101 to 125 of 276 A/B Testing Jobs in London

Real-Time Optimisation Specialist – CRO & A/B Testing

Location
Greater London, England, United Kingdom
part of WPP, is recruiting an Optimisation Manager contractor for a 3-month engagement starting August. You will drive rapid site optimisation and continuous improvement within our Rapid Iteration & Optimisation framework, collaborating with Paid Media, CX, and Development teams to convert insights … into measurable growth for global clients. You will own the end-to-end execution of the roadmap, manage weekly updates, run A / B tests, implement personalisation, and ensure data quality across #J-18808-Ljbffr ...

Head of Data Science

Location
Greater London, England, United Kingdom
team is small but technically strong - production ML in fraud detection, text moderation, and taxonomy classification, running on SageMaker with a dbt / Snowflake stack. We're operating reactively, and there's significantly more value data science can unlock across the marketplace. You’ll have leadership … technical foundation Ship ML products that drive measurable business outcomes - not just models Establish experimentation as a discipline: A / B testing, causal inference, automated experimentation Build foundational data science infrastructure: feature store, model governance, monitoring, CI / ...

product analyst in e-commerce

Location
Greater London, England, United Kingdom
across customer funnels and journeys to identify opportunities to improve conversion, engagement, and retention; Own the design, execution, and evaluation of A / B tests and experimentation frameworks; Identify growth opportunities and influence prioritisation through data-led recommendations and experiments; Translate complex data into clear … design in product environments; Advanced SQL skills; Strong experience with Python, including pandas and NumPy, for large-scale data analysis; Lead A / B testing programmes and influence product decisions through experimentation; Significant experience analysing customer behaviour within digital products or e-commerce ...

Senior II Full-Stack Engineer (back-end heavy)

Location
Greater London, England, United Kingdom
scale, and building something that truly matters for millions of people, every day. MEET THE TEAM! Our team builds scalable, resilient products using Python / Django on the backend and React on the frontend, all with one goal in mind: creating a smooth, meaningful experience … learners and tutors. We're proudly tech-agnostic, great engineers come from all kinds of backgrounds. Whether you've worked with Java / Spring, Node.js, Ruby on Rails, Scala / Play, PHP, or Go, you'll feel right at home here. Python experience isn't required. We make ...

Specialist, Search Engine Marketing (SEM)

Location
Greater London, England, United Kingdom
Score, click-through rate, and CVR Own the post-click experience alongside Web and CRO partners — designing and running landing page A / B tests, using experimentation and heat-mapping tools to diagnose where the journey breaks, and turning findings into page-level recommendations. Lead … managing meaningful paid search budgets, with a rigorous approach to pacing, efficiency, and forecasting. Fluency in performance metrics (CPC, CTR, CVR, CPA / CPL, ROAS or ROI) with the ability to use data to make fast, confident optimisation decisions — and to explain the reasoning behind them. Strong ...

Senior CRO Manager

Location
Greater London, England, United Kingdom
customer acquisition, and revenue. You will report directly to VP Digital and regularly collaborate with the wider Marketing organization, Product, Sales, Analytics teams, UX / UI, Development, and our strategic digital agency. How We Work Assigned workspace in London office Company-issued equipment Role Responsibilities Developing and executing a … impact, effort, and strategic importance Driving continuous improvement of conversion funnels across acquisition, engagement, and retention stages Designing, implementing, and managing A / B tests, multivariate tests, and personalization initiatives Creating test hypotheses based on quantitative and qualitative data insights Ensuring statistical validity and rigorous ...

Senior Product Analyst (f/m/d)

Location
Greater London, England, United Kingdom
a product analytics platform such as Amplitude, Mixpanel, Heap or an equivalent. You have experience supporting product experiments and A / B tests, including defining hypotheses and success metrics and interpreting results appropriately. You understand product instrumentation, including event taxonomies, tracking plans … point in the application or interview process, please let us know. the company is part of the Axel Springer group. Learn more ataxelspringer.com / en / , and explore the Axel Springer Essentials here: axelspringer.com / en / inside / the-essentials-what-we-have-adapted ...

Data Scientist

Location
Greater London, England, United Kingdom
Science Manager Location: London or Amsterdam Hybrid role: 3 days a week from our office & 2 days working from home Full time / Part time role: Full time Ready for a challenge? Then Just Eat Takeaway.com might be the place for you. We're a … measurable difference to our customers and partners. These are some of the key components to the position: Lead the development and deployment of ML / AI solutions including embedding models, fine-tuned LLMs, and ranking systems that drive engagement and orders while raising the bar for technical excellence. Apply ...

