.Net Engineer - Retail (AR)

About the Role

We’re looking for a talented .NET Engineer to help design, build and deliver high‑performing technology that improves customer experience, drives business efficiency and reduces operating costs.

You’ll bring curiosity, analytical thinking and a willingness to challenge how things are done — always looking for ways to improve engineering practices within your team.

What You’ll Do

• Design and build large‑scale, high‑performance services using the latest technologies and engineering standards.
• Work with technologies such as React.js, SQL, MongoDB, Kubernetes, Docker, serverless functions and event‑driven architecture.
• Implement and enhance cloud-based solutions across AWS and Google Cloud Platform.
• Contribute to the technical roadmap, shaping the long‑term architecture and engineering strategy.
• Support internal frameworks and services that improve capability across the wider organisation.
• Share knowledge, contribute to best practices and enable continuous improvement within the engineering community.

Who You Are

You’re a proactive, driven engineer who is passionate about modern engineering practices, cloud technology and delivering high‑quality solutions. You promote agile ways of working and enjoy solving complex problems in a collaborative environment.

Essential Criteria

• Strong experience in .NET development and associated engineering principles.
• Proficiency with relational and non‑relational databases (e.g., SQL, MongoDB).
• Experience working with cloud platforms (AWS and/or Google Cloud Platform).
• Knowledge of React.js and modern frontend development standards.
• Experience with Docker, Kubernetes, and container orchestration.
• Understanding of serverless functions and event‑driven architecture.
• Solid understanding of software design, security principles, and DevSecOps practices.
• Hands-on experience with CI/CD pipelines and infrastructure-as-code.
• Ways of Working
• Strong advocate for agile/lean delivery methodologies.
• Ability to collaborate effectively across multidisciplinary teams.
• Self-driven mindset with a passion for continuous learning and innovation.

What’s in It for You

Colleague discount across Sainsbury’s, Argos and Habitat

Competitive holiday allowance

Bonus scheme

Pension plan

Flexible / smarter working policy

Access to a wide range of discounts (gyms, restaurants, retail and more)

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.

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: