Frontend Developer

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 for us to feed the nation. The level of data, transactions and variety it involves. Then you’ll realise that ours is a modern software engineering environment because it has to be. We’ve made serious investment into a Tech Academy and into setting standards and principles. We iterate, learn, experiment and push ways of working such as Agile, Scrum and XP. So you can look forward to awesome opportunities in everything from AI to reusable tech.

Sainsburys Tech - Frontend Engineer

Why join us

We think we’ve got the most exciting data set in the country — thanks to over 1.2 billion transactions per year. For you, it means the chance to solve real-world problems and see your creations in the hands of millions of people across the UK. As a Frontend Engineer, you’ll create great products by interpreting and following best practice architectural and engineering principles, operating frameworks, and new and improved tech applications and solutions. You’ll also have the chance to be yourself – analytical, curious and unafraid to learn new skills or challenge the status quo. You’ll always look to improve the way things are done in your team, too.

What you'll do

You’ll own the design and development of high performance, user-friendly web frontends using technologies such as react.js, redux and typescript.

You’ll also contribute to our product technical roadmap, and work with cloud and container technologies like Kubernetes on AWS, Azure and Google Cloud Platform. In addition, you’ll lead the design and support of services and internal frameworks that enhance Sainsbury’s Group capabilities.

Taking on engineering throughout the whole product lifecycle, including decommissioning, you’ll take time to think about the cost and service support implications of your engineering choices.

• Work on essential cross-brand website UI components across browse, search and product description web pages, used by millions of customers per week.
• Tread the line between delivering quickly and building sustainable code using Github Action CI/CD pipelines for deployments and applying BDD and TDD using UI level testing frameworks.  
• Collaborate with your team and other teams to drive new features, improve performance and user experience in all parts of the website journey.
• Build our next generation of performant services and applications with Typescript, React, server-side rendered components and Next.js. 

Who you are

You’ll have programming expertise in Javascript, ReactJS, Node.js and your knowledge of engineering practice will cover architectural principles. Experience of software design and implementation, security, cloud, infrastructure as code and CI/CD and relevant hardware will be key.

Essential

• Solid JavaScript engineering and coding skills 
• Good practical knowledge of React, React patterns and best practices  
• Unit, integration and end to end testing with a variety of frameworks and tools 
• Good understanding of modern responsive UI web design and development, CSS styling, cross browser support, page performance, SEO optimisation and accessibility.   
• Familiar with agile software development
• Concisely able to write and maintain technical documentation 
• Good communication skills 
• An eye for great customer experience and delivery 

Desirable

• Typescript 
• Next.js 
• Redux, Redux toolkit 
• Building high availability, performant enterprise javascript/Typescript applications 

We’ll also look for self-drive