26 to 50 of 343 A/B Testing Jobs in London

Are At Ultralytics, we relentlessly drive innovation in AI, building the world's leading YOLO models. We're looking for passionate individuals obsessed with AI, eager to make a global impact, and ready to excel in a dynamic, high-energy environment. Join our team and help shape the future of AI. 🌎 Location and Legalities This full … improve our overall digital footprint. Meticulously tracking and analyzing campaign performance through key analytics, providing actionable insights to refine our strategy and maximize ROI. Implementing rigorous A / B testing on subject lines, content, design, and calls-to-action to continuously improve engagement and conversion rates. Collaborating closely with our engineering and content … and Google Analytics . Demonstrated success in managing and scaling large email lists (100k+ subscribers) and developing complex automation workflows. Deep understanding of email marketing metrics, A / B testing methodologies, and data-driven optimization. Exceptional writing and editing skills, with a talent for making complex topics like computer vision and More ❯

implementing CRO strategy collaborating with stakeholders to drive experimentation and improvements online on our e-commerce platform. We are looking for a talented and highly motivated CRO / UX Lead to prioritize, manage, execute and optimize conversion paths. This is an opportunity to work for an in-house formalwear heritage brand. Responsibilities: Conversion Rate Optimisation Lead CRO … strategy across key website areas including checkout, PLPs, PDPs, site search, and merchandising. Design and manage a structured experimentation roadmap using A / B and multivariate testing to validate hypotheses and maximise ROI. Monitor the performance and effectiveness of testing campaigns, making data-driven recommendations. Provide in-depth KPI … Technical teams to align digital strategies with commercial goals. Present testing insights and design rationale clearly to both technical and non-technical stakeholders at all levels. Qualifications / skillset: Experience in a similar Conversion Rate Optimisation role and / or UX focused role Pragmatic self-starter with the ability to manage multiple stakeholders across More ❯

implementing CRO strategy collaborating with stakeholders to drive experimentation and improvements online on our e-commerce platform. We are looking for a talented and highly motivated CRO / UX Lead to prioritize, manage, execute and optimize conversion paths. This is an opportunity to work for an in-house formalwear heritage brand. Responsibilities: Conversion Rate Optimisation Lead CRO … strategy across key website areas including checkout, PLPs, PDPs, site search, and merchandising. Design and manage a structured experimentation roadmap using A / B and multivariate testing to validate hypotheses and maximise ROI. Monitor the performance and effectiveness of testing campaigns, making data-driven recommendations. Provide in-depth KPI … Technical teams to align digital strategies with commercial goals. Present testing insights and design rationale clearly to both technical and non-technical stakeholders at all levels. Qualifications / skillset: Experience in a similar Conversion Rate Optimisation role and / or UX focused role Pragmatic self-starter with the ability to manage multiple stakeholders across More ❯

Principal Data Scientist London, UK (Hybrid) Up to £135,000 About the Company We’re working with a next-generation private markets firm that is redefining value creation by combining deep industry expertise with advanced AI and data science. This is a unique opportunity to join a company that partners directly with portfolio companies … end ML pipeline: data exploration, feature engineering, modelling, evaluation, and deployment Collaborate with data engineers and MLOps professionals to ensure scalable, production-grade solutions Conduct rigorous A / B testing and performance measurement to validate impact Act as a technical lead within project teams, mentoring mid-level data scientists and guiding … plus Deep understanding of statistical modelling, predictive analytics, and optimisation techniques Comfortable working with cross-functional teams, including engineers, product leads, and client stakeholders Experience with A / B testing and causal inference methodologies Bachelor’s or Master’s degree in a quantitative field (e.g., Mathematics, Physics, Engineering, Computer Science) Excellent More ❯

Principal Data Scientist London, UK (Hybrid) Up to £135,000 About the Company We’re working with a next-generation private markets firm that is redefining value creation by combining deep industry expertise with advanced AI and data science. This is a unique opportunity to join a company that partners directly with portfolio companies … end ML pipeline: data exploration, feature engineering, modelling, evaluation, and deployment Collaborate with data engineers and MLOps professionals to ensure scalable, production-grade solutions Conduct rigorous A / B testing and performance measurement to validate impact Act as a technical lead within project teams, mentoring mid-level data scientists and guiding … plus Deep understanding of statistical modelling, predictive analytics, and optimisation techniques Comfortable working with cross-functional teams, including engineers, product leads, and client stakeholders Experience with A / B testing and causal inference methodologies Bachelor’s or Master’s degree in a quantitative field (e.g., Mathematics, Physics, Engineering, Computer Science) Excellent More ❯

