101 to 125 of 161 A/B Testing Jobs in London

Senior Analyst London - hybrid 3x per week in office Up to £70,000 This is an excellent opportunity for a commercially minded Senior Analyst to join a growing business at an exciting stage of its journey. Working within a central analytics function … solutions and strategic recommendations. Gathering stakeholder requirements and turning them into scalable reporting and insight frameworks. Supporting experimentation, performance measurement, and A / B testing initiatives. Improving data quality, processes, and reporting structures. Contributing to projects focused on analytics innovation, automation ...

have plenty to learn and will join a friendly and collaborative group of talented engineers who are always willing to discuss / share ideas via various internal or external meetings / guilds / pairing sessions. All of this contributes to our primary focus: to build … Identify, troubleshoot and resolve existing or newly‐identified prioritised defects. Ensure high‐quality code through solid testing and adherence to best practices / standards. Work collaboratively with cross‐functional teams and contribute to team discussions / meetings / guilds. Participate in code reviews to maintain ...

deployment, and retraining pipelines using AWS SageMaker. Set standards for model registry usage, automated approvals, and rollback orchestration. Drive infrastructure-as-code and CI / CD maturity for ML systems across multiple environments. Lead design of enterprise‐wide weight‐update patterns and lineage‐aware deployment strategies. Inference Runtime & Cross … tests, and benchmark suites. Architect performance testing for latency‐sensitive inference paths and model hot paths. Establish standards for A / B testing, shadow deployments, canary rollouts, and controlled experiments. Company London Stock Exchange Group Qualifications Essential Proven track record architecting ...

shape the payment foundation that will support Flo's next stage of global growth. You will work across Product, Engineering, Data, Finance, Legal / Compliance, Support, and commercial stakeholders to build payment experiences and platform capabilities that are reliable, scalable, compliant, and growth-oriented. Payments are a … similar Experience managing fraud and dispute processes, including chargeback mitigation and refund strategy Strong grasp of key payments concepts such as: Payment flows SCA / 3DS Tokenisation Issuer declines Retries and dunning Refunds and disputes Reconciliation Subscription lifecycle and entitlement logic Working knowledge of indirect tax compliance (VAT / ...

help us scale. Who You Are You’re a seasoned engineer who has built and scaled high-performance inference systems for AI / ML workloads. You understand the complexities of serving models at scale latency optimization, resource orchestration, autoscaling dynamics, and production reliability. You’ve designed distributed … optimizing inference latency, the next you’re joining customer calls to understand their deployment challenges, and the day after you’re helping with UI / UX, customer success, documentation and product ops. What You’ll Do Inference Platform Architecture & Core Services Design and build the company's inference service ...

Forecasting and management of a multi-million-pound marketing budget Management and development of the performance and paid social team and agencies / partners Working closely with trade, CRM, organic, brand marketing, content, design, customer experience and dev teams, ensuring all activity is commercially focused … feed management agency to optimise and improve the product feed which runs across all paid channels Planning and leading A / B test of ad copy and ad creative across all paid channels Coordinating Ad Hoc growth projects internally and with external agencies WHAT SKILLS ...

About Us Sokin is a next-generation B2B financial services provider, enabling businesses to make and receive global payments with greater speed, lower cost, and total transparency. Our mission is simple: we’re simplifying global business — so businesses thrive wherever they choose to grow. We deliver services across … Search Console, Microsoft Clarity, Crazy Egg, Hotjar, Heap). Track KPIs: traffic, rankings, conversions, bounce rates and page performance. Run heatmaps, A / B testing and CRO experiments to enhance user experience (UX) and conversion rates. Provide regular performance reports with actionable insights ...

