151 to 175 of 276 A/B Testing Jobs in London

Paid Search Manager

Hiring Organisation
Wise
Location
Greater London, United Kingdom
Employment Type
Full Time
efficiencies. You'll proactively identify opportunities for process improvement and innovative practices. Conversion Rate Optimisation (CRO): Own the end-to-end A / B testing process across ad copy, extensions, and landing pages to constantly improve campaign efficiency and conversion rates, translating user … server-side), and measurement frameworks. Have advanced experience with bid management, automation tools, and a strong history of implementing or amending Google / Microsoft Ads Scripts (or equivalent API solutions). Are a proactive, data-driven leader able to prioritise projects based on forecasted impact ...

Design Engineer (UI, Frontend)

Location
Greater London, England, United Kingdom
work required to elevate an active component library into a mature design system. Portfolio: A portfolio demonstrating visual craft, motion / animation, interactive web projects, or design system work. UI Design Fundamentals: Solid grounding in composition, spatial layout, visual hierarchy, typography, and easing curves. Accessibility … frameworks (we use Playwright and Jest) or a willingness to learn. Exposure to web observability, monitoring tools, or A / B testing setups. Experience running automated accessibility tests (e.g., axe-core). Why else you'll love it here Wondering ...

Applied AI Security Engineer

Location
Greater London, England, United Kingdom
governed access and tooling controls Defend technical decisions under scrutiny from AI and Security peers, and document the methodology so it survives Required Qualifications / Skills Demonstrated hands-on experience applying AI / LLM models to real security testing or vulnerability research Strong software engineering ability … scripting, automation, and integration work is core to this role Experience designing and running structured technical evaluations or experiments (model comparisons, A / B testing, or equivalent) and drawing defensible conclusions from the results Comfortable operating with significant ambiguity and no established playbook ...

CRM Manager

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £50,000 per annum
This is an exciting opportunity for a CRM Manager to join a fast-paced digital entertainment business and take ownership of customer engagement. Needs to have gaming or gambling backround. You will play a key role in shaping CRM strategy, delivering data-driven campaigns … Design and implement automated customer journeys and personalised communications. Manage promotions and campaign delivery from setup through to quality assurance. Conduct A / B testing to improve engagement, retention, and conversion rates. Work closely with acquisition, compliance, product, and analytics teams to deliver ...

Head of Digital Growth M&G Job listing

Location
Greater London, England, United Kingdom
Technology, Change and Operations behind a single, shared vision. Data-driven and experimentation-led; fluent in funnels, cohorts, attribution, A / B testing and behavioural analytics; sets metrics and closes the loop. Strategic and systems-thinker who can hold the long … Proven track record of delivering measurable commercial growth (acquisition, conversion, retention, LTV) through digital channels at scale. Deep experience leading omni-channel adviser and / or customer journeys in a B2B2C model. Demonstrable success operating within a regulated environment with Consumer Duty (or equivalent) embedded ...

Senior Director, Digital Marketing

Location
Greater London, England, United Kingdom
presence and performance - from how we're discovered by AI answer engines to how we convert pipeline on the website. You'll lead SEO / GEO, Answer Engine Optimization (AEO), paid media, and web conversion strategy, building a fully AI-powered digital org that stays ahead … Overviews, Claude, Gemini, and emerging LLM platforms. Build AEO accountability frameworks: benchmark tracking, citation monitoring, share-of-voice in AI-generated answers, and input / output OKRs across contributing teams. Partner with Brand, Demand Gen, and AR teams on content and structural approaches that increase AvePoint's citation frequency ...

Principal Machine Learning Scientist (Experiences)

Location
Greater London, England, United Kingdom
coach senior and mid-level ML scientists. Foster a culture of technical excellence, driving best practices for MLOps, rigorous A / B testing, data privacy, and code quality. Skills & Experience: Education: Ph.D. or Master’s degree in Computer Science, Machine Learning … Technical Stack: Mastery of Python and deep learning frameworks (TensorFlow, PyTorch) alongside hands-on experience with distributed computing (Spark, Ray) and cloud infrastructure (AWS / GCP). Graph Neural Networks (GNNs): Strong experience applying GNNs, knowledge graphs, or graph embeddings to map complex relations between travel entities (e.g., users ...

Measurement & Effectiveness Lead

Location
Greater London, England, United Kingdom
outputs and relaying them in plain language. Measurement Expertise: Deep understanding of industry-standard research tools, clean rooms, and media effectiveness practices (e.g., brand / sales lift, attention, or A / B testing). Knowledge of attention providers (Lumen, Adelaide, RealEyes, Element … client challenges, helping to build long‐term strategic partnerships. Innovative: Bring new ideas to the Insight & Research team on effectiveness and digital measurement. Skills / Requirements Competent on Microsoft Excel and PowerPoint Proven ability to take a brief, find a solution and provide a ...

