201 to 225 of 390 Permanent A/B Testing Jobs

Senior AI/ML engineer

Location
Greater London, England, United Kingdom
work with the Judge-as-a-Service ecosystem to keep outputs safe and high quality Experimentation: help enable A / B testing for model and prompt changes, using evaluation gates to ship safely and measure impact Data and evaluation: contribute … generation, golden test sets, and evaluation dataset design that supports the features you’re building Infrastructure: contribute to Databricks, AWS (EKS), Terraform, or CI / CD work as initiatives require it Cross-functional impact: collaborate with Product, Security, Analytics, and Medical teams, and engage with technology partners (Databricks, Google ...

Senior Data Scientist - AI & Machine Learning

Location
Welwyn, England, United Kingdom
healthcare challenges. Build Scalable Pipelines: Partner with data engineers and global IT teams to ensure AI solutions are scalable, secure, and integrated with CI / CD and MLOps standards. Bridge Tech and Strategy: Translate complex algorithmic outputs and statistical concepts into clear, high-impact business strategies for senior stakeholders. … machine learning models in Python, SQL, and modern AI frameworks. Advanced Causal Inference & Modeling: Proven expertise in causal inference techniques (e.g., A / B testing, propensity score matching, synthetic controls) to isolate and measure true incremental business impact. Cross-Functional Leadership: Demonstrated ability ...

Senior Lead Machine Learning Engineer

Location
Greater London, England, United Kingdom
designs, and driving technical direction.MLOps, Deployment & Operations* Deep hands-on experience with SageMaker Pipelines, Training, Processing, Model Registry, Endpoints, Monitoring, and deployment workflows.* CI / CD, infrastructure as code, model lifecycle management, and automated retraining.* Observability, drift detection, experimentation, and performance engineering.* Multi-account AWS deployments and cross-account … 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.## Nice to Have* Background in ranking, search relevance, entity matching ...

Principal Product Manager

Location
Greater London, England, United Kingdom
scaling Agile product teams across multiple concurrent products or programmes. Deep expertise in data-driven product decision‐making, including user research, A / B testing, product analytics, and market analysis to inform strategic priorities. Strong working knowledge of Design Thinking and modern … autonomously at a strategic level, shaping the product agenda and rallying teams around a shared vision *Salary London £120,000 / Porto 100,000 EUR Per Annum* #J-18808-Ljbffr ...

Applied Researcher, Generative AI

Hiring Organisation
eBay
Location
Amsterdam, Noord-Holland, Netherlands
Employment Type
Permanent
Salary
EUR Annual
engineers to prototype, evaluate, and productionize AI models that personalize shopping experiences. You will work with large multimodal data and cutting-edge ML / NLP techniques to impact how millions of users discover and buy products. This is your opportunity to shape the future of recommender technology and contribute … recommender systems and AI techniques and their deployment Work with large unstructured multimodal data representing inventory and users Drive iterative A / B testing to improve marketplace engagement andGMV Publish or share findings through blogs or papers (preferred) Belangrijkste vereisten MS / ...

Machine Learning Engineer - Agents

Hiring Organisation
eBay
Location
Amsterdam, Noord-Holland, Netherlands
Employment Type
Permanent
Salary
EUR Annual
coordinate and reason about user intents. You will tackle latency, safety, and cost challenges in autonomous systems and measure impact through A / B testing on marketplace metrics. This is a mission-driven opportunity to push the frontier … translate research into scalable product features Belangrijkste vereisten MS in Computer Science or related area (or equivalent) 5+ years of experience in Machine Learning / AI / ML Engineering Experience researching / building systems with multiple agents interacting and coordinating Strong programming experience in Python; practical experience ...

Principal Data Scientist, Experimentation

Location
Greater London, England, United Kingdom
content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. At Tripadvisor experiences, the only thing we love more than travel is data. … outcomes that matter take months to appear. You will: Set the technical standard for experimentation across Product Data Science, from conventional A / B testing to quasi-experimental and Bayesian methods, and make it practical through protocols, frameworks and tooling. Partner with Product ...

Sr. Solutions Consultant

Location
United Kingdom
world’s leading nonprofits, including UNICEF, the Alzheimer’s Association, and a wide range of global NGOs. With a 4.9 / 5 rating across top software review platforms, we’re recognized not just for our impact - but for the quality of the product we deliver. … audiences. Build solution architectures, data mapping, and integration plans across our partner ecosystem (Salesforce, HubSpot, Stripe, PayPal, Zapier). Lead technical input on RFP / RFI responses, ensuring accuracy against compliance standards such as PCI DSS and GDPR. Feed client and market insight back to Solution Architecture and Product ...