role, you'll get to: Take ownership of high-impact ML and LLM features from ideation through to production deployment Design and run feature experimentation and A / B testing to optimise model performance and product outcomes Research, prototype, and productionise state-of-the-art LLM techniques - including fine-tuning, prompt engineering, and … don't expect perfection, but for this senior role we are looking for someone with: Strong Python skills, particularly within the data science ecosystem (Pandas, NumPy, scikit-learn, PyTorch / TensorFlow, visualisation libraries) 4+ years of experience delivering machine learning products end-to-end in production Hands-on experience with LLMs - fine-tuning, prompt engineering, vector databases, or RAG … pipelines Proven experience with A / B testing, experimentation design, or causal inference to guide product decisions Exposure to Databricks, MLflow, AWS, and PySpark (or similar technologies) is a plus Excitement about Ophelos' mission to support households and businesses in breaking the vicious debt cycle About Our Team Ophelos launched in More ❯

CRM Analyst Salary: up to £45,000 Location: West London / Hybrid (3 days per week in the office) Our Client Our client is one of the most iconic luxury brands in the world, known for crafting unforgettable customer experiences. But behind the scenes, they’re not just about elegance, they’re obsessed with data. With one of the … This isn’t just crunching numbers - this is end-to-end ownership of analytics projects that influence real-world outcomes. You’ll dive into SQL, explore A / B testing, and decode the impact of marketing across channels. No day is the same, and every insight counts. Essential Skills 1–3 years’ experience … in customer, loyalty, or CRM analytics Confident using SQL, Excel and translating data into stakeholder-friendly insights Familiarity with A / B testing, control groups, and campaign measurement Strong commercial instinct and curiosity to uncover what really drives performance Clear communicator with a knack for storytelling through data Benefits up to More ❯

CRM Analyst Salary: up to £45,000 Location: West London / Hybrid (3 days per week in the office) Our Client Our client is one of the most iconic luxury brands in the world, known for crafting unforgettable customer experiences. But behind the scenes, they’re not just about elegance, they’re obsessed with data. With one of the … This isn’t just crunching numbers - this is end-to-end ownership of analytics projects that influence real-world outcomes. You’ll dive into SQL, explore A / B testing, and decode the impact of marketing across channels. No day is the same, and every insight counts. Essential Skills 1–3 years’ experience … in customer, loyalty, or CRM analytics Confident using SQL, Excel and translating data into stakeholder-friendly insights Familiarity with A / B testing, control groups, and campaign measurement Strong commercial instinct and curiosity to uncover what really drives performance Clear communicator with a knack for storytelling through data Benefits up to More ❯

New York, London, Amsterdam and São Paulo. ZBD is a fully remote company. We hire, retain and develop the best talent from around the world, wherever s / he / they may choose to live. As a result, every member of the ZBD team must demonstrate an ability to work independently and thrive in … to a full personal finance experience Drive end-to-end feature development - from discovery and spec writing to QA, release, and post-launch iteration Manage App Store / Play Store submissions, including ASO, metadata, release timelines, and compliance Troubleshoot reward fulfillment issues and coordinate resolution of offerwall bugs, postback errors, and partner escalations Act as a … Business Development to evaluate and integrate embedded finance partnerships (e.g. card offers, stored value, financial products), aligning with monetization strategy Optimize conversion, engagement, and retention through A / B testing, funnel analysis, and gamification Work closely with Ad Ops to improve offerwall performance, trust, and fraud resistance Define product KPIs and partner with More ❯

About Flash Pack: When was the last time you made a new friend? Friendship profoundly improves our emotional wellbeing, sense of belonging, purpose and happiness. Everyone wants more human connection but making new friends is really hard. That's why we exist, with a mission to create one million meaningful friendships across the globe, using the … processes to designing features that deliver value to our community. If you measure success by customer impact rather than lines of code, you enjoy experimenting through A / B tests to validate ideas, and you get a kick out of watching users interact with something you shipped then this could be the role … and data insights, and collaborating with Product & Design to craft meaningful features that address users' challenges Supporting product decisions through iterative development and lightweight experimentation, including A / B testing when useful Instrumenting analytics and event tracking so we can continually learn about our customers and improve their experience What we'd love More ❯

