101 to 125 of 180 A/B Testing Jobs in London

Salary: £40,000 – £45,000 + Bonus + Benefits Start Date: ASAP About the Opportunity: We are seeking an ambitious and intellectually curious Junior Data Scientist to join a fast-growing, forward-thinking team working at the forefront of data science, machine learning, and applied AI. This is an excellent opportunity for a recent Master’s … in complex datasets. You’ll collaborate with experienced data scientists, machine learning engineers, and subject-matter experts to design, develop, and deploy models that deliver meaningful impact across a variety of industries. What You’ll Be Doing: Designing and building machine learning models to solve real-world problems Carrying out full data science workflows … from data acquisition and cleaning to modelling, validation, and deployment Applying statistical and AI techniques to generate actionable insights Contributing to experimental research, model prototyping, and A / B testing Presenting findings clearly to both technical and non-technical stakeholders Collaborating across data science, engineering, and product teams to build scalable solutions Staying More ❯

Salary: £40,000 – £45,000 + Bonus + Benefits Start Date: ASAP About the Opportunity: We are seeking an ambitious and intellectually curious Junior Data Scientist to join a fast-growing, forward-thinking team working at the forefront of data science, machine learning, and applied AI. This is an excellent opportunity for a recent Master’s … in complex datasets. You’ll collaborate with experienced data scientists, machine learning engineers, and subject-matter experts to design, develop, and deploy models that deliver meaningful impact across a variety of industries. What You’ll Be Doing: Designing and building machine learning models to solve real-world problems Carrying out full data science workflows … from data acquisition and cleaning to modelling, validation, and deployment Applying statistical and AI techniques to generate actionable insights Contributing to experimental research, model prototyping, and A / B testing Presenting findings clearly to both technical and non-technical stakeholders Collaborating across data science, engineering, and product teams to build scalable solutions Staying More ❯

Salary: £40,000 – £45,000 + Bonus + Benefits Start Date: ASAP About the Opportunity: We are seeking an ambitious and intellectually curious Junior Data Scientist to join a fast-growing, forward-thinking team working at the forefront of data science, machine learning, and applied AI. This is an excellent opportunity for a recent Master’s … in complex datasets. You’ll collaborate with experienced data scientists, machine learning engineers, and subject-matter experts to design, develop, and deploy models that deliver meaningful impact across a variety of industries. What You’ll Be Doing: Designing and building machine learning models to solve real-world problems Carrying out full data science workflows … from data acquisition and cleaning to modelling, validation, and deployment Applying statistical and AI techniques to generate actionable insights Contributing to experimental research, model prototyping, and A / B testing Presenting findings clearly to both technical and non-technical stakeholders Collaborating across data science, engineering, and product teams to build scalable solutions Staying More ❯

Marketing AdTech Data Analyst Location: London (hybrid 3 days per week onsite) Contract: 12 months, up to £425pd inside IR35 Our client is looking for a highly skilled Data Analyst to join a fast-paced ad-tech environment supporting data-driven marketing and advertising initiatives. This role is ideal for someone who thrives at the intersection … engagement. Develop and maintain ETL pipelines using SQL and Python. Translate business needs into analytical requirements, communicating findings with clarity and impact. Conduct data analysis and A / B testing to measure the effectiveness of marketing initiatives. Contribute to scalable reporting solutions, data transformation and automation strategies. What You'll Bring: Professional experience … skills in SQL and Python for data transformation and analysis. Experience with web analytics tools (e.g. Adobe Analytics). Familiarity with data warehousing and database modeling (Snowflake experience a plus). Strong communication and presentation skills, with the ability to explain complex data simply. Self-starter with a commercial mindset and a drive for More ❯

Job Title : Salesforce Marketing Automation Developer Location : London - Primarily Remote with Occasional Travel Salary : £35K - £40K DOE Are you ready to make a difference in the world of marketing? Do you have a passion for driving impactful campaigns through automation? If you're excited about leveraging your expertise to support growth and engagement goals, we want … that convert leads into loyal customers. Data-Driven Strategy: Manage segmentation, ensure data hygiene, and analyze performance metrics to drive smarter marketing decisions. Continuous Improvement: Implement A / B testing and use performance analytics to refine campaigns and boost engagement. Ensure Compliance: Uphold best practices in data privacy and campaign quality (GDPR, CAN … context. You have proven expertise with Pardot and Marketing Cloud. You possess a strong understanding of Salesforce CRM integration and campaign analytics. You are skilled in HTML / CSS for email and landing page customization. Your analytical mindset allows you to turn data into actionable insights. You excel in project management with a keen attention More ❯

Job Title : Salesforce Marketing Automation Developer Location : London - Primarily Remote with Occasional Travel Salary : £35K - £40K DOE Are you ready to make a difference in the world of marketing? Do you have a passion for driving impactful campaigns through automation? If you're excited about leveraging your expertise to support growth and engagement goals, we want … that convert leads into loyal customers. Data-Driven Strategy: Manage segmentation, ensure data hygiene, and analyze performance metrics to drive smarter marketing decisions. Continuous Improvement: Implement A / B testing and use performance analytics to refine campaigns and boost engagement. Ensure Compliance: Uphold best practices in data privacy and campaign quality (GDPR, CAN … context. You have proven expertise with Pardot and Marketing Cloud. You possess a strong understanding of Salesforce CRM integration and campaign analytics. You are skilled in HTML / CSS for email and landing page customization. Your analytical mindset allows you to turn data into actionable insights. You excel in project management with a keen attention More ❯

Mid-Senior Product Data Analyst | FTSE250 FinTech | London (Hybrid) Harrington Starr have partnered with a global FTSE250 FinTech who is on a mission to transform trading. With hundreds of thousands of users worldwide, they're scaling fast — and they need a data-driven problem solver to help them grow. In this role, you’ll … up to First Trade Drive data-led product decisions that impact thousands of clients Design and run experiments that fuel commercial growth What you bring: 5+ years in product / analytics roles Strong skills in SQL, A / B testing, statistics and data storytelling Hands-on with Tableau, Power BI, or Looker … Bonus: Python / R, predictive modelling, FinTech passion What you get: Competitive salary plus discretionary bonus Excellent benefits package Hybrid working (3 days in London office) Career growth with unlimited learning Extra perks: birthday leave, volunteering days, sports and socials Ready to turn insights into impact at one of the world’s leading FinTechs? Please apply now More ❯

Mid-Senior Product Data Analyst | FTSE250 FinTech | London (Hybrid) Harrington Starr have partnered with a global FTSE250 FinTech who is on a mission to transform trading. With hundreds of thousands of users worldwide, they're scaling fast — and they need a data-driven problem solver to help them grow. In this role, you’ll … up to First Trade Drive data-led product decisions that impact thousands of clients Design and run experiments that fuel commercial growth What you bring: 5+ years in product / analytics roles Strong skills in SQL, A / B testing, statistics and data storytelling Hands-on with Tableau, Power BI, or Looker … Bonus: Python / R, predictive modelling, FinTech passion What you get: Competitive salary plus discretionary bonus Excellent benefits package Hybrid working (3 days in London office) Career growth with unlimited learning Extra perks: birthday leave, volunteering days, sports and socials Ready to turn insights into impact at one of the world’s leading FinTechs? Please apply now More ❯

Mid-Senior Product Data Analyst | FTSE250 FinTech | London (Hybrid) Harrington Starr have partnered with a global FTSE250 FinTech who is on a mission to transform trading. With hundreds of thousands of users worldwide, they're scaling fast — and they need a data-driven problem solver to help them grow. In this role, you’ll … up to First Trade Drive data-led product decisions that impact thousands of clients Design and run experiments that fuel commercial growth What you bring: 5+ years in product / analytics roles Strong skills in SQL, A / B testing, statistics and data storytelling Hands-on with Tableau, Power BI, or Looker … Bonus: Python / R, predictive modelling, FinTech passion What you get: Competitive salary plus discretionary bonus Excellent benefits package Hybrid working (3 days in London office) Career growth with unlimited learning Extra perks: birthday leave, volunteering days, sports and socials Ready to turn insights into impact at one of the world’s leading FinTechs? Please apply now More ❯

Mid-Senior Product Data Analyst | FTSE250 FinTech | London (Hybrid) Harrington Starr have partnered with a global FTSE250 FinTech who is on a mission to transform trading. With hundreds of thousands of users worldwide, they're scaling fast — and they need a data-driven problem solver to help them grow. In this role, you’ll … up to First Trade Drive data-led product decisions that impact thousands of clients Design and run experiments that fuel commercial growth What you bring: 5+ years in product / analytics roles Strong skills in SQL, A / B testing, statistics and data storytelling Hands-on with Tableau, Power BI, or Looker … Bonus: Python / R, predictive modelling, FinTech passion What you get: Competitive salary plus discretionary bonus Excellent benefits package Hybrid working (3 days in London office) Career growth with unlimited learning Extra perks: birthday leave, volunteering days, sports and socials Ready to turn insights into impact at one of the world’s leading FinTechs? Please apply now More ❯

Investment Data Analyst: Job Summary : This role offers the opportunity to join a growing data & bi team focused on building innovative business intelligence products. As an Investment Data Analyst, you will be responsible for delivering actionable insights through advanced data models, visualisations, and dashboards. The position involves working with cross-functional teams to ensure reliable data quality, support … strategic decision-making, and enhance the organisation's data landscape. This is a permanent role, based in London and is hybrid working. Requirements : Advanced proficiency in SQL and intermediate Python skills Proven experience with Power BI for data visualisation Hands-on experience with cloud-based platforms and data warehousing tools (e.g., Google Cloud Platform, Big Query) Proven experience … with a detail-oriented mindset Proven ability to act as a bridge between technical teams and business stakeholders Experience designing metrics, conducting A / B testing, and implementing QA processes Proactive problem solver with a delivery-focused approach If you are interested in this role, please apply. More ❯

CRO Manager Hybrid - 1 day a week in London £300-325 per day OUTSIDE IR35 Asap start I am looking for a CRO Manager to work for an agency client What you'll be doing Strategic Enablement Define and refine personalisation and CRO strategies that support long-term business goals. Act as Product Owner for testing … in CRO, digital optimisation, or personalisation roles (agency experience a strong plus). Proven track record in delivering both strategic roadmaps and hands-on testing / personalisation. Experience running A / B tests and personalisation campaigns, and building scalable experimentation frameworks. Strong technical knowledge of front-end web technologies ( HTML … . Proficiency with Adobe Target, Optimizely, GA4, Adobe Analytics . Familiarity with headless CMS platforms (Contentful, Optimizely CMS). Bonus: experience with session replay tools (HotJar, FullStory, Decibel), GTM / tag management, or large-scale transformation programmes. Excellent communication skills and ability to thrive in cross-functional, multi-client, or multi-market environments. Please reach out to Grace McCrudden More ❯

Are you ready to lead fullstack innovation in a high-growth tech environment? We're looking for a Senior Fullstack Engineer who thrives on solving complex problems, mentoring others, and building scalable, high-quality digital products. This is a hands-on leadership role where you'll work across both front-end and back-end … to share knowledge and drive delivery Tech Stack You'll Work With: Back-End: C# (.NET Core, ASP.NET MVC 4.0+) Front-End: React, Next.js, TypeScript, Node.js, Tailwind, SASS Testing & Automation: Postman, NUnit, Jest DevOps & Cloud: Azure (Web Apps, Functions, Redis, Storage), Azure DevOps (YAML, Terraform) Other Tools: Git, SQL Server, Umbraco, Visual Studio, LaunchDarkly, Salesforce Marketing Cloud What … code Experience in responsive design and UI optimization Comfort working in dynamic, fast-paced environments Bonus Points For: Experience in regulated industries or high-volume platforms A / B testing and experimentation Agile / Kanban experience Relevant certifications More ❯

Ecommerce Manager Luxury Fashion London - Onsite £40,000 - £50,000 Step into the world of iconic luxury. This luxury Ready to Wear brand is seeking a visionary Ecommerce Manager to lead their digital retail presence across the UK and international markets. If you live and breathe Ecommerce and luxury fashion, blend creativity with commercial precision, and know how … and menswear Deliver flawless seasonal launches, drops, and digital campaigns that reflect the brands global prestige Optimise UX, conversion, and personalisation through data-driven insights and A / B testing Collaborate with top-tier creatives, marketers, and merchandisers to elevate the online brand experience Champion CRM, performance marketing, and customer retention strategies Manage … a small, agile team and agency partners with flair and accountability What You Bring 5+ years in luxury or premium fashion ecommerce Proven success in scaling online sales and enhancing digital brand presence Deep expertise in Shopify Plus, GA4, CMS platforms, and performance analytics A sharp commercial mind with a creative eye for luxury More ❯