Machine Learning Engineer

Hiring Organisation
Anson Mccade
Location
Central London, London, United Kingdom
Employment Type
Permanent
world outcomes at scale. Key Responsibilities Designing, developing and optimising machine learning models across traditional ML use cases (forecasting, classification, anomaly detection) and GenAI / LLM solutions Leading experimentation cycles, including hypothesis definition, experimental design, evaluation and iteration, while complying with governance standards Transitioning validated experiments into production-ready … TensorFlow Strong experience delivering ML solutions using AWS services (e.g. SageMaker, Lambda, S3) Expertise in experiment design, including hypothesis formulation, A / B testing and statistical evaluation Proven experience moving models from experimentation into production with appropriate governance and quality controls Hands ...

Lead Product Designer, London, UK

Location
Greater London, England, United Kingdom
About Eucalyptus We're on a mission to make good health last a lifetime. More than 1 billion people live with obesity worldwide, driving preventable chronic conditions. We're here to build better long‐term care. Eucalyptus is now part of Hims & Hers, the global leader … definition and research to information architecture and UX writing. Your own research and usability testing. Validation and experimentation. You set up A / B tests and read them honestly. UX writing. In a regulated market, this is craft and compliance at once. Problem ...

UX Researcher - Global E-Commerce (UK)

Location
Greater London, England, United Kingdom
Responsibilities The e-Commerce industry has seen tremendous growth in recent years and has become a hotly contested space amongst leading Internet companies, and its future growth cannot be underestimated. With millions of loyal users globally, we believe TikTok is an ideal platform to deliver a … user experiences. Collect and analyze user behavior through user interviews, field visits, ethnography, surveys, benchmark studies, server logs, and online experiments (A / B testing). Work closely with Product, Engineering, Algorithm, and Operations teams to prioritize research opportunities in a ...

Paid Media & Performance Marketing Manager Marketing · Legends Global HQ London

Location
Greater London, England, United Kingdom
ROAS across our UK venue portfolio. Be our in-house paid media expert, managing campaign builds, audience targeting, tracking, pixels, attribution, A / B testing and optimisation, while leading the transition from agency-led activity to a best-in-class internal … delivering results against commercial KPIs with experience managing significant media budgets and driving continual optimisation. Strong technical and analytical skills, including GA4, Looker Studio / Data Studio, conversion tracking, pixels, attribution modelling, reporting dashboards and performance insights . Strong communication and relationship building skills, you will work closely with ...

AI/ML Data Scientist

Location
Greater London, England, United Kingdom
backed by impact-focused VCs and supported by partners including UCL, Innovate UK, Microsoft, and Google. The role We're looking for an AI / ML Data Scientist to join our London team. You'll work directly alongside our founders and engineers who've previously built at Meta, Atlassian … test suites that let us ship model and prompt changes with confidence, and catch regressions before students do - Run experiments and A / B tests on live AI features, and make the call on what the results actually mean - Build and curate high-quality datasets ...

Data Analyst

Location
Greater London, England, United Kingdom
perform in-depth data analysis to identify and understand anomalies. Partner with Product and Engineering teams to structure, run, and analyse A / B tests, using statistical techniques to ensure reliable findings that improve the customer experience. Design, build, test, deploy and monitor data models … improve yourself and others, using the latest technologies such as Claude Code to increase impact. Good working knowledge of BigQuery. Experience building semantic models / knowledge graphs, or a desire to learn. Experience working with event analytic platforms such as Amplitude. What ...

AI Conversion and Personalisation Specialist

Hiring Organisation
The Portfolio Group
Location
London, United Kingdom
Employment Type
Permanent
live audience definitions and targeting logic for paid media and outbound activity, moving away from manual list-based targeting. Working with Salesforce Data 360 / Data Cloud and Marketing Cloud to activate enriched audiences and intent signals. Improving conversion performance across the funnel, from landing page and nurture through … between marketing, data and technology . You may come from a background such as: Marketing Automation Growth Marketing Conversion Rate Optimisation CRM / Lifecycle Marketing Performance Marketing Personalisation Marketing Technology AI Marketing / AI Operations Demand Generation You'll ideally have experience with several ...

Experimentation Manager Contract

Location
Greater London, England, United Kingdom
manage and deliver multiple regional initiatives on time and in scope. PM Tools: Proficiency in project management tools (Jira, Asana, Trello) and methodologies (Agile / Waterfall), including dependency tracking and risk escalation. Process Discipline: Experience following and refining repeatable frameworks for experimentation setup, technical delivery, and reporting. Data-Driven … Support & Commercial Awareness Analytical Skills: Strong understanding of A / B testing principles and the ability to extract, compile, and interpret raw datasets to populate regional performance reports. Commercial Acumen: Understanding of how technical delivery and accurate experiment data translate into business value ...

