1 to 25 of 147 Permanent A/B Testing Jobs in London

side marketplace (the traveler, the property owners and the platform), this team develops and optimizesranking models with state-of-the-art machine learning / genAItechniques topowerlodgingsearchand personalizedlodging ranking / recommendations for the multiple brands and lines of business in our portfolio. In this role, your expertise and passion … applied scientist role: your models will be deployed to our productionsystems,and your results will be measured objectively via A / B testing, directly impacting our business results. We collaborate closely with the analytics, product, andengineeringteams. In this role, you will: Develop, implement ...

this role, you will partner with cross-functional teams to contribute to many aspects of product development, including understanding user behavior, A / B experimentation, and problem-solving using statistics and causal inference techniques.In this role, you will:Develop and deploy advanced machine learning models … solve complex business challenges and drive data-informed decision making.Design and lead complex A / B and causal experiments to measure the impact of localization changes on traveler engagement and booking conversion; own the experimentation framework for the Localization product areaTranslate complex multilingual data insights ...

ensuring the team has the clarity and space to deliver with confidence. Our ways of working are rooted in data – A / B testing and data‐driven decision making are central to how we validate and iterate on everything we build … fostering a culture of thoughtful engineering and continuous improvement Drive a data‐driven approach to delivery, embedding A / B testing, experimentation, and insight‐led decision making into the team's everyday ways of working Manage a ...

data science teams toward measurable outcomes. Lead end-to-end product execution, from discovery and experimentation through launch and optimization, using A / B testing, experimentation frameworks, and analytics to validate hypotheses and drive decision making. Collaborate closely with design, engineering, analytics, marketing … room shopping funnel, including inventory presentation, pricing clarity, and booking confidence. Demonstrate familiarity with AI‐driven systems, tools, or workflows and applying AI / ML concepts to real world products, safely integrating and operating AI / ML enabled solutions that improve customer and business outcomes in the room ...

side marketplace (the traveler, the property owners and the platform), this team develops and optimizesranking modules with state-of-the-art machine learning / genAI techniques to power lodgingsearch and personalized lodging ranking / recommendations for the multiple brands and lines of business in our portfolio. In this … applied scientist role: your models will be deployed to our production systems, and your results will be measured objectively via A / B testing, directly impacting our business results. We collaborate closely with the analytics, product, and engineering teams. In this role ...

this role, you will partner with cross-functional teams to contribute to many aspects of product development, including understanding user behavior, A / B experimentation, and problem-solving using statistics and causal inference techniques. In this role, you will: Develop and deploy advanced machine learning … models to solve complex business challenges and drive data-informed decision making. Design and lead complex A / B and causal experiments to measure the impact of localization changes on traveler engagement and booking conversion; own the experimentation framework for the Localization product area Translate ...

technically strong. We have production ML models in fraud detection, text moderation, and taxonomy classification, running on SageMaker with a dbt / Snowflake data stack. But we're operating reactively, and we know there's significantly more value DS can unlock across the marketplace. You’ll have … Leadership Ship ML products that drive measurable business impact – not just models, but outcomes Establish experimentation as a discipline: A / B testing infrastructure, causal inference, automated experimentation for optimisations Build foundational DS infrastructure: feature store, model governance, monitoring, CI / ...

pages, quiz funnels, listicles, advertorials, and offer pages Build and launch landing pages end-to-end — concept, copy, structure, and build (page builders and / or working with dev), matched to traffic source and ad angle Run a continuous testing program — hypothesis backlog, A … / B and multivariate tests, post-test analysis, and a documented library of learnings Fix message-match — ensure the story a visitor clicks on is the story the page tells, segmented by traffic type (pre-sold vs. curiosity / tease, cold vs. ...

discovery and conversion at scale. Lead data science and experimentation. Own predictive modeling, causal inference, and the experimentation platform and standards — A / B testing, guardrail metrics, and rigorous measurement of incremental business impact — as a decision-science partner to Product … driven experiences as this work scales. Grow, develop, and retain the team . Shape ML and data-science career ladders and dual technical / management tracks; partner with Talent Acquisition to attract and hire top-tier ML and data-science talent; calibrate hiring and promotions; establish standards ...

