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Java Engineer

Sainsbury's -
London

Apply Now

Job details

Permanent

Benefits

Company pension
Employee discount

Qualifications

Spring Boot
Cloud infrastructure
Azure
Kubernetes
Test-driven development
Google Cloud Platform
Java
Microservices
AWS
Unit testing
Maven
Spring framework

Full job description

Java Engineer

Salary: Competitive Plus Benefits
Location: London Store Support Centre and Home, London, EC1M 6HA
Contract type: Permanent
Business area: Sainsbury's Tech
Closing date: 23 July 2026
Requisition ID: 400023718

We don’t think we’re exaggerating when we say we have one of the most exciting data sets in the country. The insights we gain help us build scalable, high‑performance products using cutting‑edge technology—products that give our customers an amazing shopping experience, including our award‑winning Smartshop app.

In an inclusive, agile environment, you’ll have the space to be curious, to experiment, and to solve real‑world challenges. Best of all, you’ll see your work in the hands of millions of people across the UK.

As a Java Engineer, you’ll join one of our Engineering teams to create exceptional products aligned to best‑practice architectural and engineering principles. Working with Java (17+) and modern frameworks like Spring Boot and Maven, you’ll design and develop large‑scale, high‑performance services across websites, apps, microservices, and event‑driven architectures.

We want you to bring your whole self to work—be analytical, curious, and ready to challenge the status quo. You’ll be a key contributor to continuous improvement within your team and the wider engineering community.

What You’ll Do

Design and develop large‑scale, high‑performance services using Java (17+), Spring Boot, Maven, and related tools.
Build and enhance websites, apps, microservices, and event‑driven architectures.
Contribute to the product technical roadmap.
Work with cloud and container technologies, including Kubernetes on AWS, Azure, or Google Cloud Platform.
Lead the design and support of internal frameworks that enhance wider engineering capabilities.
Engineer across the full product lifecycle, including decommissioning.
Consider cost, scalability, and support implications in all engineering decisions.

Essential Criteria

Strong expertise in Java and Spring Boot.
Solid understanding of engineering and architectural principles, including unit testing and TDD.
Proven experience in software design and implementation across security, cloud, infrastructure as code, and CI/CD.
Experience working with microservices and event‑driven systems.
Knowledge of cloud platforms (AWS, Azure, or GCP) and containerisation (Kubernetes).
Strong self‑drive and commitment to improving processes, teams, and engineering communities.
Advocacy for Agile and Lean delivery methodologies.
Passion for delivering customer‑focused solutions and owning the full SDLC following DevSecOps principles.
Curiosity and a genuine interest in emerging technologies.
Empathy, teamwork, and the ability to support others in delivering high‑quality outcomes.

Benefits

Generous colleague discount across Sainsbury’s, Argos, and Habitat.
Competitive holiday allowance.
Bonus scheme.
Pension plan.
Flexible / smarter working policy.
Access to special offers on gyms, restaurants, holidays, retail vouchers and more.

Work-life balance matters to us. We offer flexibility in how, when, and where you work—combining remote collaboration with the right balance of freedom to support your life outside work.

Apply Now

Refine Your Search

j sainsbury plc. jobs in london, eng

Java Engineer

Trading Assistant - Local

Nectar360 - Insight Consultant - 12M FTC

Oracle Functional SME v12.1.3 - Finance (12M FTC)

Finance Analyst - Marketing (12M FTC)

Engineer

Business Process Analyst

Value & Pricing Analyst

Range Merchandiser - Dairy (12m FTC)

Online Assistant

Supplier Analytics Analyst

Midweight Designer, 4-month FTC

Customer and Trading Manager - Nightshift

Product Developer - General Merchandise

Buyer - Clothing

Analytics Manager, DMCA

Customer and Trading Manager - Online

Delivery Lead - Digital

Stores People Partner - Maidstone/Rochester/Folkestone

Tech Enablement & Change Lead

I want to receive the latest job alerts for j sainsbury plc. in london, eng

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Java Engineer

Salary: Competitive Plus Benefits
Location: London Store Support Centre and Home, London, EC1M 6HA
Contract type: Permanent
Business area: Sainsbury's Tech
Closing date: 23 July 2026
Requisition ID: 400023718

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j sainsbury plc. jobs in london, eng

I want to receive the latest job alerts for j sainsbury plc. in london, eng

Related Searches

Explore jobs in more locations

Java Engineer

Salary: Competitive Plus Benefits Location: London Store Support Centre and Home, London, EC1M 6HA Contract type: Permanent Business area: Sainsbury's Tech Closing date: 23 July 2026 Requisition ID: 400023718

Salary: Competitive Plus Benefits
Location: London Store Support Centre and Home, London, EC1M 6HA
Contract type: Permanent
Business area: Sainsbury's Tech
Closing date: 23 July 2026
Requisition ID: 400023718