Performance Lead – Booking Assistance

Location
Greater London, England, United Kingdom
Tech teams, integrating Agent Assist, smart routing, and personalized support capabilities. Pioneer Operational Experiments: Design, launch, and evaluate pilot projects and A / B tests to validate conversion enhancements and scale high-impact strategies across networks. Deliver Strategic Insights: Synthesize complex data into clear, compelling … aligning executive sponsors, product owners, and vendor partners toward common goals. Minimum Qualifications & Experience: Proven track record (5+ years) driving operational execution, sales / conversion growth, or performance management in customer-centric environments. Bachelor's degree in Business, Operations, Economics, or equivalent practical industry experience. Demonstrated expertise in managing ...

Digital Analyst

Location
Greater London, England, United Kingdom
impact, quantifying outcomes against objectives.Forecast and prioritise upcoming analytics and reporting work in line with the digital roadmap.Report on A / B tests using Adobe Target, making sure results are statistically sound before recommendations are made.Partner with trading, product, marketing and technology colleagues to embed … share findings and recommendations that drive improvements to traffic, conversion, bookings, joiners, customer experience, etc by clearly articulating specific benefits for each opportunity / recommendationWhat You’ll Need4+ years’ experience using Adobe Analytics in a similar digital reporting or insight role.Hands-on experience with Adobe Target, including ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Location
Greater London, England, United Kingdom
Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions … meet regulatory standards without compromising user experience. Drives engineering best practices for rapid, safe iteration on consumer products, including feature flagging, A / B testing frameworks, and progressive rollout strategies. Required Qualifications, Capabilities and Skills Formal training or certification on software engineering concepts ...

Lead Software Engineer- iOS- Senior Hands On- JPM Personal Investing

Location
Greater London, England, United Kingdom
post production Identify, troubleshoot and resolve existing or newly-identified prioritised defects Write tests for all code you deliver and adhere to best practices / standards, ensuring high-quality code Take ownership of, or assist others with, bi-weekly releases and associated processes Participate in code reviews, ensuring high … participate in some of the many skill share sessions we regularly hold in the iOS team and across the wider Engineering department. Propose / contribute / collaborate on Technical Initiatives - improving and evolving the existing codebase and toolset Be keen to ensure that we focus on solving ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
partnering directly with JPMorganChase to hire for this role. JOB DESCRIPTION At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable … meet regulatory standards without compromising user experience. Drives engineering best practices for rapid, safe iteration on consumer products, including feature flagging, A / B testing frameworks, and progressive rollout strategies. Required Qualifications, Capabilities and Skills Formal training or certification on software engineering concepts ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Location
Westminster, West End, United Kingdom
partnering directly with JPMorganChase to hire for this role. JOB DESCRIPTION At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable … meet regulatory standards without compromising user experience. Drives engineering best practices for rapid, safe iteration on consumer products, including feature flagging, A / B testing frameworks, and progressive rollout strategies. Required Qualifications, Capabilities and Skills Formal training or certification on software engineering concepts ...

Credit Pricing Manager

Location
Greater London, England, United Kingdom
York and have more than 60,000 employees spanning six continents. For more information, visit www.exlservice.com. Role Title: Credit Pricing Manager BU / Segment: Analytics / Data / Banking Location: London, Liverpool, United Kingdom (Hybrid, 1 day a week, office-based) Employment Type: Permanent … overall portfolio performance. Design and implement automated reporting and dashboards to provide timely visibility of pricing, risk and commercial performance. Lead A / B testing and controlled experimentation to evaluate the customer, commercial and risk impact of pricing initiatives. Represent credit pricing ...

iOS Engineer

Location
Greater London, England, United Kingdom
ownership, experimentation, and continuous improvement. Mobile: Swift, SwiftUI, iOS SDK Architecture: MVVM, Clean Architecture, SOLID principles Tooling & Delivery: Swift Package Manager, Bitrise, Fastlane, CI / CD pipelines Testing: Strong focus on Unit Testing, UI Testing, experimentation, and product measurement iOS Development Experience … products require balancing technical excellence with customer and business outcomes. Bonus points if you have experience with: Consumer-facing mobile applications A / B testing and experimentation E-commerce, marketplace, or discovery products SwiftUI in production environments Our Ways of Working ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Location
Greater London, England, United Kingdom
Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions … meet regulatory standards without compromising user experience. Drives engineering best practices for rapid, safe iteration on consumer products, including feature flagging, A / B testing frameworks, and progressive rollout strategies. Required Qualifications, Capabilities and Skills Formal training or certification on software engineering concepts ...