Software Engineer, England

Location
Leeds, England, United Kingdom
applications (Java strongly preferred) Experience with Spring Boot Microservices framework, and JPA is strongly preferred Familiar with web‐related technologies (e.g. HTTP, REST, TCP / IP). Familiar with version control tools (e.g. Git, SVN). Familiar with UML, OOP, and design patterns. Familiar with AWS services and / … GCP. Proficiency with distributed caching and message‐oriented middleware (e.g., Kafka). Experience with Docker and Kubernetes. Experience running experiments, A / B testing and optimizing for business outcomes. Able to effectively communicate complex technical subjects to a variety of audiences ...

Engineering Manager

Location
Greater London, England, United Kingdom
a mission to make good health last a lifetime. More than 1 billion people live with obesity worldwide, driving preventable chronic conditions. We're here to build better long-term care. Eucalyptus is now part of Hims & Hers, the global leader in personalised health and wellness. … driving continuous improvements across team workflows and structures. Experimentation & Growth Mindset: Hands-on background or strong familiarity with rapid experimentation, A / B testing, and building software optimised for user engagement, conversion, and retention. People-First Leadership: Skilled at mentoring engineers, navigating shifting ...

Product Owner – Web Platform & Apps

Location
Leyland, England, United Kingdom
Experience & Skills eCommerce Proven Track Record: Strong experience as a Product Owner in a fast-paced, high-transaction digital / eCommerce environment spanning web and mobile apps. Technical Confidence: Comfortable collaborating closely with engineering teams—capable of understanding and discussing APIs, backend services, data flows … third-party integrations. Commercial & Analytical Acumen: Experience using customer behaviour data, conversion funnel metrics, and experimentation (A / B testing) to inform roadmap priorities. Senior Stakeholder Management: Confident communicating with senior leadership, constructively challenging assumptions, and managing expectations to reach alignment. Personal Traits ...

Senior Data Scientist

Location
Greater London, England, United Kingdom
provides seamless rail travel solutions for businesses, travel retailers, and rail carriers across the UK and Europe. TPS also works to develop new technologies / products and is at the forefront of the rail industry, presenting opportunities to launch new products, work to develop product market … decision making while keeping the team accountable and impactful Define focus through metrics to enable a broad spectrum of learning from experimentation / release cycles. We'd love to hear from you if you have 5+ years commercial experience using data science and analytics to drive business ...

Product Designer

Location
Tunbridge Wells, England, United Kingdom
user research to identify pain points and find opportunities to improve the user journey. Use testing methods like A / B testing and agile ways of working to try new ideas, considering SEO, branding, and marketing. Prioritise features and improvements based … industry events. We’re also happy to consider flexible working arrangements, which you can discuss with Talent Acquisition. Your skills & experience: Experience in UX / UI roles, with a proven track record of designing customer‐facing platforms within highly regulated sectors. Demonstrated ability to develop and implement ...

Staff Software Engineer - FMX

Location
Greater London, England, United Kingdom
systems, with particular attention to correctness in markets, orders, and transactions Guide the design of experimentation capabilities, including feature flags and A / B tests, so teams can validate ideas quickly and safely Anticipate scaling constraints, reliability risks, and technical debt; build alignment on pragmatic … Query, Tailwind, or Zustand; or deep backend experience with data modeling, distributed systems, and event‐driven architecture using technologies such as Postgres and Kafka / PubSub Deep knowledge of your primary language's features, idioms, and best practices, with experience establishing standards adopted beyond your immediate team Strong understanding ...

Principal Machine Learning Scientist (Experiences)

Location
Greater London, England, United Kingdom
coach senior and mid-level ML scientists. Foster a culture of technical excellence, driving best practices for MLOps, rigorous A / B testing, data privacy, and code quality. Skills & Experience: Education: Ph.D. or Master’s degree in Computer Science, Machine Learning … Technical Stack: Mastery of Python and deep learning frameworks (TensorFlow, PyTorch) alongside hands-on experience with distributed computing (Spark, Ray) and cloud infrastructure (AWS / GCP). Graph Neural Networks (GNNs): Strong experience applying GNNs, knowledge graphs, or graph embeddings to map complex relations between travel entities (e.g., users ...

Business Development & Marketing Executive

Location
Brighton, England, United Kingdom
Business Development & Marketing Executive Location: Fully Remote - UK based (flexible hours but expected to have availability during core office hours) Position: Fractional / Part-Time (this can be on an employment or self employed contract basis) Compensation: £30,000 Base Stipend + High-Upside Active Revenue Share … early wishlists before full production begins. Own the Steam Funnel: Completely manage our store presence, from tag optimization and capsule art A / B testing to navigating Steam Next Fests. Organic Content Creation: Cut gameplay clips and craft engaging, authentic short-form videos ...

