We are seeking a commercially driven CRO Manager to own our conversion rate optimisation journey. Conversion optimisation is the key to delivering our ambitious growth targets and sits at the heart of everything we do on site in order to acquire and retain customers.
As part of our growing global Digital team, you’ll help shape best-in-class personalisation journeys that drive conversion. You’ll support our Performance Marketing Manager and eCommerce Manager in embedding CRO principles across our multiple domains ensuring that every decision is backed by insight, and every improvement is validated through testing.
Our CRO manager supports conversion initiatives by thoroughly understanding our audiences, identifying quality segments, spotting opportunities to move faster and working across multiple teams to ensure cohesiveness and maintain agreed objectives. They live and breathe data, identify conversion improvement opportunities or threats on a daily basis and are involved in initiatives from the start but also own monitoring and reporting from “go live”.
This is a fast-paced environment where curiosity, initiative and a willingness to get stuck in are valued
Who you are
· Strong strategic thinking with deep understanding of user behaviour, digital performance metrics and conversion theory
· Experience working with marketing teams and developers to support campaigns through website and landing page development.
· Solid experience in CRO / experimentation roles
· Strong knowledge of tools like VWO
· Advanced experience with GA4 (essential) and ideally Piwik Pro
· Strong analytical thinking - confident with data, testing logic and statistical significance
· Ability to translate insight into commercial recommendations
· Basic understanding of HTML / CSS / JavaScript
Must-Have Experience
· 5–8 years of experience in CRO of optimising journeys
· Proven expertise across tools like GA4 and VWO
· Experience collaborating on campaigns with multi-disciplinary stakeholders to deliver commercial benefits
· Hands-on knowledge of analytics, tracking, and attribution tools
· Track record of delivering measurable commercial outcomes
· Experience managing agencies and cross-functional stakeholders
Core Competencies
· Strategic & Commercially Minded – connects marketing activity to revenue and business growth
· Performance-Driven – relentless focus on ROI, efficiency, and outcomes
· Hands-On & Accountable – takes ownership from strategy through to execution
· Data-Led Decision Maker – uses insight, testing, and analytics to guide actions
· Advanced Measurement Mindset – understands attribution, incrementality, and forecasting
· AI & Automation Aware – leverages tools and automation to scale performance
· Collaborative & Influential – builds strong relationships across teams
· Agile & Outcome-Oriented – adapts quickly and focuses on impact
· Responsible & Ethical – applies high standards in privacy, compliance, and brand protection
Requirements
Benefits

Culligan UK delivers innovative, high-quality water solutions to homes and businesses across the United Kingdom.
Our solutions include:
- Bottled and Mains-Fed Watercoolers
- Hospitality water systems
- Multi-functional taps
- Water softeners and filtration systems
- Customised water refill stations and drinking fountains for public, offices, and commercial spaces
Driven by a mission to provide better, sustainable drinking water for everyone — at home, at work, or on the go, we're helping customers reduce reliance on single-use plastic and enjoy great-tasting, high-quality water every day.
Part of Culligan International, a global leader in water treatment for more than 85 years, we combine local expertise with world-class technology to meet a wide range of hydration needs.