Global CRO Specialist — Drive Multi-Market Conversion Growth

Treatwell; Amsterdam; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

28 days holiday

Treatwell vouchers

Mental health support

Market-specific benefits

Job summary

Treatwell is hiring a data-driven Conversion Rate Optimisation Specialist to own on-site and in-app performance across our dual-sided marketplace. You will design, run, and scale a structured experimentation programme across 14 markets, multiple languages, and multiple products, turning customer insights into measurable revenue impact.

Reporting to the Head of Growth Marketing, you will build a rigorous test-and-learn discipline across Product, UX/Design, Data and Performance Marketing, ensuring

Qualifications

• 3+ years of hands-on CRO in tech, preferably multi-market, multi-language, multi-product.
• Proven track record using data and experimentation to drive measurable commercial outcomes.
• English fluency mandatory; other European languages a plus.

Responsibilities

• Own the end-to-end CRO testing roadmap, from hypothesis generation to test design, execution, and analysis across web and app.
• Run and localise experiments across 14 countries and languages, protecting statistical rigor.
• Identify and resolve conversion friction across B2C funnels, partnering with Product and Data teams.
• Translate test results into actionable insights for senior stakeholders.
• Partner with Product, UX/Design, Data, and Performance Marketing to align experimentation priorities.

Skills

CRO

Data-driven mindset

Agile methodologies

Experimentation

Test design

English fluency

Job description

Treatwell is hiring a data-driven Conversion Rate Optimisation Specialist to own on-site and in-app performance across our dual-sided marketplace. You will design, run, and scale a structured experimentation programme across 14 markets, multiple languages, and multiple products, turning customer insights into measurable revenue impact.

Reporting to the Head of Growth Marketing, you will build a rigorous test-and-learn discipline across Product, UX/Design, Data and Performance Marketing, ensuring