1 to 25 of 297 A/B Testing Jobs

Senior Python Developer - Microservices

Hiring Organisation
Lyst
Location
London, United Kingdom
Salary
£ 80 K
a python environment. You will ideally have plenty of experience using; Python, postgresql, jenkins, circleci, aws, redshift, redis, django, rest framework...Docker (http: / / developers.lyst.com / devops / 2014 / 12 / 08 / docker)Microservices architecture (HTTP)TDD - We love … people who are passionate about what they do:50 engineers and data scientists 5M duplicated products detected and merged using product image features (http: / / www.slideshare.net / ejlbell / fashion-productdeduplication)300k online recommendation model updates per day (http: / / developers.lyst.com / ...

Software Development Engineer II - Personalistion - London, United Kingdom of Great Britain and Northern Ireland

Hiring Organisation
Tesco
Location
London, United Kingdom
Salary
£ 80 K
followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave. Free 24 / 7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your … shortened summary, refer to our policies for full detailsYou will be responsible for: Building low-latency, high-throughput services for personalisationDeveloping Java / Spring Boot microservices with REST / gRPC APIsWorking with Kafka and event-driven architecturesBuilding pipelines using Apache Flink and Apache BeamIntegrating ML models and feature ...

Python Developer

Hiring Organisation
Lyst
Location
London, United Kingdom
Salary
£ 80 K
data scientists with plans to double the team size in the next 6 months.5M duplicated products detected and merged using product image features (http: / / www.slideshare.net / ejlbell / fashion-productdeduplication)300k online recommendation model updates per day (http: / / developers.lyst.com / data / 2014 / 11 / 11 / word-embeddings-for-fashion / )72k crowd-sourced labels generated per day40k product gender classifications per day via deep learning500k recommended products per day120 EC2, 8 RDS, 7 ElastiCache and 10 Redshift instancesour internal analytics system ...

CRM Designer

Hiring Organisation
T&P
Location
London, United Kingdom
Salary
£ 60 K
This role requires a solid understanding of design principles, brand guidelines, and responsive email design. You are curious about A / B testing and design performance, and you are keen to leverage the full capabilities of WPP Open and Figma … performance data into visually appealing ideas, demonstrating a growing understanding of The Sun’s audience and what drives their engagement.A / B Testing Support: Collaborate with the marketing team to explore different visual styles and approaches to support A / ...

Sr. Performance Marketing Mgr, Veeqo

Hiring Organisation
Amazon
Location
Swansea, Neath Port Talbot, Wales, United Kingdom
Employment Type
Permanent
important the candidate can foster a creative team environment, inventing new approaches to ad creative and targeting, building robust A / B testing structures, diving deep into campaign performance data, and doubling down on what's performing. Key job responsibilities … Lead marketing automation and audience strategy implementation to drive program efficiency and improve lead quality. - Establish rigorous testing frameworks (A / B, incrementality, geo-lift) and optimization processes. Develop metrics and measurement to determine campaign effectiveness and true incremental impact. - Lead budget planning ...

CRO Manager

Hiring Organisation
Dentsu
Location
London, United Kingdom
Salary
£ 80 K
Pets at Home, People’s Postcode Lottery, Jurys Inn and more. Whether you have a background in CRO and A / B testing, User Research, UX Design, Ecommerce trading, Digital Marketing or Data analysis, if you want to gain experience working … Review your teams client strategies, ensuring they align with long-term client objectives. These can include but are not limited to A / B testing, a page / journey redesigns, optimisation of the acquisition journey and site speed optimisation. ...

CRO Manager

Hiring Organisation
Dentsu
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 70 K
Pets at Home, People’s Postcode Lottery, Jurys Inn and more. Whether you have a background in CRO and A / B testing, User Research, UX Design, Ecommerce trading, Digital Marketing or Data analysis, if you want to gain experience working … Review your teams client strategies, ensuring they align with long-term client objectives. These can include but are not limited to A / B testing, a page / journey redesigns, optimisation of the acquisition journey and site speed optimisation. ...

