126 to 150 of 161 A/B Testing Jobs in London

Implements end-to-end features across application and data layers with growing autonomy. Designs data models for common patterns (including star / snowflake for analytics), optimizes queries, and debugs performance issues. Leverages the company Application Express and PL / SQL where appropriate; adds telemetry to track usage, conversion … applicable law. Key Responsibilities Data Systems Software Development: * Deliver end-to-end features spanning application services and the company Database data models (including star / snowflake patterns). Diagnose and improve query and API performance affecting user experience and service-level agreements. Introduce controlled experiments (A / ...

Expedia Group is seeking a Machine Learning Scientist II to join the Lodging Search Ranking AI team within the Product … Technology division. You will build and optimize ML models powering ranking and personalization for multiple brands, with production deployments and live A / B testing to measure impact. You will work with data scientists, engineers, product managers, and analysts to translate business problems ...

Snap is seeking a machine learning expert to develop ML products and AI Lenses that power millions of Snapchatters daily. You will focus on image and video generation, as well as large language models, while building AR experiences with diffusion and flow‐matching models. You will collaborate … with Product, Software Engineering, Lens Content and Data Science teams to prototype ideas, integrate models into production, and refine them through A / B testing and user feedback. #J-18808-Ljbffr ...

strategy and production-grade implementations. You will shape models for multi-objective ranking, sequential user modeling, and graph-based travel recommendations, while mentoring a … team of scientists. You will collaborate with Product, Engineering, and Data Science to deliver scalable, low-latency pipelines, driver frameworks, and A / B testing practices that optimize engagement and #J-18808-Ljbffr ...

Postgres, MySQL)NoSQL datastores (e.g. DynamoDB)Stream processing (e.g. Kafka)Experience building scalable web applications serving 10,000s of requests per secondDevOps culture (CI / CD pipeline)Ability to proactively find and solve complex problems independently, but also know when to seek guidance or help from peersProduct-oriented mindset … with a focus on solving real business problems rather than over-engineering solutionsExperience with iterative development using A / B testingMust HavesSolid software engineering experience with strong evidence of the ability to learn and work effectively in our Scala and TypeScript stack — with ...

Overview Wise is a global technology company building the best way to move and manage the world’s money. The Contact Automation team in London develops an intelligent system to power an automated Wise Assistant. This system answers most customer questions within the chat interface and supports agents … issues. Responsibilities Own the design and evolution of evaluation frameworks for LLM-based systems both offline and online. Build and scale A / B testing to measure real customer impact and guide product decisions. Analyse conversation data to uncover opportunities and collaborate with ...

performance. Support future website projects and digital marketing initiatives. Skills & Experience Essential Previous experience in website design and development. Strong graphic design and UI / UX skills. Experience creating landing pages with a focus on conversion. Solid understanding of technical SEO. Experience using Google Analytics, Google Search … ability to work collaboratively with marketing teams. Desirable Knowledge of HTML, CSS and JavaScript. Experience with conversion rate optimisation (CRO) and A / B testing. Understanding of CRM integrations and lead tracking. Experience working within a fast-paced commercial environment. What ...

across diverse sources. Automate and optimise workflows using tools like Airflow, dbt, and Spark. Support data modelling for analytics, dashboards, and A / B testing. Collaborate with cross-functional teams to deliver data-driven insights. Work with cloud platforms (GCP preferred) and tools like BigQuery. … Requirements: Strong SQL and experience with relational / non-relational databases. Proficiency in Python and / or Java. Experience with cloud infrastructure (GCP preferred, AWS, or similar). A proactive, collaborative approach and strong communication skills. This is a fantastic opportunity to work ...

that directly impact revenue and customer satisfaction across multiple markets. You will take ownership of experimentation strategy and deliver measurable commercial outcomes in a data-led environment that values innovation and continuous improvement. The Company They are a well-established organisation operating in a … digital-first, customer-centric industry, serving millions of customers across international markets. With a strong reputation for service excellence and a focus on continuous innovation, they invest heavily in technology, data, and customer experience. Their collaborative culture brings together teams across product, marketing, and engineering ...

that directly impact revenue and customer satisfaction across multiple markets. You will take ownership of experimentation strategy and deliver measurable commercial outcomes in a data-led environment that values innovation and continuous improvement. The Company They are a well-established organisation operating in a … digital-first, customer-centric industry, serving millions of customers across international markets. With a strong reputation for service excellence and a focus on continuous innovation, they invest heavily in technology, data, and customer experience. Their collaborative culture brings together teams across product, marketing, and engineering ...

