Principal Product Designer

About the roleWe’re a confidential (NDA), AI‑first team inside Tesco, operating with startup urgency to create new customer growth. Expect end‑to‑end ownership—rapid experimentation, fast shipping, and leaning in wherever the work takes you, beyond your job title. If you’re ambitious, hard‑working, and excited to build 0→1 against tall ambitions, you’ll thrive here. Design end‑to‑end experiences that turn vision into shippable, accessible UI, power rapid experiments and customer validation, and partner with PM/Engineering/Data (leveraging AI) to drive Tesco customer growth.You will be responsible forOwn end-to-end experience design (UX, UI, service): define experience principles, map future-state journeys/service blueprints that unlock new Tesco customer growth.Translate vision into shippable UI: deliver accessible, high-quality interfaces and micro-interactions for MVPs and live trials, aligned to Tesco’s design system.Build rapid experiment collateral: clickable prototypes, flows, content/variant packs, and stimuli to enable weekly user tests, A/Bs, and in‑market experiments.Drive customer validation: plan/run research and usability, synthesize insights, and convert learnings into prioritized design decisions at speed.Collaborate for outcomes: partner with PM, Engineering, and Data/ML to leverage new AI capabilities, define hypotheses/metrics, iterate fast—and operate confidentially under NDA. As a small and focused team, we need all of our recruits to be excited by a team with a startup mindset -Bias to action: you move from idea to test to live quickly, and learn in the wild.Scrappy and resourceful: you ship with the tools to hand; progress over perfection.Customer‑obsessed: you validate with customers and let insight drive decisions.Ownership: you take responsibility for outcomes, not just tasks.Transparent communicator: you keep the team and stakeholders in the loop, early and often.AI‑forward: you use AI to accelerate research, synthesis, and delivery.You will needUX, UI, and service design across app, web, and in‑store journeysRetail/e‑commerceExperience working in a start-up / scale-up  Rapid prototyping and creating test collateral for weekly experimentsDesigning AI‑powered and personalized experiences in partnership with Data/MLDesign systems: building/extending components and tokens; aligning to enterprise systems (e.g., Tesco)Accessibility and inclusive design baked into deliveryMixed‑methods research and experiment designOperating under NDA with strong documentation and stakeholder storytellingInteraction design and prototypingCreation and implementation of design systemsAccessibility principles Operational ExperienceRun hypothesis-driven design sprints: plan weekly cycles, define testable bets, facilitate workshops and keep momentum high.Experiment ops: create test plans, recruit GDPR-compliant participants, manage incentives/scheduling, capture insights and playback to the wider team.Backlog and delivery: partner with PM on requirement gathering, discovery and prioritisationAI ops: use AI to generate variants, UX copy, and flows; document prompts and guardrails; sanity-check for bias/hallucinations.Compliance and privacy: operate under NDA; handle PII in research; align with GDPR and Tesco governance; raise DPIA needs when relevant.You excel in the core foundations of UX, UI & research from strategy to delivery, including but not limited to - UX design information architecture, wireframing and prototyping, usability evaluation, user-centred design, product methodologies, UX qual and quantBeware of Recruitment FraudWe never ask for money during our hiring process. Any request for payment made in the name of Tesco is not legitimate. Please report suspicious activity to candidatecare@tesco.comWhats in it for you?We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work. Click Here to find out more Annual bonus scheme of up to 45% of base salary Car Cash Allowance Holiday starting at 25 days plus a personal day (plus Bank holidays) Private medical insurance Retirement savings plan - save between 6% - 10% and Tesco will contribute 1.5 times this amount 26 weeks maternity and adoption leave (after 1 years’ service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leaveAbout UsYou might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues.At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support.We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. If you need support with your application, click here for more information. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying.