26 to 50 of 161 A/B Testing Jobs in London

coordinating localisation and approvals across markets as needed. Use segmentation and performance analysis to generate data-driven hypotheses; design and implement A / B tests, applying statistical fundamentals (e.g. sample size, significance) to evaluate results. Drive the creative development and iteration pipeline, partnering with creative … over time and inform prioritisation and roadmap planning. Partner with data science and analytics to define success metrics, validate audience logic, and improve tracking / instrumentation where needed. Maintain operational rigour (e.g. QA, governance, documentation, and messaging guardrails) to support scalable, compliant communications. What you bring Bachelor's degree ...

nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Role Overview: As a Senior / Staff Data Scientist, you will help shape how PlayStation measures the impact of products, features and commercial initiatives through world-class experimentation, causal inference … provide technical leadership that enables teams across PlayStation to make faster, more confident business decisions. This role goes beyond traditional A / B testing. You will solve complex measurement problems where controlled experiments are difficult or impossible, applying modern causal inference, statistical modelling and machine ...

nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Role Overview As a Senior / Staff Data Scientist, you will help shape how PlayStation measures the impact of products, features and commercial initiatives through world-class experimentation, causal inference … provide technical leadership that enables teams across PlayStation to make faster, more confident business decisions. This role goes beyond traditional A / B testing. You will solve complex measurement problems where controlled experiments are difficult or impossible, applying modern causal inference, statistical modelling and machine ...

roll out tests continuously within brand-defined success metrics, guardrails, and policies. Rapidly prototype agentic flows hands-on: orchestration across specialised sub-agents, tool / function calling against internal platform APIs, prompt and context design, agent memory, and evaluation harnesses — proving value and feasibility before committing engineering investment. Take … rollback, audit trails, and attribution so every agent action is measurable and reversible. Define the trust architecture for agents acting on live experiences: preview / approve / undo flows, escalation triggers, explainability, and override tracking — patterns designed to be adopted by teams across Expedia Group as autonomous optimisation ...

solve complex business problems, generate actionable insights and support evidence-based decision-making across PlayStation. This role goes beyond traditional A / B testing. You will apply modern causal inference, statistical modelling and machine learning techniques to evaluate initiatives where controlled experiments are difficult … applying experimentation, causal inference, statistical modelling, machine learning or related analytical techniques to solve business problems. Good understanding of experimental design, A / B testing and modern causal inference methods, including quasi-experimental approaches. Experience applying data science, machine learning and statistical modelling ...

technology teams to inform strategic decision-making. Identify opportunities for growth, efficiency, and improved customer experience through data analysis. Support A / B and multivariate testing programmes and translate results into clear recommendations. Use quantitative and qualitative data sources to develop holistic performance … Google Analytics or similar). Solid understanding of digital customer journeys, conversion optimisation, and user behaviour analysis. Knowledge of experimentation frameworks, A / B testing, and performance optimisation. Experience working with data from multiple sources, including CRM, campaign platforms, and digital channels. Strong ...

solve complex business problems, generate actionable insights and support evidence-based decision-making across PlayStation. This role goes beyond traditional A / B testing. You will apply modern causal inference, statistical modelling and machine learning techniques to evaluate initiatives where controlled experiments are difficult … applying experimentation, causal inference, statistical modelling, machine learning or related analytical techniques to solve business problems. Good understanding of experimental design, A / B testing and modern causal inference methods, including quasi-experimental approaches. Experience applying data science, machine learning and statistical modelling ...

/ CRO / VISUAL DESIGN - FAST-GROWING PREMIUM CONSUMER BRAND We're partnering with an ambitious, multichannel retailer that has experienced exceptional growth and is entering the next chapter of its journey. Following significant investment across the business, they're enhancing their digital experience from the ground … looking for a UX / UI Designer to take ownership of the customer experience across their ecommerce platform. This is a rare opportunity to join at the beginning of a major transformation rather than maintain an existing product. Working alongside Creative, CRO, Product ...

doing... Taking ownership of product initiatives focused on customer acquisition and conversion Helping complete and optimise a CMS migration / project Identifying opportunities to improve website performance and customer journeys Planning and executing A / B tests and experimentation programmes Working closely … ecommerce or subscription-based products (essential) Strong experience with growth product, conversion optimisation and experimentation Hands-on experience running A / B tests , particularly around landing pages and customer journeys Experience working in an in-house product team (preferred over agency) Excellent stakeholder communication skills ...

Managing newsletter production from brief through to deployment. Working with internal stakeholders to deliver campaigns on time. Setting up and analysing A / B tests to optimise campaign performance. Monitoring campaign results and making recommendations based on performance data. Segmenting audiences and ensuring campaigns reach … experience in a CRM Executive or Email Marketing Executive role. Hands-on experience delivering mass email campaigns. Experience with A / B testing and campaign optimisation. Strong stakeholder management and communication skills. Excellent attention to detail and the ability to manage ...

Deliver the optimisation and experimentation roadmap for Identity Plus, driving improvements in conversion, engagement and retention Design, implement and analyse A / B tests end-to-end, turning insights into relevant outcomes Identify and deliver opportunities for upsell, cross-sell and churn reduction Manage … experiments Qualifications What you'll need to bring to the role & Experian Experience in CRO, optimisation or eCommerce roles Experience running A / B testing and experimentation programmes Experience using tools such as GA, Adobe or Mixpanel Experience working in agile environments ...

contribute to the technical direction of retrieval and RAG systems. This role is ideal for someone with deep hands‐on experience in search / retrieval systems, RAG pipelines, and evaluation frameworks, who is ready to operate as a senior individual contributor with growing technical leadership responsibilities. … detection) Contribute to development of evaluation datasets, gold standards, and annotation strategies. Guide and review experimental design, including offline evaluation and A / B testing, ensuring statistical rigor and validity. Contribute to responsible AI practices, including bias, fairness, and risk evaluation Apply ...

responsible for: Analysing digital marketing performance and customer journeys to identify opportunities to improve customer acquisition, engagement and conversion. Supporting A / B and multivariate testing initiatives by evaluating results, generating insights and recommending optimisation opportunities. Developing and maintaining dashboards, reports and performance … campaigns, customer journeys and online conversion performance. Strong knowledge of digital marketing metrics, web analytics and customer behaviour analysis. Experience supporting A / B testing and digital experimentation programmes. Excellent analytical and problem-solving skills, with the ability to translate data into clear ...

with automated alerting and root cause analysis that flags when KPIs move unexpectedly and why. Design, run, and interpret experiments, from A / B tests to quasi-experimental methods like difference-in-differences when randomisation not possible. Model robust, trusted data … strong instinct for data quality. A solid grasp of statistics and probability, including experiment design and interpretation (A / B and quasi‐experimental methods such as difference‐in‐differences). A working understanding of how a payments or fintech ...

made it much easier for small and medium-sized content creators to grow their web businesses in various interesting ways, automate A / B experiments and applying Gemini to deeply understand their site and generate additional content for them to monetize. We are a … Distributed Computing* Large-scale System Design* Networking* Data Storage* Security* Artificial Intelligence* Natural Language Processing* UI Design* Mobile Development* AI Pipelines* A / B Testing* Gemini* Pixel-level Analysis* Back-end Development* Front-end Development* System Monitoring* User Experience (UX) Collaboration* Product Management ...

ensures our candidates' journeys are deeply personalised, seamlessly integrated and built to scale. This is a hands-on role split roughly 60 / 40: the majority of your time will go into building, launching and optimising sophisticated multi-channel lifecycle automation (Email, Push, In-App) that drives … engagement, conversion and retention. The remainder is spent owning the data flows and integrations that power those journeys - mapping schemas, configuring APIs / webhooks and partnering with Data Engineering to keep everything in sync. If you love clean data pipelines, sophisticated growth automation and getting into the technical weeds ...