Walker and Sloan are once again working with an award winning B2B Tech Marketing Agency in London, as they are keen to bring on board a B2B Paid Media Manager on a full time basis. About the job Scaling SaaS & tech is tough, that is why the agency helps our customer attract buyers, convert leads and … and manage day-to-day execution across multiple channels Handle budget pacing, forecasting, and collaborate with teams to identify growth opportunities Optimisation & Analysis Conduct ongoing optimisation, A / B testing, and performance analysis to exceed targets Master tracking tools (Google Analytics, LinkedIn) and produce monthly reports with actionable insights Contribute to quarterly client … analysis Enthusiastic, self-motivated, and eager to learn. Able to operate independently with minimal supervision Nice to haves: Experience using CRM platforms like HubSpot Experience with Looker Studio & PowerMyAnalytics / Supermetrics Experience in other Google Tools (Google Tag Manager, Search Console) SEO – an understanding of the fundamentals of search engine optimisation (SEO). Experience in B2B, SaaS or Tech More ❯

Lead Data Scientist Hybrid - London 1 day per week Up to £85,000 About the Role We are working with a high-growth performance marketing and technology company who are looking for a new Lead Data Scientist to join the team. You'll be working at the intersection of data, technology, and marketing, you’ll lead … Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients. Initially hands-on, this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists … analytics tools. Demonstrated experience across key use cases such as: Customer Lifetime Value (CLV) modelling Propensity scoring and lead prioritisation Budget allocation and bidding optimisation Experimentation, A / B testing, causal inference, MMM Advanced analytics (e.g. marginal returns curves, supply-demand modelling) Strong communication skills with the ability to simplify complex technical concepts More ❯

Lead Data Scientist Hybrid - London 1 day per week Up to £85,000 About the Role We are working with a high-growth performance marketing and technology company who are looking for a new Lead Data Scientist to join the team. You'll be working at the intersection of data, technology, and marketing, you’ll lead … Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients. Initially hands-on, this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists … analytics tools. Demonstrated experience across key use cases such as: Customer Lifetime Value (CLV) modelling Propensity scoring and lead prioritisation Budget allocation and bidding optimisation Experimentation, A / B testing, causal inference, MMM Advanced analytics (e.g. marginal returns curves, supply-demand modelling) Strong communication skills with the ability to simplify complex technical concepts More ❯

and repeat business from our travelers and partners. We partner closely with teams across Expedia Group to achieve growth and results for our customers and company. Are you a multi-disciplinary designer who thrives at the intersection of strategy, craft, and technology? Do you want to shape end-to-end experiences that help millions of people explore and … Preferred Qualifications: Knowledge of accessibility standards and inclusive design practices. Familiarity with front-end development technologies (HTML, CSS, JavaScript). Experience with data-driven design and A / B testing. Strong prototyping skills using tools like Figma or code-based approaches. Expedia Group is proud to offer a wide range of benefits to … support employees and their families, including medical / dental / vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits. More ❯

and repeat business from our travelers and partners. We partner closely with teams across Expedia Group to achieve growth and results for our customers and company. Are you a multi-disciplinary designer who thrives at the intersection of strategy, craft, and technology? Do you want to shape end-to-end experiences that help millions of people explore and … Preferred Qualifications: Knowledge of accessibility standards and inclusive design practices. Familiarity with front-end development technologies (HTML, CSS, JavaScript). Experience with data-driven design and A / B testing. Strong prototyping skills using tools like Figma or code-based approaches. Expedia Group is proud to offer a wide range of benefits to … support employees and their families, including medical / dental / vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits. More ❯

and repeat business from our travelers and partners. We partner closely with teams across Expedia Group to achieve growth and results for our customers and company. Are you a multi-disciplinary designer who thrives at the intersection of strategy, craft, and technology? Do you want to shape end-to-end experiences that help millions of people explore and … Preferred Qualifications: Knowledge of accessibility standards and inclusive design practices. Familiarity with front-end development technologies (HTML, CSS, JavaScript). Experience with data-driven design and A / B testing. Strong prototyping skills using tools like Figma or code-based approaches. Expedia Group is proud to offer a wide range of benefits to … support employees and their families, including medical / dental / vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits. More ❯