About ZAVA We're on a mission to provide our patients with accessible and dependable healthcare at a fraction of today's cost. Our team of Doctors, Engineers, Customer Support Advisors, Marketers, Product Managers, UX Designers, Pharmacists, and Commercial and Operations Specialists works collaboratively to develop and maintain a digital healthcare platform that suits … business to grow by focusing on good patient outcomes. Collaborating with other team members to better understand user behaviour through experimentation and testing. Provide support on A / B and multivariate testing and other best-practice analytical techniques during the feature development process. Identifying tracking requirements to enable accurate reporting / measurement. … from across the business. Attention to detail - being able to identify anomalies in the data and spot trends before anyone else. Proven experience working with web tracking tools (Segment / Google Analytics). Nice to have, but not at all essential: Experience in the healthcare industry, or a tech company A / B More ❯

Ready for a challenge? Then Just Eat might be the place for you. We're a leading global online food delivery platform, and our vision is to empower everyday convenience. Whether it's a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of … dashboards for real-time insights into UKI revenue, pricing, and promotional effectiveness. Establish and refine predictive models to anticipate UKI market trends and customer behavior. Leverage A / B testing and experimentation frameworks to assess the impact of UKI commercial initiatives and optimize investments. Stakeholder Engagement & Leadership Act as the strategic analytics partner … with BI platforms such as Tableau or Power BI. Strong understanding of data science applications in commercial strategy, including predictive modeling and machine learning. Familiarity with A / B testing methodologies and experimentation frameworks. Here is our offer Here at JET, we offer our colleagues the chance to develop and grow alongside top More ❯

Senior Product Analyst – Data-led, Product-first, Impact-heavy London (Hybrid – 3 days in office) 💼 Join a global online trading & investing platform with millions of users, listed on the LSE and powered by data, tech, and high-performing product teams. This is your chance to get stuck into product analytics at scale – using data to improve user journeys … markets. 🧠 What you’ll be doing: 🔎 Owning end-to-end product analysis – from behavioural insights to performance metrics 📈 Driving product improvements based on user data and A / B testing 🤝 Working closely with Engineers, PMs, and cross-functional teams to deliver measurable impact 📊 Building dashboards, running cohort analysis, interpreting usage patterns – you’ll … or R for deep analysis ✔ Comfortable with tools like GA, Content Square, Appsflyer, Firebase ✔ Visualisation experience (Tableau or Looker) ✔ Comfortable implementing tracking via Google Tag Manager ✔ A / B testing pro with a good eye for trends and anomalies ✔ Clear communicator who can turn data into action 🌀 The vibe: A More ❯

Senior Product Analyst – Data-led, Product-first, Impact-heavy London (Hybrid – 3 days in office) 💼 Join a global online trading & investing platform with millions of users, listed on the LSE and powered by data, tech, and high-performing product teams. This is your chance to get stuck into product analytics at scale – using data to improve user journeys … markets. 🧠 What you’ll be doing: 🔎 Owning end-to-end product analysis – from behavioural insights to performance metrics 📈 Driving product improvements based on user data and A / B testing 🤝 Working closely with Engineers, PMs, and cross-functional teams to deliver measurable impact 📊 Building dashboards, running cohort analysis, interpreting usage patterns – you’ll … or R for deep analysis ✔ Comfortable with tools like GA, Content Square, Appsflyer, Firebase ✔ Visualisation experience (Tableau or Looker) ✔ Comfortable implementing tracking via Google Tag Manager ✔ A / B testing pro with a good eye for trends and anomalies ✔ Clear communicator who can turn data into action 🌀 The vibe: A More ❯

EU team. As a critical leader on the GFPA team, you'll manage a local team of tech pros (mainly BIEs) supporting our internal EU / UK customers, with support from our Global (NA-based) team of Data Engineers, BIEs, and product / program managers. You'll develop and lead new technical solutions and … priorities - Lead your local team, and partner with the WW GFPA team and other tech teams to engineer analytic products to meet customer needs - Lead a Data / Analytics Monthly Business Review (MBR) - Track performance metrics for your team - Communicate with and support various internal stakeholders and external audiences - Work with AWS products including Redshift, Airflow, QuickSight … building the safest, most efficient, and most sustainable fleet in the world. GFP Analytics is a growing and dynamic team dedicated to the curation, governance, and analytics / reporting of data about our worldwide fleet of delivery vehicles, especially data related to managing the supply chain and ongoing operation of the fleet. We have two sub-teams More ❯