Senior Backend Engineer - Revenue

Location
Greater London, England, United Kingdom
Head of Pricing to implement commercial initiatives and new pricing capabilities. Build reliable, scalable and observable systems using modern engineering practices, including CI / CD, automated testing and monitoring. Contribute to technical design, architecture discussions and peer reviews. Continuously improve the performance, scalability and resilience of revenue … backend services and REST APIs Strong SQL skills and experience working with relational databases Familiarity with AWS or similar cloud environments Experience with CI / CD pipelines and automated testing Strong understanding of software architecture, scalability and system design Excellent communication skills and the ability to explain ...

Senior Data Scientist

Location
Greater London, England, United Kingdom
partnering with one of the UK's largest digital consumer platforms to hire a Lead Data Scientist into a newly formed Data Science capability. This is a genuine greenfield opportunity to help shape how machine learning influences customer engagement, subscriptions, retention and revenue growth … prediction and retention analytics Customer segmentation and personalisation Dynamic pricing and offer optimisation Uplift modelling and causal inference Experimentation frameworks and A / B testing Model monitoring and performance optimisation You'll work closely with Product, Engineering, Editorial and Commercial teams to translate ...

Principal AI Engineer

Location
Greater London, England, United Kingdom
model deployments. Experience with agentic frameworks and autonomous agent architectures. Proficiency in Python and modern software development practices (testing, code review, CI / CD). Proven track record of delivering complex technical projects on time with high quality Desirable Advanced degree (Master's or Ph.D.) in Computer … platforms Knowledge of vector databases (Pinecone, Weaviate, Qdrant) and embedding models Experience with model serving frameworks (vLLM, TensorRT, Ray) Experience with A / B testing and experimentation frameworks for AI features Contributions to open‐source ML projects or research publications Experience with model ...

Senior Product Designer

Hiring Organisation
Solas IT Recruitment
Location
City of London, Greater London, UK
Senior Product Designer Location: Shoreditch, London Working Pattern: 4 Days Onsite / 1 Day Working from Home My client is looking for an experienced Senior Product Designer to join a growing consumer technology business, taking ownership of high-impact customer experiences across web and mobile. This … consumer-facing digital products. Strong experience within ecommerce, D2C or a comparable consumer product environment. An excellent portfolio demonstrating high-quality visual / UI design alongside strong UX and product thinking. Experience designing end-to-end customer journeys such as acquisition, onboarding, checkout, subscriptions, account management, loyalty ...

Digital Marketing Data Executive

Location
Greater London, England, United Kingdom
commercial insights and practical recommendations. Support campaign planning through audience segmentation and performance forecasting and identify new audiences using Cognism. Evaluate A / B testing and campaign experiments. Supporting the Digital Marketing team and contributing towards business development Update the firm's websites … teams to help shape where AI & innovation can create efficiencies, revenue opportunities, and scalable services for the BD team and our internal clients Skills / Experience Essential Experience & Attributes Experience in digital marketing, marketing analytics, or business intelligence. Strong analytical and problem-solving skills. Experience developing dashboards in Microsoft ...

UX Designer

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70,000
with AEO and content strategists Champion 'agent-first' UX principles across the team, from information architecture to component choice Use analytics, A / B testing, personalisation (Adobe Target) and AI citation data to validate and improve design decisions Design mobile-first across … content strategists and marketing managers to turn business and AEO requirements into intuitive user experiences What you'll bring 5+ years in Digital UX / UI design, ideally within a regulated industry (asset management, financial services, or complex B2B) Strong skills in mobile-first design, information architecture ...

Senior Data Science Manager (Experimentation)

Location
Greater London, England, United Kingdom
content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. Tripadvisor Experiences Tripadvisor Experiences is the team that builds and supports the world … making quality in a product-led organisation. Technical Expertise: Strong proficiency in SQL and Python, with deep understanding of A / B testing, statistical experimentation, causal inference, and applied experimentation frameworks. Systems Thinking: Demonstrated ability to design, diagnose, and improve ...

Business Data Analyst

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £280/day
manual workflows with a critical, data-interrogating mindset. Measure performance outcomes for digital experiences and AI-assisted support through A / B testing, statistical evaluation, and baseline monitoring. Translate complex data findings into clear, persuasive narratives for both technical … technical stakeholders to influence business strategy. Technical Toolkit: Expert proficiency in SQL for data extraction, transformation, and pipeline development. Strong proficiency with modern dashboarding / visualization tools (e.g., Tableau, Qlik). Knowledge of Python or R for advanced analytics and automation is highly desirable. Familiarity with cloud / ...

UX Design Researcher

Hiring Organisation
Eligo Recruitment
Location
London, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Sportsbook & iGaming London | Hybrid, 2 days per week in the office Up to £50,000 + 10% performance bonus We’re looking for a talented UX Designer to join a growing digital product team working across multiple consumer-facing brands, with a particular focus … casino would be highly desirable, particularly if you've worked on complex customer journeys within betting or gaming products. Experience with A / B testing would also be beneficial. What's On Offer? Salary up to £50,000 10% performance bonus Hybrid working ...