to the right people to reduce friction and increase sales. They will turn both winning experiments and personalization strategies into permanent site features that drive conversion and revenue for Wiley. The successful candidate will be detail-oriented and data-driven, with a passion for turning insights into action. They will ensure every experiment and personalization campaign is technically flawless and designed to maximize ROI. This is a hands-on role for someone who thrives on precision, takes pride in clean data, and wants to see their work directly impact conversion and revenue.

Key Responsibilities & Duties:

• Experiment delivery & quality: Launch A/B and multivariate tests using detailed hypothesis records. Use CSS/HTML to build front-end site changes. Run full QA to ensure tests work on all devices and browsers. Monitor live tests and flag performance drops immediately.
• Targeted personalization: Set up personalization rules based on WEO Manager’s strategy. Manage and update customer segments in the CDP. Verify that tailored content reaches the correct audience. Find and fix any targeting errors or gaps.
• Performance monitoring and analysis: Analyze data for statistical significance and revenue lift. Update performance dashboards with latest conversion stats. Create technical documentation for permanent site updates. Build test summaries for management reviews.
• Technical & cross-team coordination: Work with Analytics to verify data layer health, tracking accuracy, and privacy/consent rules. Partner with Martech to monitor platform syncs and tool performance. Sync with SEO/AEO Specialist to protect search rankings during tests. Secure all assets from Design/UX and Content teams before launch.
• Documentation & backlog support: Keep the experimentation backlog organized and prioritized. Log all plans, hypotheses, and results in standard formats. Build a searchable archive of all past test learnings.

Required Qualifications:

• Bachelor's degree in Digital Marketing, Computer Science, Data Analytics, or related field.
• 3+ years of professional experience working on website A/B testing or personalization.
• Proven track record of executing experiments that delivered measurable conversion improvements.
• Experience collaborating with cross-functional teams (product, design, analytics, engineering) to deliver testing and optimization initiatives.
• Proficiency in Adobe Analytics or GA4 to interpret test performance and personalization impact.
• Hands-on experience with testing platforms (e.g. Optimizely, VWO, Adobe Target).
• Understanding of statistical significance, sample sizes, and confidence intervals to determine valid test results.
• Ability to document clear test hypotheses tied to expected business outcomes.
• Understanding of a testing platform's Visual Editor and code settings.
• Ability to use basic CSS/HTML to ensure test variations look clean and professional.
• A clear understanding of core digital metrics (Conversion Rate, Bounce Rate, Lifetime Value etc.) and the ability to verify that test data is recording correctly in the dashboard.
• Ability to stay organized and keep the experimentation backlog up to date.
• A disciplined approach to checking that tests work on all devices and browsers.
• Meticulous attention to detail, particularly in QA and troubleshooting.
• Disciplined approach to documentation and knowledge management.
• Comfortable with evolving best practices and shifting priorities.

Wiley is an equal opportunity/affirmative action employer. We evaluate all qualified applicants and treat all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability, protected veteran status, genetic information, or based on any individual's status in any group or class protected by applicable federal, state or local laws. Wiley is also committed to providing reasonable accommodation to applicants and employees with disabilities. Applicants who require accommodation to participate in the job application process may contact tasupport@wiley.com for assistance.

We are proud that our workplace promotes continual learning and internal mobility. Our values support courageous teammates, needle movers, and learning champions all while striving to support the health and well-being of all employees. We offer meeting-free Friday afternoons allowing more time for heads down work and professional development, and through a robust body of employee programming we facilitate a wide range of opportunities to foster community, learn, and grow.

We are committed to fair, transparent pay, and we strive to provide competitive compensation in addition to a comprehensive benefits package.