Marketing - Demand Generation Manager

Location
Greater London, England, United Kingdom
pipeline contribution and campaign performance. Implement advanced targeting approaches including Account-Based Marketing (ABM), intent audiences, retargeting and lookalike campaigns. Lead A / B testing across messaging, audiences, creative formats, landing pages and conversion journeys. Pipeline Performance & Funnel Optimisation Manage and optimise … Your birthday off – on us Group Personal Pension Plan Annual Retirement Planning Advice Mortgage Advice Life Assurance Interest-free Season Ticket Loan 24 / 7 / 365 Employee Assistance Programme, including counselling Employee Recognition Scheme Retail and Gym Discounts Eyecare Vouchers Cycle to Work Scheme Holiday Buying Scheme ...

Lead Software Engineer- iOS- Senior Hands On- JPM Personal Investing

Location
Greater London, England, United Kingdom
post production Identify, troubleshoot and resolve existing or newly-identified prioritised defects Write tests for all code you deliver and adhere to best practices / standards, ensuring high-quality code Take ownership of, or assist others with, bi-weekly releases and associated processes Participate in code reviews, ensuring high … participate in some of the many skill share sessions we regularly hold in the iOS team and across the wider Engineering department. Propose / contribute / collaborate on Technical Initiatives - improving and evolving the existing codebase and toolset Be keen to ensure that we focus on solving ...

Staff Applied ML Engineer - Financial Crime

Hiring Organisation
Wise
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
145000 to 182000 GBP Annually
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 … Wise Wise Tech Stack (2025 update) See what it's like to work at Wise London! Our Engineering career map Wise Engineering – https: / / medium.com / wise-engineering What do we offer: Starting salary: £145,000 - £182,000 + RSUs Wise Benefits #LI-AB3 #LI-Hybrid ...

Senior Data Scientist - LeapSpace

Hiring Organisation
Elsevier
Location
London Area, United Kingdom
contribute to the technical direction of retrieval and RAG systems. This role is ideal for someone with deep hands-on experience in search / retrieval systems, RAG pipelines, and evaluation frameworks, who is ready to operate as a senior individual contributor with growing technical leadership responsibilities. … detection) Contribute to development of evaluation datasets, gold standards, and annotation strategies. Guide and review experimental design, including offline evaluation and A / B testing, ensuring statistical rigor and validity. Contribute to responsible AI practices, including bias, fairness, and risk evaluation Generative ...

Analytics & Optimisation Lead

Location
Greater London, England, United Kingdom
adjustments at any point in the application or interview process, please let us know and feel free to note which pronouns you use (she / her, he / him, they / them etc). Role Overview The Analytics & Optimisation Lead is responsible for leading Candyspace’s analytics … highest value opportunities and align experimentation activity to client objectives. Experimentation: Lead the design, delivery and evaluation of experiments across A / B testing, segmentation and personalisation, ensuring strong hypotheses, sound methodology and meaningful learning. Tools: Guide the selection, application and evolution ...

Senior Product Analyst

Location
Greater London, England, United Kingdom
London / Hybrid £60,000 - £80,000 + share options up to £31,500 + Benefits Accurx is where conversations happen with and about patients. For decades, the NHS has struggled with fragmented systems that make simple tasks feel impossible. We’re changing that by building a … initiative is backed by a robust measurement framework. You will lead our experimentation initiatives by independently proposing and running A / B tests - or other rigorous methodologies- to validate product hypotheses and influence our direction. You will interrogate user behaviour to find ...

Product Manager (US Loans)

Location
London, United Kingdom
hackajob is partnering directly with Lendable to hire for this role. About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money.We're building one of the worlds leading fintech companies and are off to a … help the customer, or grow volume Figuring out how best to use LLMs to intelligently aid with customer service, servicing, collections A / B testing customer journeys from application through to servicing - finding what actually moves conversion, satisfaction, and repayment Improving the post ...

Product Manager (US Loans)

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
hackajob is partnering directly with Lendable to hire for this role. About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money.We're building one of the worlds leading fintech companies and are off to a … help the customer, or grow volume Figuring out how best to use LLMs to intelligently aid with customer service, servicing, collections A / B testing customer journeys from application through to servicing - finding what actually moves conversion, satisfaction, and repayment Improving the post ...