friendly interface. Identifying opportunities for digital optimization and contribute to the continuous improvement roadmap to enhance performance and user experience. Lead market-specific continuous improvement and A / B testing initiatives, collaborating with the global CRO team to implement effective strategies. Delivering monthly cascades with insights and learnings to UK market. Working alongside … the customer experience through digital channels. Ecommerce training or operations background. Strong understanding of digital customer journeys, segmentation, personalization techniques, omni-channel strategies, and familiarity with A / B testing methodologies. Experience with app management, loyalty, in-restaurant ordering systems, booking platforms would be advantageous. Ability to analyze data, identify trends, and develop … other locations from time to time. There will be events throughout the year that will take place in London including (but not limited to) RSC days, Functional team meetings / 121s and supporting with market visits. Beware of fake job postings using Yum! and / or our brand logos KFC, Pizza Hut, Taco Bell and Habit Burger & Grill More ❯

Hours: Monday to Friday, 09:00 to 17:30 (no weekends) Location: SW1, London ( hybrid working model, 3 days in office per week) Overview Foundever and Intuit for a motivated and experienced Data Analyst to join our Customer Success team on a 6-month contractual basis. In this role, your primary responsibility will be to maintain … SQL and Python to query databases, perform data manipulation, and automate analysis processes. Support experimentation efforts of our Growth & Retention organization by analysing and reporting on A / B testing results. Provide historical data for key metrics to help establish baseline performance and experiment targets. Work closely with Customer Success, Sales, and Marketing … SQL (essential) A high level of proficiency in SQL and experience building dashboards in Tableau, Qliksense, or similar tools. Experience with ETL processes and A / B testing methodologies. Familiarity with call centre data and key industry metrics. Understanding of web data and digital support tools. Strong problem-solving skills and More ❯

Hours: Monday to Friday, 09:00 to 17:30 (no weekends) Location: SW1, London ( hybrid working model, 3 days in office per week) Overview Foundever and Intuit for a motivated and experienced Data Analyst to join our Customer Success team on a 6-month contractual basis. In this role, your primary responsibility will be to maintain … SQL and Python to query databases, perform data manipulation, and automate analysis processes. Support experimentation efforts of our Growth & Retention organization by analysing and reporting on A / B testing results. Provide historical data for key metrics to help establish baseline performance and experiment targets. Work closely with Customer Success, Sales, and Marketing … SQL (essential) A high level of proficiency in SQL and experience building dashboards in Tableau, Qliksense, or similar tools. Experience with ETL processes and A / B testing methodologies. Familiarity with call centre data and key industry metrics. Understanding of web data and digital support tools. Strong problem-solving skills and More ❯

THE ALLSAINTS TEAM At AllSaints we are in the business of feelings - making our customers feel cool and confident. If, like us, you believe in the power of a great outfit, we'd love to talk to you. We're a global brand made up of a very diverse mix of talented people in … seamless user experience. Your responsibilities in this area include: Website Optimization: Identifying areas of improvement in site speed, navigation, search functionality, checkout processes, and mobile responsiveness A / B Testing and Conversion Rate Optimization (CRO): Collaborating with developers to test different UI / UX changes (such as CTA placements, page layouts, or … help. WHAT SKILLS DO I NEED? Strong experience in ecommerce, preferably in a retail or B2C environment A good understanding of digital shopper journeys - UX / UI desirable A good understanding of prioritisation and impact of changes in an e-commerce environment Knowledge of an ecommerce platform - ideally Salesforce Commerce Cloud More ❯

in SFMC-planning, building, testing, deploying, and optimising. Build and manage automated journeys using Journey Builder to support acquisition, engagement, reactivation, and retention. Leverage A / B testing and dynamic content to improve relevance, engagement, and results. Ensure campaign delivery is accurate, timely, and aligned with UK&I brand and compliance … Journey Builder, Email Studio, and Automation Studio). Proven ability to build and optimise dual-audience journeys at scale. Expertise in segmentation, personalisation, dynamic content, and A / B testing. Ability to handle large datasets to drive meaningful customer journeys. Commercial acumen and ability to translate CRM activity into business value. Strong stakeholder management and … ability to collaborate in a fast-paced, matrixed environment. Working knowledge of HTML / CSS and familiarity with GDPR. What you will get in return This is a truly unique opportunity to work in the strategic function of the Hays group business and collaborate with senior leaders to help shape tomorrow together. In addition, Hays More ❯