SENIOR PRODUCT ANALYST £400-£500 PER DAY OUTSIDE IR35 REMOTE (MUST BE UK BASED) 3 MONTH CONTRACT THE COMPANY This business is undergoing a major shift in how it uses data, moving from strong reporting foundations to a more insight-led, strategic analytics function. With significant … YOUR SKILLS AND EXPERIENCE Proven experience leading product analytics within a digital product environment Strong expertise in experimentation, including A / B testing, hypothesis design, and statistical analysis Advanced SQL skills with experience working across the full analytics lifecycle Experience with ...

user experiences. Proven experience optimizing mobile app performance over constrained networks, including building and maintaining offline-first architectures. Hands-on experience with mobile CI / CD pipelines, including build automation, automated testing, and release workflows. Experience integrating with BI and analytics platforms, with familiarity in designing … interpreting A / B tests to drive product decisions. What you\'ll be doing What you\'ll be responsible for Building and maintaining features using modern frameworks, libraries, and internal component systems, ensuring consistency, scalability, and code quality across the codebase. Delivering polished, engaging user ...

experimentation. Design and execute advanced analytical frameworks to measure customer behaviour, product performance and business impact. Lead complex experimentation programs, including A / B testing, causal inference, uplift modelling and quasi-experimental methods. Develop machine learning, optimisation and decision science solutions that improve … Staff, Principal or equivalent level. Technical Skills Expert-level Python and SQL Experimentation and statistical inference Machine Learning and Predictive Modelling Causal Inference Optimization / Operations Research (preferred) Large-scale data processing BI and visualization tools Cloud-based analytics environments Nice to Have Airline, transportation, logistics, marketplace, e-commerce ...

Location: Hybrid / Remote in the UK | Department: CRM Marketing | Employment Type: Full-Time About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect … teams to diagnose integration and data flow issues. Proactively identify risks and implement scalable solutions. Drive experimentation and performance optimization Design A / B tests with clear hypotheses and measurable success criteria. Analyze performance data to improve audience targeting, customer journeys, and content effectiveness. Share ...

prototype to production, setting incremental releases and refining targets. Translate validated prototype behavior into engineering‐ready work—tickets with clear acceptance criteria and a technical approach refined with the team. Keep squad teams (UX, design, data science, and others) informed ahead of engine changes, briefing each group early … execution across multiple engineering organisations and external dependencies. Strong go‐to‐market experience and skill in hypothesis‐driven product evaluation, including A / B testing and experimentation frameworks. Comfortable with AI coding tools and rapid prototyping; able to build proofs of concept ...

Data Scientist London or Leicester (2 days per week) Join a growing Data Science team where you'll build machine learning solutions that directly influence customer engagement, retention, and commercial performance. This is a highly visible role with significant stakeholder exposure and the opportunity to work … lifetime value, and forecasting Develop anomaly detection solutions to identify issues impacting customer journeys and performance Design and evaluate experiments, including A / B testing Partner with Product, Marketing, Finance, CRM, and Commercial teams to solve business problems Translate complex analysis into actionable ...

Data Scientist London or Leicester (2 days per week) Join a growing Data Science team where you'll build machine learning solutions that directly influence customer engagement, retention, and commercial performance. This is a highly visible role with significant stakeholder exposure and the opportunity to work … lifetime value, and forecasting Develop anomaly detection solutions to identify issues impacting customer journeys and performance Design and evaluate experiments, including A / B testing Partner with Product, Marketing, Finance, CRM, and Commercial teams to solve business problems Translate complex analysis into actionable ...

world‐class work with groundbreaking technologies to build data‐driven products using machine learning, computer vision, natural language processing, speech and audio, and knowledge / data mining. We are looking for a Senior AI Engineer to accelerate our application of AI across teams and products. Come … unlock new efficiencies. Drive end‐to‐end model development lifecycle, leading the team in best practices, ensuring reproducible research and well managed model delivery / deployment. Collaborate cross‐functionally to share diverse ideas, understand business problems, and elevate / mentor your teammates. Translate complex problems into well‐defined ...

