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Frasers Group

Senior Experimentation Manager

This role is for a Senior Experimentation Manager focused on e-commerce, managing a team to implement A/B testing and experimentation strategies. It offers a permanent contract with a hybrid work location and requires expertise in GA4 and experimentation tools.
🌎 Country
United Kingdom
🏝️ Location
Hybrid
📄 Contract
Full-time
🪜 Seniority
Mid-Senior level
💰 Range
Unknown
💱 Currency
£ GBP
💸 Pay
Unknown
🗓️ Discovered
August 23, 2025
📍 Location detailed
London, England, United Kingdom
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🧠 Skills
#Segment #GA4
Role description
At Frasers Group we’re rethinking retail. Through digital innovation and unique store experiences, we’re serving our consumers with the world’s best sports, premium and luxury brands globally. As a leader in the industry, we’re elevating the retail experience for our consumers through our collection of established brands, including Sports Direct, FLANNELS, USC, Frasers, and GAME. Why join us? Our vision – we are building the worlds most admired and compelling brand ecosystem Our purpose – we are elevating the lives of the many with access to the world’s best brands and experiences At Frasers Group, we fear less and do more. Our people are forward thinkers who are driven to operate outside of their comfort zone to change the future of retail, embracing challenges along the way. The potential to elevate your career is massive, the experience unrivalled. To be able to make the most of it you need to live and breathe our principles: • Think without limits - Think fast, think fearlessly, and take the team with you • Own it and back yourself - Own the basics, own your role and own the results • Be relevant - Relevant to our people, our partners and the planet Are you ready to join the Fearless? Job Description This is a leading role in our Experimentation Centre of Excellence, shaping the experimentation strategy across all customer-facing functions — from Product and Personalisation to Trade and Marketing. Managing a small team, you'll own and drive best-in-class experimentation practices across the whole group, ensuring we’re making smarter decisions and building better customer experiences. You’ll work cross-functionally to validate product features, optimise performance, and embed a high bar for test design, execution and learning. Key Responsibilities Build a Best-in-Class Experimentation Culture • Define and champion experimentation standards across both client-side and server-side A/B testing. • Lead the delivery of a consistent framework for hypothesis-led testing — from conversion rate optimisation to new product validation. • Be the go-to expert on causal inference and offsite experimentation approaches to measure marketing and media impact when A/B testing isn’t possible. Operate a Centre of Excellence • Manage a small team of 3 direct reports. • Act as a central advisor across Product, Trade, Personalisation, and Marketing functions, coaching teams on experimentation thinking. • Embed test-and-learn principles into product development lifecycles and roadmap decisions. • Govern the experimentation pipeline to ensure alignment with commercial priorities and speed of learning. Insight & Enablement • Partner with analytics / implementation to ensure meaningful KPIs, robust implementation, and actionable insight from every test. • Drive knowledge sharing of experimentation learnings across brands, platforms, and functions. • Bring visibility to where we’re learning fastest — and where we need to invest to improve. Tooling & Measurement Stack • Own and evolve how we use our experimentation stack — Optimizely, Twillio Segment, GA4, and ContentSquare — ensuring it’s integrated and fit for purpose. • Collaborate with engineering and data teams to ensure measurement accuracy and data integrity at scale. Qualifications Must-Have: • Experience designing and scaling experimentation programs in a fast-paced e-commerce or digital product environment. • Strong understanding of A/B testing methodologies, including client-side and server-side execution. • Familiarity with offsite experimentation techniques like causal inference / geo-testing. • Proven ability to partner with cross-functional teams and influence product, marketing, and trading stakeholders. • Hands-on experience with experimentation tools, ideally Optimizely, and measurement platforms like GA4 and ContentSquare. Nice to Have: • Experience operating within a multi-brand retail ecommerce environment • Exposure to personalisation programs or feature flagging at scale. Additional Information Along with your benefits package we also offer a wide range of perks for our colleagues: Reward, Recognition and Opportunities Frasers Champion- Our employees are at the heart of our business and we ensure individuals are recognised every single month for their hard work. Frasers Champion is a peer nominated scheme where 8 winners will receive double their pay for a month where they have thought without limits, owned it or been relevant. Frasers Festival – An event like no other! Frasers Festival is our celebration for Head Office and Retail Staff across the UK and Europe – hosting a MEGA brand village, guest speakers from the world's biggest brands, evening entertainment, the ultimate Frasers Fearless Fitness Challenge and much more. CEO Sessions – Once a quarter we offer 20 employees the opportunity to attend our “CEO Sessions” ran by our CEO and leadership team. Employees have the chance to connect, network and submit questions around specific topics such as our Sports or Luxury business. Retail Reconnect – In order to build the planets most admired and compelling brand ecosystem, all employees must understand our business, product and customers. Each financial year, Head Office employees will gain insights by spending two days in one of our stores or the Warehouse. The goal is to learn how the work you do impacts our teams on the frontline, and to bring ideas back to the office which will improve how we work. Employee Welfare Frasers Fit – Our Everlast Gyms Team are on a mission to make our workforce the best, and fittest on the planet! We run free gym classes for employees as well as discounted memberships to our clubs. Frasers Fit is our wellbeing programme which aims to support and improve colleagues Physical, Financial & Mental wellbeing. The app is accessible for every employee and includes training, nutrition and lifestyle advice- all completely free. Retail Trust – We know that its not just about physical health, mental wellness is equally important which is why all of our employees get free access and support from the Retail Trust charity. This includes a 24 hour wellbeing helpline, wellness hub, counselling and financial/legal support. What’s next? Our Recruitment Team will be reviewing applications and all candidates will receive a response, whether you are successful or unsuccessful. Shortlisted applicants may be asked to confirm a few key details before being booked in for a first stage interview with the Recruiter- this will be behaviourally focussed and centred around how you align with our Culture and Values. If successful we anticipate two further interview stages with the Hiring Manager/wider team which will be more technically focussed and could include a presentation/task so we can see your skills in action.