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
- Own the CRO strategy & roadmap, prioritisation and reporting, using funnel analysis to drive measurable uplifts to conversion rate.
- Ownership of the experimentation framework (hypothesis creation, backlog management, velocity targets)
- Types of testing (A/B, multivariate, server‑side vs client‑side)
- Governance (QA processes, avoiding test pollution, documentation)
- Personalisation at scale, delivering curated and customised user journeys across B2C and B2B
- Work hand‑in‑glove with our eCommerce and Performance Marketing Managers to drive improved paid media and website performance across our numerous domains.
- Continuously monitor and analyse growth metrics and campaign performance, turning data into clear insights and bold ideas that unlock new opportunities for optimisation and impact.
- Immerse yourself in the strategic thinking and decision making of our paid team and agencies, collaborating closely to launch high quality landing pages that stay aligned with campaigns, respond quickly to changing marketing needs and deliver engaging user experiences.
- Manage and lead multiple landing page initiatives from idea through to launch and optimisation, coordinating to keep work prioritised, visible and moving quickly while ensuring projects achieve clear goals and measurable impact.
- Balance fast moving trading activity with longer term growth strategy, enjoying the variety of switching between rapid experimentation and bigger strategic opportunities.
- Funnel analysis, ensuring all areas of customer journey is optimised in data‑driven fashion.
- 25 days holiday plus bank holidays
- Holiday purchase scheme available
- Pension – Salary exchange Scheme
- Life Assurance
- My Culligan benefits -Discount platform
- Culligan Product discounts
- Employee Assistance programmeOngoing Training and Development
- Enhanced maternity, paternity, and grandparent leave
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