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Sainsbury's

Fullstack Engineer

City of London
Posted about 17 hours ago
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Sainsburys Tech – Full Stack Engineer

London, London, United Kingdom

We’re proud to work with one of the most exciting data sets in the UK. Our massive datasets, comprising billions of data points from diverse sources across the retail landscape, drive machine learning models that enhance personalisation and product recommendations. This work directly impacts millions of customers daily. In our inclusive, agile environment, you’ll have the freedom to explore, experiment, and solve real-world challenges—seeing your creations in the hands of millions across the UK.

Why join us

You’ll be part of one of our Engineering squads working on Ad-tech, interpreting and following architectural and engineering principles, operating frameworks, and new and improved technology and solutions. With your technical craft, curiosity and experimentation, you’ll use judgement to apply specific techniques to deliver focused outcomes that support our customers.

We use a variety of tech here and you need to be willing to pick up new tools and techniques. We’d also like you to be yourself - analytical, curious and unafraid to challenge the status quo. You’ll constantly strive to improve the way things are done in your team, contributing as a progressive member of the engineering community.

About the role

  • Build UI components and, sometimes, whole user routes from Figma designs, in React.
  • Write Typescript on the website’s front-end, back-end and in-between: full stack
  • CSS-style the UI’s using Tailwind and CSS Modules, while harnessing design tokens.
  • Actively contribute to developing large-scale services for optimal performance, utilising technologies like Node.JS, Typescript, Mongo DB, Postgres, SQL, AWS Lambda, GraphQL and Serverless framework. This extends to microservices and event-driven architecture.
  • Be proficient in unit testing (TDD), end-to-end testing and best practices.
  • Collaboratively contribute to the design and support of services and internal frameworks
  • Actively participate in research, scoping, and planning activities led by engineering and product managers for the development of new domain and platform capabilities.
  • Troubleshoot and resolve issues in production web applications, databases, services, and related components.
  • Actively participate in the support rota, providing timely assistance to ensure system reliability.
  • Foster team growth and development by providing support and mentorship to teammates, both through collaborative efforts, direct pair programming sessions and PR reviews
  • Familiar with trunk-based development and CI/CD pipelines using GitHub actions

Our tech stack:

  • JavaScript/Typescript - especially Winston and package management (using npm)
  • Frontend: React
  • Backend: AWS Lambdas
  • AWS
    • Lambda
    • SQS
    • SNS
    • IAM
    • SES
    • Cloudwatch
    • Cloudfront
    • Secrets Manager
  • GraphQL
  • MongoDB
  • Serverless Framework & Terraform
  • New Relic

Essential Criteria

To be considered for this role, you should possess industrial experience and have a strong passion for working with:

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

See breakdown
Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

See breakdown
Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

  • Relevant degree or equivalent qualification
  • Well-versed writing, maintaining and reviewing TypeScript code at production
  • Serverless infrastructure and AWS eco system
  • Modern React with hooks, experience writing unit tests (Vitest, RTL) for components
  • Modern CSS styling: Tailwind, CSS Modules, style-dictionary and design tokens
  • Redux experience is valued but not required - we use React Query
  • Writing and maintaining E2E on Playwright (but Cypress experience will be counted too)
  • Extensive experience in developing and utilising enterprise APIs.
  • Proficiency in SQL and NoSQL databases.
  • Customer-focused, owning the entire SDLC, and embodying DevOps principles.
  • Proven experience in software design and implementation, security, cloud infrastructure & monitoring CI/CD.
  • Enthusiastic about continuous learning, especially in emerging tech.

What I need to show

  • A positive approach to change
  • A solution-focused mindset with creativity and adaptability
  • Good communication skills and the ability to navigate complex corporate governance environments
  • Attention to detail

While not mandatory, having the following qualifications can give you a competitive edge

  • Proficiency in AWS (AWS Certification is a plus)
  • Competence in Terraform
  • Exposure in event-driven architectures is a plus.

Benefits

As well as lots of on-the-job training and endless opportunities, you’ll get:

  • Colleague discount across our multi-brands – Sainsbury’s, Argos, Tu and Habitat, plus:
  • Holiday allowance
  • Bonus scheme
  • Pension plan
  • Special offers on gym memberships, restaurants, holidays, retail vouchers and more

Work-life balance is important to us, so we offer our colleagues as much flexibility as possible in line with the needs of their role. We trust them to decide how, where and when they work, combining remote and collaborative working with a flexible approach to hours, giving them plenty of time and space for life outside of work whilst delivering against our business goals.

We are committed to being a truly inclusive retailer, so you’ll be welcomed whoever you are and wherever you work. Around here, there’s always the chance to try something new—whether that’s as part of an evolving team or somewhere else across the business - and we take development seriously and promise to support you. We also recognise and celebrate colleagues when they go the extra mile and, where possible, offer flexible working. When you join our team, we’ll also offer you an amazing range of benefits. Here are some of them:

Starting off with colleague discount, you'll be able to get 10% off at Sainsbury’s, Argos, TU and Habitat after 4 weeks. This increases to 15% off at Sainsbury’s every Friday and Saturday. We've also got you covered for your future with our pensions scheme and life cover. You'll also be able to share in our success as you may be eligible for a performance-related bonus of up to 10% of salary, depending on how we perform.

Your wellbeing is important to us too. You'll receive an annual holiday allowance, and you can buy additional holiday. We also offer other benefits that will help your money go further such as season ticket loans, cycle to work scheme, health cash plans, pay advance (where you can access some of your pay before pay day) as well access to a great range of discounts from hundreds of other retailers. And if you ever need it there is also an employee assistance programme.

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Moments that matter are as important to us as they are to you which is why we give up to 26 weeks’ pay for maternity or adoption leave and up to 4 weeks’ pay for paternity leave.

RESPONSIBILITIES

We’d all like amazing work to do, and real work-life balance. That’s waiting for you at Sainsbury’s. Think about the scale it takes to feed the nation. The level of data, transactions and variety involved. Then you’ll realise this is a modern software engineering environment, because it has to be. We’ve made significant investment in the standards and principles that shape how we work. We iterate, learn, experiment and champion ways of working such as Agile, Scrum and XP. So you can look forward to exciting opportunities across everything from AI to reusable tech.

QUALIFICATIONS

"We are committed to being a truly inclusive retailer, so you’ll be welcomed whoever you are and wherever you work. Around here, there’s always the chance to try something new—whether that’s as part of an evolving team or somewhere else across the business - and we take development seriously and promise to support you. We also recognise and celebrate colleagues when they go the extra mile and, where possible, offer flexible working. When you join our team, we’ll also offer you an amazing range of benefits. Here are some of them: Starting off with colleague discount, you'll be able to get 10% off at Sainsbury’s, Argos, TU and Habitat after 4 weeks. This increases to 15% off at Sainsbury’s every Friday and Saturday and 15% off at Argos every pay day. We've also got you covered for your future with our pensions scheme and life cover. You'll also be able to share in our success as you may be eligible for a performance-related bonus of up to 10% of salary, depending on how we perform. Your wellbeing is important to us too. You'll receive an annual holiday allowance, and you can buy additional holiday. We also offer other benefits that will help your money go further such as season ticket loans, cycle to work scheme, health cash plans, pay advance (where you can access some of your pay before pay day) as well access to a great range of discounts from hundreds of other retailers. And if you ever need it there is also an employee assistance programme. Moments that matter are as important to us as they are to you which is why we give up to 26 weeks’ pay for maternity or adoption leave and up to 4 weeks’ pay for paternity leave. Please see www.sainsburys.jobs for a range of our benefits (note, length of service and eligibility criteria may apply)."

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Skills

React
TypeScript
Node.js
AWS
GraphQL
MongoDB
Postgres
SQL
Tailwind CSS
Serverless framework
Terraform
CI/CD
TDD
Playwright
Microservices
Event-driven architecture

Location

Unit 1 and 2, 33 Charterhouse St, London EC1M 6HJ, UK

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