Location: Manchester/Hybrid/Remote First (up to 3 days a week in office while onboarding)

Type: Full-Time (5 days per week)

The Opportunity

Are you an experimentation specialist who wants to make testing faster, more reliable, and genuinely impactful? Open Partners is looking for a CRO Junior Partner to join our creative optimisation team and power our client growth. Working at the cross-section of data, user experience, and conversion strategy, you will help transform A/B testing from a series of one-off activities into a dependable, scalable engine for performance. You will bring the delivery firepower needed to run high-standard experiments across our portfolio, turning raw results into clear, commercial recommendations that clients trust.

Your Role & Responsibilities

End-to-End Test Execution: Design, build, QA, and launch live experiments across client websites, ensuring total validity and technical accuracy.

Roadmap Management: Keep experimentation programmes moving at pace and on scope, preventing blockers and maintaining momentum across cross-functional teams.

Data-Led Recommendations: Translate raw test data into clear, actionable insights rather than simple readouts, showing clients exactly what to do next.

Client Advisory: Serve as a trusted point of contact, presenting test strategies, hypotheses, and progress reports to both technical and non-technical stakeholders.

Process Optimisation: Help build a consistent, repeatable operating system for how experiments are planned, documented, QA'd, and reported across the agency.

Co-Intelligent Working: Combine your human intelligence with AI workflows to increase the speed, depth, and quality of analysis.

What Success Looks Like in 6 Months

Trusted Client Relationships: You are seen as a knowledgeable, dependable second point of contact that clients come to directly for optimisation advice.

Independent Ownership: You independently manage test design, development, QA, and live monitoring alongside your partner.

Standardised Operations: You have helped establish a consistent operating model that keeps QA issues low, eliminates dropped handovers, and accelerates test velocity.

Co-Intelligent Output: You routinely use AI-native tools to raise the bar on data reporting, analysis, and strategic roadmap contribution.

What You’ll Bring

Experimentation Craft: Proven ability to design, build, and QA valid, trustworthy A/B tests from start to finish.

Analytical Thinking: Strong analytical skills with a track record of turning test data into recommendations that influence decisions.

Delivery & Coordination: Exceptional organisation skills to hold workstreams together and keep multi-client programmes moving.

Clear Communication: Ability to explain complex testing concepts and data insights clearly, both in writing and in person.

Proactive Growth Mindset: A self-starter who spots issues early, adapts to new tools quickly, and takes full ownership of outcomes.

Our Values & Mindset

At Open Partners, we hire mindset first. It is the single biggest factor of success in our business, and we believe you can grow that mindset in any walk of life and career background. If you do not have direct industry experience but possess a fierce growth mindset and transferable skills to excel, we want to hear from you. We hold ourselves to three simple standards:

Smarter: Aim high, train hard, embrace next.
Faster: Learn fast, adapt fast, act fast.
Better: Think, say, and do what is best.

Ready to elevate your career? Apply today!