this role, you will partner with cross-functional teams to contribute to many aspects of product development, including understanding user behavior, A / B experimentation, and problem-solving using statistics and causal inference techniques. In this role, you will: Develop and deploy advanced machine learning … models to solve complex business challenges and drive data-informed decision making. Design and lead complex A / B and causal experiments to measure the impact of localization changes on traveler engagement and booking conversion; own the experimentation framework for the Localization product area. Translate ...

management approval for key projects and investments Lead the planning and execution of a structured website experimentation programme, including A / B testing and UX optimisation initiatives Leverage analytics tools to track website performance, user behaviour, and engagement metrics, and implement … continuous optimisation strategies Drive SEO / GEO improvements focused on priority topics to enhance visibility, search rankings, and overall discoverability across all language versions Maintain compliance with legal, regulatory, and accessibility requirements, including GDPR and any other relevant regulations Lead the central website team (2 direct reports) responsible ...

Product Design Lead - UX / UI London / Hybrid (3 Days Onsite / 2 Days WFH) £80,000 - £85,000 A leading international telecoms organisation is looking for a Product Design Lead to help shape its digital customer experience across five European markets. … This is a hands-on Product Design role with a strong focus on stakeholder management. You'll lead UX / UI initiatives while working closely with Product, Technology and local market teams to ensure a consistent approach across the business. Key Responsibilities: Lead ...

data science teams toward measurable outcomes. Lead end-to-end product execution, from discovery and experimentation through launch and optimization, using A / B testing, experimentation frameworks, and analytics to validate hypotheses and drive decision making. Collaborate closely with design, engineering, analytics, marketing … room shopping funnel, including inventory presentation, pricing clarity, and booking confidence. Demonstrate familiarity with AI-driven systems, tools, or workflows and applying AI / ML concepts to real world products, safely integrating and operating AI / ML enabled solutions that improve customer and business outcomes in the room ...

Your new company A high-growth consumer brand with an ambitious international growth strategy is seeking a Senior UX / UI Designer to join its expanding digital team. Operating in both the UK and US markets, the business has built a loyal customer … landing pages, improve key ecommerce journeys and develop a scalable design system that supports rapid experimentation. Key responsibilities include: Owning the UX / UI experience across multiple Shopify stores Improving conversion rates through data-led design decisions Building and managing an A / B ...

sectors including retail, technology, logistics, healthcare, and more, aiming to transform traditional business models with cutting-edge digital solutions. Know more about us: https: / / corporate.jd.com / JD.com is seeking an experienced Technical Product Operations Manager to join our growing technical team at Joybuy (https: / / www.joybuy.com / ). Joybuy is JD.com’s European full-category online retail brand designed to bring customers a faster, more convenient, and cost-effective shopping experience. Offering same-day and next-day delivery across the UK, Joybuy combines speed, reliability, and affordability to meet ...

before campaigns go live Manage campaign schedules, priorities and deadlines across a busy delivery calendar Support campaign optimisation through A / B testing and continuous improvement Identify and resolve campaign build or delivery issues Martech Stack Youll work with a … apply an overlay of lifecycle marketing to these - You have experience of working with dynamic content and personalisation - Good knowledge of A / B testing and email journey enhancement / optimisation. With the ability to utilise the data from these to improve ...

e.g., NDCG, recall, precision) LLM and RAG evaluation methodologies Grounding and faithfulness evaluation Human evaluation and annotation strategies Online experimentation and A / B testing Establish best practices for offline benchmarking, online experimentation, and reproducible evaluation workflows. Build scalable processes for benchmark creation … systems. Information retrieval and semantic search Retrieval-augmented generation (RAG) Evaluation methodologies for IR and generative AI systems Experimentation frameworks and A / B testing Strong experience with: Vector retrieval and hybrid search architectures. LLM evaluation and AI quality measurement Embeddings, reranking ...