and repeat business from our travelers and partners. We partner closely with teams across Expedia Group to achieve growth and results for our customers and company. Are you a multi-disciplinary designer who thrives at the intersection of strategy, craft, and technology? Do you want to shape end-to-end experiences that help millions of people explore and … Preferred Qualifications: Knowledge of accessibility standards and inclusive design practices. Familiarity with front-end development technologies (HTML, CSS, JavaScript). Experience with data-driven design and A / B testing. Strong prototyping skills using tools like Figma or code-based approaches. Expedia Group is proud to offer a wide range of benefits to … support employees and their families, including medical / dental / vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits. More ❯

and CRO. · Work hand-in-hand with our creative, marketing, ops, and retail teams to ensure a joinedup, best-in-class brand experience. · Implement A / B tests, UX improvements, mobile optimisation, and SEO enhancements with a clear focus on performance. Performance & Growth · Partner with digital agencies to drive customer acquisition … your sleeves to make things happen. · An effective collaborator who thrives in cross-functional teams and brings out the best in others. Your Toolkit · Proven track record scaling premium / luxury digital retail operations. · Strong grasp of performance marketing (Google Ads, Meta, Pinterest) and SEO best practices. · Experience managing organic social, content planning, and digital brand storytelling. · Confident with … GA4, Shopify Analytics, heatmapping tools, and CRM / data platforms. · Knowledge of internationalisation, localisation, and global fulfilment strategies. Your Success Will Be Measured By · Revenue growth and profitability (CM3) of e-commerce. · Customer acquisition and lifetime value. · Growth of organic reach - SEO, social, and database expansion. · Improvement of key UX and retention metrics. WHY DRAKE’S? Drake’s is More ❯

and CRO. · Work hand-in-hand with our creative, marketing, ops, and retail teams to ensure a joinedup, best-in-class brand experience. · Implement A / B tests, UX improvements, mobile optimisation, and SEO enhancements with a clear focus on performance. Performance & Growth · Partner with digital agencies to drive customer acquisition … your sleeves to make things happen. · An effective collaborator who thrives in cross-functional teams and brings out the best in others. Your Toolkit · Proven track record scaling premium / luxury digital retail operations. · Strong grasp of performance marketing (Google Ads, Meta, Pinterest) and SEO best practices. · Experience managing organic social, content planning, and digital brand storytelling. · Confident with … GA4, Shopify Analytics, heatmapping tools, and CRM / data platforms. · Knowledge of internationalisation, localisation, and global fulfilment strategies. Your Success Will Be Measured By · Revenue growth and profitability (CM3) of e-commerce. · Customer acquisition and lifetime value. · Growth of organic reach - SEO, social, and database expansion. · Improvement of key UX and retention metrics. WHY DRAKE’S? Drake’s is More ❯

Senior Data Scientist Hybrid - London 1 day per week Up to £80,000 About the Role We are working with a high-growth performance marketing and technology company who are looking for a new Senior Data Scientist to join the team. You'll be working at the intersection of data, technology, and marketing, you’ll lead … Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients. Initially hands-on, this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists … analytics tools. Demonstrated experience across key use cases such as: Customer Lifetime Value (CLV) modelling Propensity scoring and lead prioritisation Budget allocation and bidding optimisation Experimentation, A / B testing, causal inference, MMM Advanced analytics (e.g. marginal returns curves, supply-demand modelling) Strong communication skills with the ability to simplify complex technical concepts More ❯

Senior Data Scientist Hybrid - London 1 day per week Up to £80,000 About the Role We are working with a high-growth performance marketing and technology company who are looking for a new Senior Data Scientist to join the team. You'll be working at the intersection of data, technology, and marketing, you’ll lead … Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients. Initially hands-on, this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists … analytics tools. Demonstrated experience across key use cases such as: Customer Lifetime Value (CLV) modelling Propensity scoring and lead prioritisation Budget allocation and bidding optimisation Experimentation, A / B testing, causal inference, MMM Advanced analytics (e.g. marginal returns curves, supply-demand modelling) Strong communication skills with the ability to simplify complex technical concepts More ❯