326 to 350 of 401 A/B Testing Jobs

SEO & CRO manager

Location
Greater London, England, United Kingdom
this channel. The Demand Generation Manager has one clear priority, use the LoyaltyLion website to reach and convert more brands. The role plays a crucial part across our inbound efforts, supporting the Demand Director across all areas of content development from creative scripts to website content, and site … audits where needed Optimisation and CRO Website user experience research and optimisation Develop, improve and optimise site user journey CRO and A / B testing experiments Messaging and experience Development of landing pages for paid media campaigns Development of ad campaign messaging ...

Hybrid Remote Data Analyst — Ecommerce Growth

Location
Greater London, England, United Kingdom
Heal's in London is seeking a Data Analyst to join our Head Office Ecommerce team and turn data from Google Analytics, Shopify and Klaviyo into clear, actionable insights that drive growth and enhance the customer … journey. You will own ecommerce reporting and dashboards, analyse campaign performance, manage data feeds, support segmentation and attribution, and contribute to A / B testing and site optimisation. The role is hybrid, requiring three days in the office per week. #J-18808-Ljbffr ...

Data Scientist III - LeapSpace

Location
Greater London, England, United Kingdom
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 ...

Fix Meta Pixel & Google Analytics 4 (GA4) Tracking Discrepancies

Location
Manchester, England, United Kingdom
Analytics 4 are reporting wildly different conversion numbers for our checkout flow. We suspect double-firing purchase events on order confirmation. We need a tracking specialist to audit Google Tag Manager, configure standard events, and verify deduplication via Conversions API. Inaccurate tracking data is causing ad algorithms … Audit, Implementation & Results Report : Complete execution of requested deliverables with final quality check. Requirements: Demonstrated experience with Klaviyo, Mailchimp, Email Sequences, A / B Testing Quick turnaround needed — must be available to start within 24 hours. No black-hat SEO tactics — Google guidelines ...

AI Evaluation Data Scientist

Location
Greater London, England, United Kingdom
ensure our scoring remains reproducible and defensible. Ideal candidates bring 5+ years in industry data science, strong experiment design and A / B testing skills, and the ability to clearly communicate findings to executive stakeholders. #J-18808-Ljbffr ...

Product Manager (Social Team)

Location
Greater London, England, United Kingdom
accountable for the revenue targets that come with it. Design and run experiments across various social and engagement initiatives (A / B tests, lightweight concept tests) to learn quickly. Plan jointly with the Engagement team so the shared goals stay aligned. Represent Social in roadmap … a country that doesn't have public health care. Enhanced Maternity & Paternity- an enhanced package on top of statutory requirements. 401k / Pension - TryHackMe makes it easy to save money for your retirement. Our Hiring Process Talent Acquisition screen (30 min) Product background interview (30 min) Take ...

iOS Developer (Radiotech)

Location
Greater London, England, United Kingdom
architectural solutions. Troubleshoot complex issues and optimize application performance and memory usage. Perform code reviews and contribute to technical documentation. Maintain and improve CI / CD and release workflows. Collaborate with Product Managers on technical solutions, planning, and estimation. Proactively suggest technical and product improvements. Use AI coding tools … development workflow. Requirements 4+ years of professional iOS development experience. Strong proficiency in Swift and modern language features. Strong experience with Swift Concurrency (async / await) and reactive programming such as Combine. Production experience with both SwiftUI and UIKit. Strong understanding of iOS architecture, application lifecycle, and platform frameworks. ...

GTM Operations Specialist

Location
Greater London, England, United Kingdom
AppsFlyer, we believe the difference between good and great is often found through marginal gains. We're looking for a GTM Operations Specialist to identify, design, and run the experiments that move the needle on ARR — one controlled test at a time. About the Role This … them. Intellectual curiosity and a bias toward action — you don't wait for perfect information. Bonus Points Experience running A / B tests or structured experiments in a business context. Background in strategy building and / or business intelligence. Familiarity ...

Growth Marketing Analyst (f/m/x)

Hiring Organisation
HelloFresh
Location
Amsterdam, Noord-Holland, Netherlands
Employment Type
Permanent
Salary
EUR Annual
team operates. You will own and iterate on what you build, delivering impactful, data-driven insights and tools that accelerate growth. Arbeidsvoorwaarden / Benefits 20% off HelloFresh 40% off Factor subscriptions hybrid work (50% office, 50% remote) 24 days annual leave home office setup budget pension scheme Verantwoordelijkheden Build … processes using data and automation Conduct analyses on customer acquisition, retention and paid media performance, and translate results into recommendations Evaluate A / B tests and help designs better ones Collaborate with the global data / BI team in Berlin to learn tools ...