sectors including retail, technology, logistics, healthcare, and more, aiming to transform traditional business models with cutting-edge digital solutions. Know more about us: https: / / corporate.jd.com / JD.com is seeking an experienced Technical Product Manager - Supply Chain to join our growing technical team at Joybuy (https … / / www.joybuy.com / ). Joybuy is JD.com’s European full-category online retail brand designed to bring customers a faster, more convenient, and cost-effective shopping experience. Offering same-day and next-day delivery across the UK, Joybuy combines speed, reliability, and affordability ...

processes using CircleCI with GitHub and Maven. Integrate Contentful and ElasticPath as content and commerce engines, respectively. Use Optimizely to run A / B testing on built features. Core Competencies Demonstrates expertise in building scalable back‐end services and APIs using Java … Hard Skills Java Spring Boot React TypeScript Node.js Next.js SCSS Jest Cypress Maven Industry Keywords API Development Microservices Architecture Continuous Deployment A / B Testing Web Application Development Tools & Technologies CircleCI GitHub Contentful ElasticPath Optimizely #J-18808-Ljbffr ...

pays, who responds to which voice, script or offer — turned into live segments the agents act on. Optimise with experiments. A / B tests and bandits over timing, cadence, voice and negotiation policy; find what lifts recovery, and ship it fast. Own business-level outcomes. … a real production codebase — you take a model from idea to production and monitor it. We use Python for ML / AI services and TypeScript around it, on AWS and PostgreSQL. Statistics you can defend. Experimental design, causal inference, measuring the real effect ...

Opportunity Join a collaborative team where analytics directly influences commercial performance and revenue growth. Take ownership of reporting, A / B testing and yield optimisation across a sophisticated programmatic ecosystem. Work with leading ad technology platforms, gaining exposure … where curiosity, initiative and new ideas are valued. Responsibilities Produce and analyse programmatic revenue reports, identifying trends and commercial opportunities. Manage A / B testing from setup through to analysis and recommendations. Support the optimisation of programmatic revenue across multiple supply partners ...

that help improve our clients’ bottom line. Specifically, helping them reach high-quality audiences online, making media budgets more efficient, running A / B testing and AI experiments, to help increase conversion rates, deliver more Sales and improve ROAS. 🛠 What … North America. Familiarity with SEO and other non-paid for strategies and how they interact with Paid Media executions. Exposure to A / B testing or automation tools (e.g., ad copy tests, bid strategies, scripts, bulk workflows) to enhance optimisation and efficiency. ...

. What you'll be doing Own the experimentation roadmap and CRO strategy across the full customer journey Design and run A / B tests across email, website, and direct marketing channels Identify customer pain points and define optimisation opportunities Work with UX, engineering … continuous optimisation Drive a culture of data-driven experimentation across the business What you bring Must-haves Strong experience working in CRO / experimentation / optimisation roles Proven experience owning an experimentation roadmap (not just contributing) Hands-on experience running A / B ...

risks; take ownership of ambiguous problems and drive them from question to conclusion. Own experimentation & statistical rigour : Design and interpret A / B tests and experiments, and apply sound statistical and causal-inference methods so that decisions rest on trustworthy evidence. Define success metrics : Work … analyst, who takes on their ongoing development and maintenance. Mentorship & standards : Act as a technical mentor to analysts, conducting code reviews (SQL / Python) and establishing best practices for analysis, data visualisation, and reporting. What we would like to see from you 6+ years of experience ...

delivering complex, cross-functional product initiatives from concept to launch at scale Strong analytical and data-driven mindset, comfortable with SQL, A / B testing, and quantitative analysis Excellent stakeholder management and communication skills, with the ability to navigate a matrix … organisation across multiple time zones Fluent in English. ATS Optimization Keywords product management supply chain operations logistics data analysis SQL A / B testing quantitative analysis product lifecycle management success metrics definition continuous optimisation Soft Skills stakeholder management communication analytical mindset cross-functional ...