Hybrid Day rate: £250-275 Contract status: Outside IR35 Working hours: 8 hours per day Contract duration: 12 months Salt is partnering with a forward-thinking company at the forefront of AI, technology and digital commerce to hire an Ecommerce AI Engineer. You will join a … Improve website performance, security, accessibility, technical SEO and conversion rates * Manage GA4, Google Tag Manager, Search Console, Google Ads tracking and A / B testing * Analyse and optimise customer journeys to increase qualified leads, bookings and revenue * Develop lead-generation funnels, customer journey ...

rate: £(Apply online only) Contract status: Outside IR35 Working hours: 8 hours per day Contract duration: 12 months Salt is partnering with a forward-thinking company at the forefront of AI, technology and digital commerce to hire an Ecommerce AI Engineer. You will join a collaborative … Improve website performance, security, accessibility, technical SEO and conversion rates * Manage GA4, Google Tag Manager, Search Console, Google Ads tracking and A / B testing * Analyse and optimise customer journeys to increase qualified leads, bookings and revenue * Develop lead-generation funnels, customer journey ...

site Salary Range: £45,000-£55,000 Contract Type: Permanent, full-time Working hours: 40 hours per week Salt is partnering with a forward-thinking company at the forefront of AI, technology and digital commerce to hire an Ecommerce AI Engineer. You will join a collaborative … Improve website performance, security, accessibility, technical SEO and conversion rates * Manage GA4, Google Tag Manager, Search Console, Google Ads tracking and A / B testing * Analyse and optimise customer journeys to increase qualified leads, bookings and revenue * Develop lead-generation funnels, customer journey ...

site Salary Range: £45,000-£55,000 Contract Type: Permanent, full-time Working hours: 40 hours per week Salt is partnering with a forward-thinking company at the forefront of AI, technology and digital commerce to hire an Ecommerce AI Engineer. You will join a collaborative … Improve website performance, security, accessibility, technical SEO and conversion rates * Manage GA4, Google Tag Manager, Search Console, Google Ads tracking and A / B testing * Analyse and optimise customer journeys to increase qualified leads, bookings and revenue * Develop lead-generation funnels, customer journey ...

Overview Why Here? Therabody is the wellness tech leader with a mission to inspire and enable every body to feel, perform and look their best. Therabody’s product ecosystem includes category-creating innovations in wellness, performance and beauty products, proprietary software and digital content. This role is within … will partner with design, marketing and engineering teams to generate hypotheses for product enhancements and measure key results using hypothesis-driven A / B testing alongside app analytics. #J-18808-Ljbffr ...

transaction representation across FinCrime domains. Partnering with Data Science on model evaluation, experimentation design and causal measurement in domains where clean A / B testing isn't always possible. Mentoring engineers and data scientists on modern ML fundamentals, production best practices, and architectural … evaluation experience. Experience establishing modern ML practices in organisations scaling their ML capabilities.### Skills Required* Deep Learning* Machine Learning Architecture* System Design (latency / throughput)* Python* PyTorch* Distributed Training* ML Pipeline Orchestration* Sequence Modelling* Graph Neural Networks* Attention Mechanisms* Financial Crime Detection* Fraud Detection* AML* Foundation Models* LLM Evaluation ...

algorithm roadmap using data-driven insights, client needs, competitive context, and measurable outcomes. Develop a clear product analytics narrative (KPIs, benchmarks, adoption / usage, performance attribution) to support senior decision-making and investment cases. Translate client requirements into quantitative problem statements and implementable product specifications. Execution measurement … leadership Build, enhance, and govern TCA frameworks (benchmarks, market impact curves, peer / venue comparisons) calibrated on historical order, execution, and market data. Diagnose execution performance drivers (order size / urgency, liquidity, volatility, venue choice, algo selection, time-of-day effects) and convert findings into product recommendations. Establish ...

Plum Fintech in Greater London is seeking a passionate Staff Engineer to lead technical strategy and drive user growth. You will be responsible for architecting scalable systems and mentoring Senior … Engineers. The ideal candidate has a proven technical leadership track record, excels in system design, and is comfortable with A / B testing frameworks. Plum offers flexible remote working options, stock options, private health insurance, and a fun, inclusive ...

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. Partner … 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 ...

backend stacks Working closely with product managers, designers, and real users to understand problems deeply before jumping to solutions Configuring and maintaining automated CI / CD pipelines and test automation to facilitate a seamless route to production for Azure hosted solutions Developing and supporting environments … outcomes rather than output. You are comfortable using data, analytics, and feedback loops to form hypotheses, run experiments, and make evidence-based decisions. Duties / Responsibilities Engage fully in the development lifecycle of applications and tools, contributing hands-on from coding to reviewing and releasing to production. Partner closely ...