Senior Customer Analyst

Location
Wallingford, England, United Kingdom
usage data, so no insight rests on one warehouse or one dashboard. Validate or kill ideas quickly. Pressure-test concepts with A / B tests, prototype tests and interviews, and tell the team whether a bet solves a real problem. Close … a voice. Co-develop UX content with the Lead and Commercial team. What you'll bring 2-4 years in research, qual / quant insight, or product / bet design Solid grounding in qualitative and quantitative methods, and the judgement to know which one a ...

Analytics Lead, Full Stack

Location
United Kingdom
understanding of the consumer lending and credit industry, including lending economics, portfolio performance, and credit metrics. Experience supporting international lending markets, particularly Europe and / or APAC, is highly desirable.- Demonstrated ability to balance growth objectives with profitability and develop data-driven growth strategies.- Bachelor's or Master … finance, or economics.- 5+ years of proven success in a cross-functional analytical role.- Practical and theoretical knowledge of A / B testing.- Experience with SQL and performing statistical analysis using Python.- Experience simultaneously balancing multiple workstreams and prioritizing an analytics roadmap.- Demonstrated ...

Staff Data Scientist

Location
Greater London, England, United Kingdom
progress. At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact. We power … every day. Meet the team! At Preply, data is at the heart of every decision we make. We run hundreds of A / B tests to continually optimize our product, each with its own analytical and tracking challenges. The complexity of our subscription model, along ...

Data Scientist - Payment Success Software engineering London

Location
Greater London, England, United Kingdom
merchants by crafting optimal payments strategy. Conduct deep-dive exploratory data analysis to uncover insights and anomalies Conduct experiments and A / B tests to improve performance, including ML based solutions. Develop cutting-edge automation tools aimed at monitoring and optimising merchants’ performance. Implement robust … Fintech or Consultancy, using analysis to make business recommendations A huge advantage if you have previous experience working as Payment Analyst / Expert Data driven approach, by clearly defining success metrics and measuring progress against them SQL / Python knowledge to extract & analyse large data from ...

ASO Specialist

Location
Greater London, England, United Kingdom
NYSE-listed digital gaming company behind some of the world’s leading Sports and iGaming brands, including Betway and Jackpot City. We’re a powerhouse built on decades of expertise and we’re changing the game for good. Our mission is to give our customers a … improve conversion rates. Optimize metadata including titles, descriptions, keywords, and visual assets, to boost visibility, rankings, and user acquisition. Run A / B tests on store assets and analyze results to inform ongoing optimization. Drive mobile innovation by staying up to date with the latest ...

Software Engineer III - Full Stack

Location
Leeds, England, United Kingdom
platform, partnering closely with product and design to deliver engaging, performant, and accessible features Design and implement experimentation capabilities (feature flags, A / B tests) to validate ideas quickly and safely Integrate with backend APIs and collaborate with platform teams to build reliable, observable systems … smart contracts Strong understanding of performance optimization, responsive design, accessibility, and web standards Experience integrating with backend APIs and collaborating with cross-functional platform / infra teams Experience with CI / CD pipelines, testing strategies, and safe deployment practices for web applications Team-first mentality, with ...

Senior Product Manager

Location
Greater London, England, United Kingdom
with smart, high-performing solutions Your Story 5+ years of demonstrated product management experience, ideally within fast-growing tech, fintech, or SaaS businesses BA / BS in a technical or analytical field You see the endgame but are focused on refining every detail A true … Expert at distilling complex challenges into simple, elegant products that delight users Data-driven mindset: you formulate hypotheses, design and run A / B tests, and make decisions grounded in evidence Clear, empathetic communicator who can engage and align both technical and business stakeholders Customer ...

Audience Orchestration Designer

Location
Welwyn Garden City, England, United Kingdom
stakeholder briefs. Design, implement, and optimise journey logic—including branching rules, timing, triggers, and suppressions. Run test‐and‐learn initiatives (A / B tests, send‐time optimisation, subject line testing) to drive continual improvement. Troubleshoot data or journey issues, ensuring real‐time behavioural … pilot innovative use cases (e.g., AI‐driven journeys, real‐time personalisation), and maintain documentation and audience catalogues. Hands‐on experience with Adobe Experience Platform / CDP or equivalent journey orchestration tools (1–2 years). Strong analytical mindset with the ability to interpret data, design segmentation logic (SQL desirable ...

