CRO Engineer & Analytics Specialist

Harnham; Manchester; Hybrid; GBP 36,000 - 44,000; Full time

Benefits offered by this job

Exposure to high-volume lead gen & exp

Develop within a growing CRO function

Autonomy with significant testing

Job summary

Harnham is hiring a CRO Developer/Analyst in Greater Manchester for a hybrid role. You will build and deploy A/B tests, analyze performance, and drive optimisation across 40+ customer journeys in a fast-growing digital business.

You will work with CRO leadership to shape the experimentation roadmap, collaborating with marketing, paid media and development teams to maximise commercial impact.

Qualifications

• CRO or experimentation experience.
• Commercial experience with: JavaScript, HTML, CSS.
• 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 or AB Tasty or similar).
• Strong analytical and commercial mindset.

Responsibilities

• Build and deploy A/B tests from scratch.
• Deploy experiments using JavaScript, HTML and CSS.
• Analyse test performance.
• Identify conversion opportunities.
• Help shape the wider experimentation roadmap.
• Analyse conversion funnels and customer journeys.
• Turn findings into clear recommendations that improve performance.
• Prioritise experiments based on commercial impact.

Skills

CRO experience

JavaScript

HTML

CSS

Tools

Convert.com

Optimizely

VWO

AB Tasty

Job description

Harnham is hiring a CRO Developer/Analyst in Greater Manchester for a hybrid role. You will build and deploy A/B tests, analyze performance, and drive optimisation across 40+ customer journeys in a fast-growing digital business.

You will work with CRO leadership to shape the experimentation roadmap, collaborating with marketing, paid media and development teams to maximise commercial impact.