Conversion Rate Optimisation (CRO) Specialist

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

We are seeking a data-driven Conversion Rate Optimisation Specialist to own and accelerate on-site and in-app conversion performance across our dual sided marketplace (booking for marketplace, lead generation for SaaS). Reporting to the Head of Growth Marketing, you will design, run, and scale a structured experimentation programme across 14 markets, multiple languages, and multiple products, turning customer behaviour insights into measurable revenue impact. This role carries a dual objective: Conversion growth : Build and execute a continuous A/B and multivariate testing roadmap to improve conversion across the full B2C customer journey, from acquisition to booking. Experimentation culture : Embed a rigorous test-and-learn discipline across Product, UX, and Marketing, ensuring every major journey change is validated with data before it scales.

Responsibilities

• CRO Roadmap & Testing : Own the end-to-end CRO testing roadmap, from hypothesis generation and prioritisation through to test design, execution, and analysis across web and app.
• Multi-Market , Multi-Language Experimentation: Run and localise experiments consistently across 14 countries and languages, accounting for market-specific behaviour while protecting statistical rigor.
• Multi-Product Funnel Optimisation : Identify and resolve conversion friction across the marketplace's B2C funnels, partnering with Product and Data teams to prioritise the highest-impact opportunities.
• Insights & Reporting : Translate test results into clear, actionable insights and recommendations for senior stakeholders, building a shared knowledge base of what drives conversion.
• Cross-Functional Collaboration : Partner closely with Product, UX/Design, Data, and Performance Marketing to align experimentation priorities with broader growth and commercial goals.

About Treatwell

Hi, we're Treatwell. Nice to meet you. We're a team of 700 passionate and brilliantly talented people across Europe. We're the industry's smartest salon management software, all connected to Europe's leading bookings platform, working with over 95,000 salon partners across 14 countries, processing over 8 million bookings every month. And....breathe. But we're not done yet. We're on an exciting journey to digitally revolutionise the hair and beauty community. If this excites you, we might just have the role for you.

About you

• Tech experience : 3+ years of hands-on Conversion Rate Optimisation experience in the Tech sector, ideally within a multi-market, multi-language, multi-product business (mandatory). Marketplace or SaaS background is a strong plus.
• Agile & Data-Driven : Highly analytical, with a proven track record of using data and experimentation to challenge assumptions and drive measurable commercial outcomes.
• Execution & Delivery Mindset : A true "doer" who combines the strategic thinking to prioritise the right tests with the hands-on drive to run them end-to-end.
• Structured yet Scrappy : Highly structured in managing a testing roadmap across complexity and scale, yet scrappy and agile in getting experiments live quickly.
• Languages : English fluency is mandatory. Any other European language is a plus.

Benefits

• 28-days holiday, plus bank holidays
• Monthly 40 EUR/GBP Treatwell vouchers so you can treat yourself too
• Mental health support through our partnership with Open-Up
• Market-specific benefits

Equal Opportunities

Equal Opportunities Treatwell is an 'Open to All' employer and warmly welcomes everybody to the team. We are committed to making reasonable adjustments to the recruitment process as required.