Search Retrieval team. Within this role, you’ll be working in the cross-functional team in partnership with mobile, web and machine learning / data science teams to drive the team to success. Responsibilities: As a Backend Engineer within this team, you can expect to: Work closely … programming language (e.g. Python, Scala). You have had some experience using version control such as Git, or similar. What you’ll learn: Python / Scala Scalable systems design within a modern cloud-based environment (AWS) Practising a product-oriented mindset with a ...

Experimentation Jobs is seeking a Senior Product Data Scientist in Greater London to lead the development of statistical models that significantly impact product insights and customer experience recommendations. The ideal candidate will architect … predictive models and mentor the analytics team while working closely with product managers and engineers to drive product strategy through advanced A / B testing and analysis. #J-18808-Ljbffr ...

What we’re looking for 5+ years of experience building and growing user-facing products in high-performing teams, ideally including growth work, marketplaces / platforms, or communities. Strong product sense and UX taste for multi-sided systems with creators, learners, and customers - you can see problems from multiple … sides and design for all of them. Comfortable using data, funnels, analytics, attribution, and A / B testing to shape what you build and how you iterate. Skilled at designing, measuring, and iterating experiments, and thorough in setting up growth systems “right” from ...

CAUSAL ANALYSIS You’ll work on end-to-end experimentation: from design through to recommendation. That means partnering with PMs on A / B tests, quasi-experiments, pilots, and rollout analysis; defining success metrics that connect to real business outcomes; and building measurement frameworks … / ML features. Crucially, you won’t just report what happened — you’ll articulate causal impact and make a clear call on whether to scale, iterate, or sunset. PRODUCT DISCOVERY & INSIGHT GENERATION You’ll dig into customer patterns, surface friction points, and identify opportunity spaces that aren ...

Senior Product Data Scientist / Product Data Analyst London | Outside IR35 Day Rate: £500 This is an opportunity to take ownership of a growing product analytics function within a highly digital consumer business. You'll play a key role in shaping how product … stakeholders to identify user behaviour trends, customer pain points, and product opportunities through quantitative analysis. Design, support, and evaluate experiments and A / B tests to measure product performance and impact. Deliver deep-dive analysis and actionable recommendations that support strategic product initiatives. Work closely ...

plus pension, healthcare, life assurance, etc. Engagement: Fixed term, 9 months initially with potential for longer engagement This opportunity represents a chance to join a team who represent one of the UK's very best in this space and have been recognised for it. The best … control, test and optimise campaigns to ensure they reflect best in class and will deliver on business objectives Good knowledge of A / B testing and email journey enhancement / optimisation. With the ability to utilise the data from these to improve ...

Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions … meet regulatory standards without compromising user experience. Drives engineering best practices for rapid, safe iteration on consumer products, including feature flagging, A / B testing frameworks, and progressive rollout strategies. Required Qualifications, Capabilities and Skills Formal training or certification on software engineering concepts ...

post production Identify, troubleshoot and resolve existing or newly-identified prioritised defects Write tests for all code you deliver and adhere to best practices / standards, ensuring high-quality code Take ownership of, or assist others with, bi-weekly releases and associated processes Participate in code reviews, ensuring high … participate in some of the many skill share sessions we regularly hold in the iOS team and across the wider Engineering department. Propose / contribute / collaborate on Technical Initiatives - improving and evolving the existing codebase and toolset Be keen to ensure that we focus on solving ...

Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That’s why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions … meet regulatory standards without compromising user experience. Drives engineering best practices for rapid, safe iteration on consumer products, including feature flagging, A / B testing frameworks, and progressive rollout strategies. Required Qualifications, Capabilities and Skills Formal training or certification on software engineering concepts ...