CRO Specialist

Harnham - Data & Analytics Recruitment; Lancashire; Hybrid; GBP 34,000 - 46,000; Full time

Benefits offered by this job

£40,000 salary

Hybrid work environment

Exposure to high-volume testing

Job summary

Harnham - Data & Analytics Recruitment in Greater Manchester is seeking a hands-on CRO Developer/Analyst to optimise 40+ customer journeys through experiments and analytics. The role blends technical implementation with behavioural insights to drive commercial impact, in a hybrid setup.

You will build and deploy A/B tests using JavaScript, HTML and CSS, analyse results, and collaborate with Marketing, Product and Development teams to scale successful tests across markets.

Qualifications

• CRO or experimentation experience.
• Commercial experience with: JavaScript, HTML, CSS.
• Ability to independently build and launch A/B tests.
• Understanding of statistical testing principles: significance, p-values, confidence intervals, sample sizes.
• Experience using experimentation platforms (Convert, Optimizely, VWO, AB Tasty or similar).
• Strong analytical and commercial mindset.
• Nice to have: Lead generation experience.
• Nice to have: Behavioural economics knowledge.
• Nice to have: B2B and B2C optimisation experience.
• Nice to have: Paid Search or Paid Social understanding.
• Nice to have: International CRO experience.

Responsibilities

• Build and deploy A/B tests using HTML, CSS and JavaScript.
• Deploy experiments and manage testing programmes.
• Analyse test performance and turn findings into actionable recommendations.
• Identify conversion opportunities across customer journeys.
• Help shape the wider experimentation roadmap.
• Collaborate with Marketing, Paid Search, Paid Social and Development teams.
• Communicate results and recommendations to stakeholders.

Skills

CRO / experimentation experience

Strong analytical mindset

Tools

JavaScript

HTML

CSS

Job description

CRO Specialist

£40,000

Greater Manchester - Hybrid

I'm hiring a CRO Developer/Analyst for one of the UK's leading customer generation businesses, operating multiple high-traffic B2B and B2C brands across international markets.

This is a fantastic opportunity for someone who enjoys combining CRO, experimentation, front-end development, and analytics to drive measurable commercial impact.

Working alongside the CRO Lead, you'll help optimise over 40 customer journeys, building and deploying experiments that improve conversion rates, lead quality, and revenue.

The role

This is a hands-on CRO position.

You'll be responsible for:

• Building A/B tests from scratch
• Deploying experiments using JavaScript, HTML and CSS
• Analysing test performance
• Identifying conversion opportunities
• Helping shape the wider experimentation roadmap

This is not a pure developer role and it's not a pure analyst role. The ideal person enjoys moving between technical implementation, experimentation, customer behaviour analysis, and commercial problem solving.

What you'll be doing

Experimentation & CRO

• Build and deploy A/B tests using HTML, CSS and JavaScript.
• Use to manage and execute testing programmes.
• Design experiments that improve conversion rates and lead quality.
• Develop structured testing roadmaps and prioritisation frameworks.

Performance Analysis

• Analyse conversion funnels and customer journeys.
• Use behavioural analytics platforms such as FullStory, Mouseflow or similar.
• Evaluate test performance using statistical significance, confidence intervals and sample size calculations.
• Turn findings into clear recommendations that improve performance.

Commercial Optimisation

• Prioritise experiments based on commercial impact.
• Improve profitability, lead quality, and conversion performance.
• Work across multiple products and markets to scale successful tests.

Stakeholder Collaboration

• Partner with Marketing, Paid Search, Paid Social and Development teams.
• Communicate results and recommendations to stakeholders.
• Support a culture of experimentation and continuous improvement.

What they're looking for

Essential

• CRO or experimentation experience
• Commercial experience with:
  • JavaScript
  • HTML
  • CSS
• Ability to independently build and launch A/B tests.
• Understanding of statistical testing principles:
  • significance
  • p-values
  • confidence intervals
  • sample sizes
• Experience using experimentation platforms (Convert, Optimizely, VWO, AB Tasty or similar).
• Strong analytical and commercial mindset.

Nice to have

• Lead generation experience
• Behavioural economics knowledge
• B2B and B2C optimisation experience
• Paid Search or Paid Social understanding
• International CRO experience

Why join?

• Work on 40+ products across multiple customer journeys.
• High-volume experimentation environment.
• Strong commercial ownership and impact.
• Opportunity to work directly with CRO leadership.
• Significant testing volume and autonomy.
• Fast-growing digital business with international reach.

Package

• £40,000 salary
• Opportunity to develop within a growing CRO function
• Exposure to high-volume lead generation and experimentation programmes

Ideal backgrounds

• CRO Executive
• CRO Analyst
• CRO Developer
• Experimentation Specialist
• Conversion Optimisation Executive
• Digital Optimisation Specialist
• Front-End CRO Specialist

If you enjoy building experiments, analysing customer behaviour, and using data to improve commercial performance, this is a brilliant opportunity to join a business where CRO is a genuine priority.