Principal Product Designer

Tesco UK; Greater London, Welwyn Garden City; Hybrid; GBP 40,000 - 60,000; Full time

Job summary

A leading retail and technology company in the UK seeks a skilled UX/UI Designer to join a dynamic team focused on customer growth. You will own the end-to-end design process, translate visions into accessible user interfaces, and validate designs through user research. The ideal candidate thrives in a startup-like environment, is customer-obsessed, and brings expertise in AI-enhanced experiences and prototyping. Join us to make a significant impact on our customers and the organization.

Benefits

Flexible working hours

Inclusive recruitment process

Supportive team culture

Qualifications

• Strong experience in UX, UI, and service design.
• Ability to create prototypes for rapid testing.
• Experience with customer research and validation.

Responsibilities

• Own end-to-end experience design for customer growth.
• Translate vision into high-quality UI for MVPs.
• Drive customer validation through research.

Skills

UX design

UI design

Prototyping

Customer validation

Accessibility design

Design thinking

Agile methodologies

Job description

We’re a new team 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.

• Own 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.

• UX, UI, and service design across app, web, and in‑store journeys
• Retail/e‑commerce
• Experience working in a start‑up / scale‑up
• Rapid prototyping and creating test collateral for weekly experiments
• Designing AI‑powered and personalized experiences in partnership with Data/ML
• Design systems: building/extending components and tokens; aligning to enterprise systems (e.g., Tesco)
• Accessibility and inclusive design baked into delivery
• Mixed‑methods research and experiment design
• Operating under NDA with strong documentation and stakeholder storytelling
• Interaction design and prototyping
• Creation and implementation of design systems
• Accessibility principles

Operational Experience

• Run 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 prioritisation
• AI 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 quant

Beware of Recruitment Fraud

We 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 [e-mail]

You 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.