Senior FX Product Manager - Hedging Conversion

Hiring Organisation
ebury
Location
London, United Kingdom
Salary
£ 80 K
every monthStatements, notifications and review moments that build the habit and prove the value after the factExperimentation & MeasurementA cadence of A / B tests across the journey, not a feature backlogReading results honestly, including the ones that kill your own ideasBuilding the measurement … conversion, adoption or engagement outcomes end-to-endStrong analytics and experimentation skills — funnel analysis, cohort and retention analysis, designing and interpreting A / B testsExperience designing lifecycle journeys or triggered workflows, and the messaging that carries themFluent English (daily collaboration with global commercial, tech ...

Data Scientist

Hiring Organisation
Tripledot Studios
Location
London, United Kingdom
Salary
£ 60 K
with platform outputs, investigating discrepancies, and validating features and metrics. This offers the opportunity to develop deep expertise in experimentation and A / B testing across a sophisticated internal platform. As the platform evolves, the role will expand into more advanced … automate QA processes and improve the efficiency and quality of validation.Build a deep understanding of experimentation methodologies, including A / B testing, monitoring, segmentation, and analysis.Collaborate with BI, Machine Learning, product teams, and other stakeholders to understand requests and shape effective ...

Optimisation Manager

Hiring Organisation
VML
Location
London, United Kingdom
Salary
£ 70 K
hands-on execution and QA of the weekly site optimisation roadmap, ensuring rapid deployment and zero-defect delivery of experiments and content updates.A / B Testing & Personalisation: Build, launch, and monitor A / B tests, multivariate tests, and personalisation campaigns … obsessed with conversion rate optimization (CRO) and real-time performance.Technical Skills & ExperienceSite Optimisation Platforms: Proven hands-on experience using optimization and A / B testing software (e.g., Optimizely, VWO, Adobe Target, Siteimprove, or similar meta-optimisation tools).Analytics Suites: Proficient in setting ...

UX Visual Designer, Amazon Advertising - Brand Innovation Lab

Hiring Organisation
Amazon
Location
London, United Kingdom
Salary
£ 70 K
Managers, and Account Teams to transform concepts into compelling customer experiences.The ideal candidate combines strong UX fundamentals with hands-on experience using no-code / low-code web development tools such as Webflow, and possesses a foundational understanding of front-end technologies and basic web development.Key … responsive digital experiences. Collaborate with cross-functional teams to define customer journeys and optimize performances and engagement. Plan, execute, and analyze A / B tests to improve user experience and campaign performance. Conduct user research and usability testing to validate design decisions ...

Senior Decision Scientist

Hiring Organisation
MPB
Location
Brighton, East Sussex, United Kingdom
Salary
£ 70 K
improve the customer experience.Build product features and data products. Develop production-ready, data-driven features that customers interact with.Experimentation rigour. Lead A / B tests, holdouts, sample sizing, and post-test analysis to support confident decisions.Own certified metrics and the semantic layer for your squad … Practice and help raise data and AI fluency across MPBRecent projects in the team have included:A recommendations engine and associated experimentation / A / B testingNatural language search over catalog and content, using LLMs / SLMsVision-based image analysis ...

Data Analyst, Product

Hiring Organisation
Kraken
Location
United Kingdom
Salary
£ 70 K
metric frameworks for the Pro product team. You'll define north star metrics from the ground up, drive experimentation infrastructure through A / B testing and causal inference, and translate results into clear product recommendations. We're actively building a culture … production pipelines to full-funnel reporting that powers cross-functional teams.Lead experimentation across the Product domain by designing and owning A / B testing frameworks, applying causal inference techniques and turning results into clear, confident recommendations that influence product strategy.Influence technical direction across ...

AI-Led Product Researcher & Designer

Hiring Organisation
SS&C Technologies
Location
London, United Kingdom
Salary
£ 70 K
establish best practice and raising the bar for user-centred product development.Collaborate with Product Analytics to design and interpret, amongst others, A / B and multivariate tests that measure the impact of features and user experiences.Design LeadershipLead end-to-end Product Design across our Digital … ExperimentationWork closely with Product Managers, Designers, and Engineers to introduce and scale AI-assisted experimentation practices across our products.Design and support A / B and concept tests to validate hypotheses and measure the impact of design and feature changes.Help define and monitor metrics such ...

Senior Data Scientist, Analytics

Hiring Organisation
Expedia
Location
London, United Kingdom
Salary
£ 80 K
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 ...