Software Engineer III - Backend, Fanatics Markets

Location
Leeds, England, United Kingdom
partnering with product and other engineering teams to deliver robust, observable, and maintainable systems Design and implement experimentation capabilities (feature flags, A / B tests) to validate ideas quickly and safely Model and manage data for markets, orders, and transactions with a focus … blockchain data (e.g., event logs, indexing, reconciliation between on-chain and off-chain state) Experience with PostgreSQL - complex query optimization, indexing strategies, and schema / migration management Experience with event driven architecture like Kafka or PubSub Strong grasp of software design principles (e.g., SOLID, DRY) and testing ...

Data Scientist - Principal

Location
Greater London, England, United Kingdom
monetization, and operational outcomes.* Lead the modeling framework for complex systems, guaranteeing comprehensive evaluation and monitoring of causal inference, uplift modeling, sequential decisioning, bandits / reinforcement learning, and forecasting.* Partner with game teams to define success metrics, guardrails, and decision frameworks, translating analytical results into actionable product and operational … actions.* Define and uphold engineering standards and guidelines for model development, including validation, uncertainty, reproducibility, and bias / quality checks.* Drive scalable experimentation with A / B and Multi-armed bandit testing frameworks, power analysis, variance reduction, and online-offline alignment.* Work ...

AI & ML Engineer (Contract)

Location
Manchester, England, United Kingdom
architectures such as ReAct. GCP knowledge. Experience of docker and cloud databases. RAG. More: Skilled in packaging and serving models using containers and KServe / Vertex endpoints, as well as working with feature and model registries, CI / CD, model monitoring, and drift detection. Experienced with cost-efficient … autoscaling, GPU scheduling, canary and shadow deployments, and A / B testing. Mandatory Skills: Cloud Engineering GCP.Reinvent your world. We are building a modern Wipro. We are an end-to-end digital transformation partner with the boldest ambitions. To realize them, we need ...

Group Technical Program Manager: Cloud & Platform Ecosystems

Location
Manchester, England, United Kingdom
decisions. Technology is at our core. And innovation is everywhere. But our company is more than datasets, lines of code or A / B tests. We're the thrill of the first night in a new place. The excitement of the next morning. … customers of Booking.com. Group Technical Program Managers have demonstrated experience leading teams that lead large cross-organizational software development projects, and have a deep technical background, ideally within enterprise software companies, platform and shared technology experience, and working with regulatory and compliance best practices. They must be able ...

Senior Data Analyst

Location
Greater London, England, United Kingdom
Company Overview Team Creation Limited is a fast-growing software development company operating across Asia and Europe. We provide services including market research, artificial intelligence solutions, cloud computing, and mobile application development for a broad range of international clients. Our focus is on delivering innovative … growth and development of our professional workforce. Key Responsibilities Product analytics — Define metrics for new and existing features. Design and analyse A / B tests end-to-end: hypothesis, sample sizing, statistical readout, and decision recommendation. Diagnose user behaviour, identify drop-off points, and surface ...

Senior Software Engineer (iOS)

Location
Greater London, England, United Kingdom
ship innovative UX patterns for conversational interfaces and AI-driven experiences on iOS Architect and build Swift-first, production grade features using async / await, structured concurrency and modern iOS APIs Lead implementation of context-aware experiences using behavior, preferences, and app state with an emphasis on performance … privacy Use metrics, experimentation, and validation (analytics, A / B tests, logging) to iterate on features and improve quality over time Turn complex AI / ML capabilities into simple, intuitive mobile interactions Use AI tools (e.g., Claude Code / LLM‐based coding assistants ...

Founding Sales Development Representative

Location
Greater London, England, United Kingdom
hiring a Founding SDR to help build the outbound sales function for Vantage, Profile’s new SaaS platform for professional services firms. Profile is a multi-award-winning PR and communications agency. We are launching Vantage, a new SaaS platform for professional services firms … contact relevant individuals at target professional services firms Run multi-channel outbound across email, LinkedIn, phone, and other relevant channels A / B test sales messaging, processes, and outbound channels Book qualified meetings with relevant decision makers Hand over qualified meetings to the senior team ...

Data Scientist - Audiobooks Analytics

Location
Greater London, England, United Kingdom
looking for a Data Scientist to join the Business Analytics team within Spotify’s Business Strategy and Insights organization. You will work with the Audiobooks Analytics Lead to help shape our global audiobooks strategy and improve the experience for listeners, creators, publishers, and authors. In this role … Personalization, Product, Finance, and Business teams to improve title selection, recommendation quality, and the listener experience. Design and analyze experiments, including A / B tests and quasi-experiments, to measure the impact of product and go-to-market initiatives. Monitor the health of the audiobooks ...