in SFMC-planning, building, testing, deploying, and optimising. Build and manage automated journeys using Journey Builder to support acquisition, engagement, reactivation, and retention. Leverage A / B testing and dynamic content to improve relevance, engagement, and results. Ensure campaign delivery is accurate, timely, and aligned with UK&I brand and compliance … Journey Builder, Email Studio, and Automation Studio). Proven ability to build and optimise dual-audience journeys at scale. Expertise in segmentation, personalisation, dynamic content, and A / B testing. Ability to handle large datasets to drive meaningful customer journeys. Commercial acumen and ability to translate CRM activity into business value. Strong stakeholder management and … ability to collaborate in a fast-paced, matrixed environment. Working knowledge of HTML / CSS and familiarity with GDPR. What you will get in return This is a truly unique opportunity to work in the strategic function of the Hays group business and collaborate with senior leaders to help shape tomorrow together. In addition, Hays More ❯

emerging digital trends and technologies. Website Management: Manage and oversee daily operations of the websites, ensuring optimal performance, functionality, and user experience. Collaborate with designers to enhance website UX / UI and resolve technical issues. Work with the SEO executive to implement SEO best practices to improve organic search visibility and traffic. Digital Marketing & Optimization: Work closely with the … with the Digital Marketing Manager to develop and execute effective online marketing campaigns (PPC, social media, email marketing, etc.). Monitor and optimize conversion rates through A / B testing and performance analysis. Manage product listings, promotions, and content updates in alignment with seasonal trends and business goals. Design and send newsletters to … Google Analytics, Google Search Console, and other SEO tools. Experience with digital marketing strategies, including PPC, SEO, email marketing, and affiliate marketing. In-depth understanding of A / B testing, Personalisation and CRM tools Strong project management skills with the ability to prioritize and multitask. Excellent analytical and problem-solving abilities. Strong understanding More ❯

privacy compliance efforts including cookie control, GDPR adherence, and customer data handling best practices. Manage and review third-party digital analytics audits as required. Qualifications: Strong proficiency in JavaScript / TypeScript and hands-on experience with Next.js. Proven ability to implement custom analytics tracking within production codebases. Experience with Meta tracking (Pixel, CAPI) for both online and offline events. … and Playwright. Knowledge of data model governance and event schema best practices. xperience using GA4 and Content Square. Familiarity with Ometria and Global-e. Exposure to A / B testing and experimentation platforms. Experience with consent management tools (e.g. OneTrust). Background in e-commerce, particularly within fashion or luxury retail. Skills: Strong … proficiency in JavaScript / TypeScript and hands-on experience with Next.js. Proven ability to implement custom analytics tracking within production codebases. Experience with Meta tracking (Pixel, CAPI) for both online and offline events. Deep understanding of Google Tag Manager (including server-side containers) and event tag configuration. Familiarity with GA4 architecture and event-based tracking methodologies. Skilled in evaluating More ❯

privacy compliance efforts including cookie control, GDPR adherence, and customer data handling best practices. Manage and review third-party digital analytics audits as required. Qualifications: Strong proficiency in JavaScript / TypeScript and hands-on experience with Next.js. Proven ability to implement custom analytics tracking within production codebases. Experience with Meta tracking (Pixel, CAPI) for both online and offline events. … and Playwright. Knowledge of data model governance and event schema best practices. xperience using GA4 and Content Square. Familiarity with Ometria and Global-e. Exposure to A / B testing and experimentation platforms. Experience with consent management tools (e.g. OneTrust). Background in e-commerce, particularly within fashion or luxury retail. Skills: Strong … proficiency in JavaScript / TypeScript and hands-on experience with Next.js. Proven ability to implement custom analytics tracking within production codebases. Experience with Meta tracking (Pixel, CAPI) for both online and offline events. Deep understanding of Google Tag Manager (including server-side containers) and event tag configuration. Familiarity with GA4 architecture and event-based tracking methodologies. Skilled in evaluating More ❯

will build strong media relationships by creating tailored media lists and pitching to relevant journalists. You'll understand how to create convincing email pitches and use A / B tests to refine strategies. Digital PR execs will understand how their work contributes to SEO and brand goals and will also get to contribute creatively by … other Digital PR materials to effectively communicate key campaign messages and build links and coverage for your clients Manage the press office for our clients, including proactively sourcing reactive / newsjacking opportunities for your accounts Monitor industry media coverage daily, providing insights on trends and competitor activities Have a strong understanding of your clients as well as … journalists and media contacts to secure ongoing coverage Demonstrate a strong understanding of effective link-building, email pitching techniques and media database tools Effectively A / B test email templates to understand what is and isn't driving success Consistently deliver campaign coverage across multiple sectors, in line with your personal KPIs Contribute More ❯