Senior Frontend Software Engineer

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.

As our SDEIII you’ll drive fast, high-quality delivery today while architecting the path to scale tomorrow — integrating deeply with Tesco systems, partnering externally, and unblocking with creativity and pace to realise the team vision.

You will be responsible for:

As a Software Development Engineer 3 you are in a senior Individual Contributor engineering role at Tesco. Your proficiency with foundational computer science and software engineering concepts is taken as a given, and you will have proven significant technical depth and breadth.

- Ship high profile customer-facing UI experiences regularly; own design, build and release end-to-end across Tesco-owned surfaces and partner/embedded channels including chat and voice assistants

- Rapidly prototype and iterate on GenAI/agentic UX, accounting for channel-specific constraints

- Maximise Tesco’s design system and UI platform; integrate/extend conversational components; shape API contracts; design for headless/embeddable delivery (SDKs, web components).

- Partner with Enterprise Architecture to evolve a scalable, secure, reusable frontend platform and APIs that support multi‑channel distribution and real-time conversational needs

- Move at pace: unblock delivery, simplify complex UX/tech problems, and uphold quality via automated tests, performance budgets, and observability across browsers/devices/webviews.

- Partner across the Tesco engineering estate and with external partners to design clean integrations, automate E2E/contract testing, and establish repeatable CI/CD, release, and environment practices for web/mobile and embeddables.

- Exercise strong product and technical judgement—make pragmatic build‑vs‑buy and componentization decisions; champion accessibility, performance and security

- While your primary focus is frontend, you’ll frequently pair with backend and data/ML engineers to ship end‑to‑end outcomes; full‑stack experience (or a strong appetite to learn fast) is a big plus.

Mindset we hire for -

- 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

- Experimentation machine: hypothesis → smallest test → data → iteration is your default.

- 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.

- Resilient learner: you understand the value of failing, and bounce back quickly

- Corporate-savvy builder: you can deliver iterative value within a large organisation.

- AI‑forward: you use AI to accelerate research, synthesis, and delivery.

You will need:

JavaScript

TypeScript

React

Next.js

What's 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 20% of base salary
Holiday starting at 25 days plus a personal day (plus Bank holidays)
Private medical insurance
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 leave
Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing

About us:

Our vision at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is 'Serving our customers, communities and planet a little better every day'. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of and for the planet.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We're a big business with diverse working patterns and many business areas which means that we can find something that works for you. Everyone is welcome at Tesco.

We have recently announced that we will be moving towards a more blended working week – combining office and remote working. Our offices will continue to be where we connect, collaborate and innovate. Please talk to us to about how this can work for you.

NOTE: Should you be successful in your application, your offer will be subject to and conditional upon you providing your bank account details on your agreed start date.

We're proud to have been accredited Disability Confident Leader and we're committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please visit https://www.tesco-careers.com/accessibility