Analytics Manager London (3 days per week) Up to £89,000 + bonus This is an opportunity to join a business undergoing a major transformation, where analytics sits at the centre of commercial decision making. You will play a key role in shaping … retail, and finance teams to support strategic decision making Support KPI reporting and dashboard development using Power BI Design and evaluate A / B tests to optimise performance across channels Conduct segmentation, cohort, and lifetime value analysis Improve reporting frameworks, data quality, and consistency ...

supervise ML models in production environments, ensuring high availability, optimal performance, and continued relevance. Experimentation: Lead the design and analysis of A / B tests and offline experiments to evaluate model efficacy and support continuous improvement. Cross-Functional Collaboration: Engage with multidisciplinary teams to align … full lifecycle of machine learning, from model development, deployment and serving to monitoring and maintenance. Proficiency in Python and knowledge of ML libraries / frameworks (e.g., TensorFlow, PyTorch). Experience with high-volume data processing and real-time streaming architectures. Strong understanding of recommendation system design and personalisation algorithms. ...

company is on a mission to help companies build better products through data. Following our acquisition of Statsig, we now offer one of the most comprehensive experimentation and product analytics platforms on the market. As an Customer Data Scientist, you will combine deep experimentation expertise, applied statistics … related field with a strong foundation in experimental design and causal inference. Hands‐on experience designing, running, and analyzing A / B tests and applying advanced experimentation methodologies, including variance reduction, holdouts, sequential testing, or related techniques. Strong proficiency ...

clearly communicating the results to stakeholders. Essential experience includes: Strong SQL skills and confidence working with large datasets. 4+ years' experience in an analytics / modelling environment. Experience with predictive modelling and / or customer segmentation . Strong numerical and analytical capability. Ability to translate data into commercially … following would be particularly valuable: Customer Lifetime Value (CLV) modelling. Churn or customer decay modelling. Marketing channel attribution. A / B testing. Next Best Action. Personalisation algorithms. Customer lifecycle management. Product or marketing analytics. Subscription-based businesses. Banking, lending, financial services or fintech. ...

Sales. Comfortable using qualitative and quantitative data to identify opportunities and validate decisions. Experience designing, running and analysing product experiments and A / B tests. Strong understanding of product analytics tools such as Amplitude, Mixpanel or similar platforms. Excellent prioritisation skills, with the ability … environment with a bias towards experimentation and iteration. Company Rapidly growing technology platform - UK based Fully remote Salary & Benefits The salary range / rates of pay is dependent upon your experience, qualifications or training . Robert Half Ltd acts as an employment business for temporary positions ...

Work directly with senior stakeholders in a growing Data Science team Up to £90,000 + 7% Bonus Hybrid | London (2 days / week) - Leicester office visit once a month included Join one of the UK's largest membership platforms, using machine learning to improve … Develop recommendation and search algorithms Create forecasting and marketing mix models Detect fraud, broken journeys and offer issues Design and evaluate A / B tests Translate business problems into scalable ML solutions Tech stack: Python, SQL, Databricks, dbt, MLflow Requirements 5+ years' commercial Data Science ...

hallucination detection) Build and maintain evaluation datasets, benchmark suites, and annotation workflows. Conduct offline experiments and contribute to online experimentation and A / B testing. Analyze experimental results and communicate findings to stakeholders. Contribute to responsible AI practices focused on quality, reliability, and trust. Cross … systemsSearch and retrieval architectures (lexical, vector, hybrid) Evaluation methodologies for IR and generative AI systems Strong programming skills in Python Experience with modern AI / ML frameworks and tooling (e.g., PyTorch, Hugging Face, LangChain, LangGraph , Haystack) Experience working with Databricks or similar distributed data and machine learning platforms Understanding ...

Lead Product Manager | B2C Growth | Web & Mobile | AI Product Builder 🚀 Role: Lead Product Manager Location: City of London - 1–2 days p / w Salary: Up to £115,000 + bonus + equity We’re partnered with one of the UK’s most exciting high-growth B2C scale … directly to commercial outcomes. 🚀 What makes this exciting: Owning end-to-end product domains with real accountability for growth metrics Running A / B tests and experiments that directly impact conversion, retention and customer behaviour Working across web and mobile experiences used by customers ...

Here? Fyxer develops applied AI software that automates email, turning it from a daily burden into a powerful competitive edge for professionals in real estate, consulting, and recruiting. The company has surged from $1M to $30M ARR in 12 months, backed by top investors like Marc … decisions and outcomes. You will collaborate directly with engineers and founders to shape solutions from the start, validating ideas via prototypes, A / B tests, analytics, and customer interviews. Additionally, you will coach the team on advanced product thinking, introduce scalable frameworks, and accelerate ...

powers people’s progress by creating life‐changing learning experiences through human‐led, tech‐enabled education. The company has reached unicorn status with a $150M Series D and connects over 100,000 tutors … teaching 90+ languages to learners in 180 countries. The Data Team sits at the heart of every decision, running hundreds of A / B tests to optimize the product amid the complexities of a subscription‐based marketplace. What Will You Do? As a ...

hallucination detection) Build and maintain evaluation datasets, benchmark suites, and annotation workflows. Conduct offline experiments and contribute to online experimentation and A / B testing. Analyze experimental results and communicate findings to stakeholders. Contribute to responsible AI practices focused on quality, reliability, and trust. Cross … systemsSearch and retrieval architectures (lexical, vector, hybrid) Evaluation methodologies for IR and generative AI systems Strong programming skills in Python Experience with modern AI / ML frameworks and tooling (e.g., PyTorch, Hugging Face, LangChain, LangGraph , Haystack) Experience working with Databricks or similar distributed data and machine learning platforms Understanding ...

development, deployment, maintenance, and performance evaluation for the Cint Exchange. Develop a comprehensive, predictive understanding of marketplace dynamics, including price elasticity, supply / demand balance, and their underlying mechanics within the Cint Exchange. Independently carry out project planning, development, and maintenance with minimal supervision. Analyze large, diverse … machine learning methods to solve complex business problems. Conduct exploratory analyses into key metrics and lead the design and execution of A / B tests and other complex experiments to validate hypotheses. Create clear, effective deliverables that communicate complex insights and recommendations through compelling visualizations ...

Fractal Analytics in London is seeking a Senior ML Engineer for a 12-month FTC to design, train, and deploy advanced ML models focused on personalization … recommendations. The role blends research, production deployment, and collaboration with cross-functional teams. You will build scalable data pipelines, experiment with A / B tests, and ensure models run reliably in production using frameworks such as TFX, Kubeflow, TensorFlow Serving, and TorchServe. #J-18808-Ljbffr ...

Senior Product Data Scientist Contract Length : 12 Months Location : Hybrid - 3 days a week at Heathrow Airport IR35 Status : Inside About the Role We are looking for a Senior Product Data Scienti st to help drive product innovation through data, experimentation and advanced analytics. You will … metrics and evaluate product performance. Conduct exploratory analysis to identify opportunities for growth and customer impact. Design and analyse experiments including A / B tests and observational studies. Build predictive models and analytical tools that support product decision-making. Develop decision science and optimisation solutions ...

tracking tools Collaborate with RevOps for high-quality data flows and accurate measurement Support Conversion Rate Optimisation (CRO) initiatives and A / B test setup Implement technical AEO / SEO updates and improve organic visibility Participate in code reviews and adopt best practices … development using Node.js, Express, APIs and databases Experience working with CMS platforms (Contentful), templates, components and content-driven web builds Understanding of technical SEO / AEO principles and implementation Familiarity with analytics and tracking tools such as GA4, Google Tag Manager and HubSpot Experience using Git and working ...