CRO Developer

Hiring Organisation
Harnham
Location
Manchester Area, United Kingdom
experimentation capability. The Role As a CRO Developer, you will be responsible for building, implementing, and maintaining A / B tests and experiments across a range of digital products. You will work closely with analysts, marketers, designers, and stakeholders to translate … hypotheses into live experiments that drive measurable business results. Build and deploy A / B and multivariate tests using HTML, CSS, and JavaScript Develop high-quality experiment code across websites and digital platforms Work with CRO and product stakeholders to turn testing ideas ...

Machine Learning Scientist II

Hiring Organisation
Expedia
Location
London, United Kingdom
Salary
£ 70 K
side marketplace (the traveler, the property owners and the platform), this team develops and optimizes ranking models with state-of-the-art machine learning / genAI techniques to power lodging search and personalized lodging ranking / recommendations for the multiple brands and lines of business in our portfolio. … 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 ...

Senior Data Analyst

Hiring Organisation
On the Beach Group plc
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 45 K
define success metrics for search performance. You’ll bring data to life, challenging assumptions and driving continuous improvement through rigorous A / B testing and experimentation of search results and recommendations.As a senior member of the analytics function … search results.Creating and configuring advanced dashboards to effectively report Search KPIs (CTR, Ranking Position,Zero-Results) for decision making.Designing and interpreting A / B tests across search and personalisation, identifying what’s worth testing and making evidence-based recommendations on what the team ...

Senior Director of Machine Learning (Experiences)

Hiring Organisation
TripAdvisor
Location
London, United Kingdom
Salary
Confidential
drive 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 … agentic and LLM-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 ...

Senior Director of Machine Learning (Experiences)

Hiring Organisation
TripAdvisor
Location
Oxford, Oxfordshire, United Kingdom
Salary
Confidential
drive 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 … agentic and LLM-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 ...

Lead Product Researcher

Hiring Organisation
SS&C Technologies
Location
London, United Kingdom
Salary
£ 80 K
best practice and raising the bar for user-centred product development. Collaborate with Product Analytics to design and interpret, amongst others, A / B and multivariate tests that measure the impact of features and user experiences. Customer, Market & Competitor Insight Plan and execute … Experimentation Work closely with Product Managers, Designers, and Engineers to introduce and scale experimentation practices across our products. Design and support A / B and concept tests to validate hypotheses and measure the impact of design and feature changes. Help define and monitor metrics such ...

EMEA Website Lead

Hiring Organisation
DS SMITH PACKAGING LIMITED
Location
London, United Kingdom
Employment Type
Permanent
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 ...

Machine Learning Engineer (UK)

Hiring Organisation
Bumble
Location
London, United Kingdom
Salary
£ 100 K
LondonEngineering – Machine Learning / Employee - Regular / Permanent / HybridAt Bumble, we're building a world where all relationships are healthy and equitable, and machine learning is central to making that real for millions of people every day. As part of our Machine Learning team … deploymentApply modern ML frameworks (e.g., PyTorch or TensorFlow) to design, train, and optimise models in production environmentsContribute to experimentation frameworks, including A / B testing and offline evaluation, to iterate on model performance with an agile mindsetMaintain and monitor production models, diagnose issues ...

Senior CRM Manager - Global

Hiring Organisation
Wise
Location
Greater London, United Kingdom
Employment Type
Full Time
management, deliverability and monthly reporting. Implement the localisation process for Wise’s international campaigns Maintain and implement a clear A / B testing plan. Your Mission: As an individual contributor, you will excel in both strategic planning and hands-on execution … management, deliverability and monthly reporting. Implement the localisation process for Wise’s international campaigns Maintain and implement a clear A / B testing plan. Qualifications Senior level experience in a CRM role (5+ years), with strong focus on segmentation ...

Senior Web Engineer

Hiring Organisation
Supermetrics
Location
United Kingdom
Salary
£ 70 K
intelligent search — with AI tooling as a default part of your workflowDesign the technical foundation for experimentation at scale: A / B testing frameworks, personalisation middleware, and rapid iteration pipelinesArchitect the Sanity content infrastructure for a “Create Once, Publish … reusable blocks, and ingestion pipelinesOwn the website data layer, event architecture, and tracking standards; monitor and optimize Core Web Vitals, uptime, and technical SEO / AI visibility continuouslyProvide technical oversight of external agencies and contractors: enforcing PR standards, CI / CD pipelines, and ensuring output meets our architectural ...