Product Manager

Location
Greater London, England, United Kingdom
multiple priorities and dealing with ambiguity Exceptionally strong analytics skills, preferably using Adobe Analytics (Omniture) as well as other tools especially A / B testing Adept at communicating with developers, non-technical business partners and senior management stakeholders Excellent oral / written … a Kanban board; work to identify dependencies and align on priorities and against overall product roadmap Lead and collaborate with the UI / Design team and the product development team to come up with solutions that address user needs and add business value; or bring your ...

AI/ML Data Scientist

Location
Greater London, England, United Kingdom
backed by impact-focused VCs and supported by partners including UCL, Innovate UK, Microsoft, and Google. The role We're looking for an AI / ML Data Scientist to join our London team. You'll work directly alongside our founders and engineers who've previously built at Meta, Atlassian … test suites that let us ship model and prompt changes with confidence, and catch regressions before students do - Run experiments and A / B tests on live AI features, and make the call on what the results actually mean - Build and curate high-quality datasets ...

Senior Manager, MLE - Gen AI

Hiring Organisation
eBay
Location
Amsterdam, Noord-Holland, Netherlands
Employment Type
Permanent
Salary
EUR Annual
deploy state-of-the-art AI models Deploy big data technologies and large-scale data pipelines Drive marketplace GMV through iterative A / B testing Belangrijkste vereisten MS / PhD in Computer Science or related field with 8 years of experience … / BA with 10 years) People management experience leading 4+ member teams Experience leading ML / AI teams in a rapid, production-focused environment (Python, PyTorch) Experience with cloud services, big data pipelines and databases Experience in NLP and industrial recommender systems Experience in production engineering ...

Senior Architect – GCP , Gen AI & Agentic Systems

Location
West of England, England, United Kingdom
Senior Architect – GCP , Gen AI & Agentic Systems Contract | Test Triangle | United Kingdom Job Information Work Experience 5+ years Communications City City of Bristol State / Province County of Bristol BS0 Job Description LOCATION: Onsite (Bristol) Looking for an experienced Senior Architect to lead the design, architecture, governance, and delivery … enterprise-scale AI / ML and Generative AI solutions. The role requires deep expertise in LLMs, Agentic AI, NLP, RAG architectures, MLOps, and cloud-native AI platforms on Google Cloud Platform (GCP). The architect will be responsible for defining AI solution strategies, driving technical direction, establishing architecture standards ...

Senior Product Manager - Digital Experiences

Hiring Organisation
Jobot
Location
Plano, Texas, United States
Employment Type
Permanent
Salary
USD 150,000 Annual
Experience working within Agile development teams. Bachelor's degree or equivalent professional experience. Experience with digital checkout, loyalty programs, personalization, or A / B testing is a plus. Interested in hearing more? Easy Apply now by clicking the "Quick Apply" button. … which are available at By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and / or its agents and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed ...

Principal Machine Learning Engineer, Matching & Recommendations

Location
Greater London, England, United Kingdom
processing technologies such as Spark and Airflow with model training, evaluation, deployment and monitoring workflows. Define and evolve experimentation strategies, including A / B testing, offline evaluation and online measurement , to continuously improve model performance and product outcomes. Partner cross‐functionally with Product … hesitate to let us know how we can help. In your application, please feel free to note which pronouns you use (For example: she / her, he / him, they / them, etc). AI in Bumble Inc. Hiring At Bumble, we may use AI tools ...

Senior Backend Engineer - Revenue

Location
Greater London, England, United Kingdom
Head of Pricing to implement commercial initiatives and new pricing capabilities. Build reliable, scalable and observable systems using modern engineering practices, including CI / CD, automated testing and monitoring. Contribute to technical design, architecture discussions and peer reviews. Continuously improve the performance, scalability and resilience of revenue … backend services and REST APIs Strong SQL skills and experience working with relational databases Familiarity with AWS or similar cloud environments Experience with CI / CD pipelines and automated testing Strong understanding of software architecture, scalability and system design Excellent communication skills and the ability to explain ...

Localization Manager

Location
Greater London, England, United Kingdom
well here if you want to own outcomes end-to-end and can handle a vendor escalation and a go / no-go call on the same day. What You'll Do Own the lifecycle for your portfolio. From string freeze to general availability — initiation … workflows, keep handoffs clean between stakeholders, and maintain the assets that make repeatable launches possible: scoping models, timelines, locale-readiness checklists, go / no-go criteria. Keep your spend on track. The Localization Lead owns the budget; you look after your corner of it. Track translation costs per product ...

Applied Scientist (Marketplace)

Location
Greater London, England, United Kingdom
checking the logic and validating the output so errors are caught before they reach a stakeholder. Design and interpret A / B tests: set the success metrics, size the sample properly and call it when a result is underpowered rather than … meet you.) What you get Competitive salary, annual bonus & equity scheme Health, wellbeing and learning support Gym membership, Smart Tech Scheme, Cycle Scheme Birthday / special day leave, buy & sell holiday scheme 1 week's paid charity leave, and more About us We're Checkatrade - the UK's leading ...