🚀 Senior Fullstack Engineer

Wed all like amazing work to do, and real work-life balance. Thats waiting for you at Sainsburys. Think about the scale it takes for us to feed the nation. The level of data, transactions and variety it involves. Then youll realise that ours is a modern software engineering environment because it has to be. Weve 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.
Senior Full Stack Engineer | Sainsbury's Tech
Youll 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, youll use judgement to apply specific techniques to deliver focused outcomes that support our customers.
Nectar and Nectar360 are a core part of Sainsburys Business Model, to deliver Loyalty and Rewards programme across Sainsburys and Coalition brands investing in what matters to Customers. Using our unmatched Nectar data-set and full encompassing media portfolio we create impactful and relevant customer experiences, connecting our brand partners to their customers.
As a Full Stack Senior Engineer, you will have the opportunity to create exceptional, high-performance products that deliver an amazing shopping experience to our customers. In an inclusive and agile environment, your curiosity and experimentation will be embraced, allowing you to tackle real-world challenges and see the impact of your work in the hands of millions of people across the UK.
About the role
As a Full Stack Senior Engineer, you will design and develop scalable, user-friendly web applications, developing Node.js services and React frontends. You'll work across the stack to ensure high performance, collaborating on both front-end and back-end architecture. Leading the design and support of services and internal frameworks that enhance Sainsbury's capabilities will be part of your role. Throughout the whole product lifecycle, including decommissioning, you will demonstrate engineering expertise, knowledge of engineering and architectural principles, and proven experience in software design and implementation, security, cloud, infrastructure as code, and CI/CD. Your drive for continuous improvement, advocacy of agile delivery methodologies, and passion for delivering solutions to customers will shine through in your work. You will display empathy and understanding in supporting your colleagues in the team to deliver, while also keeping yourself up to date with emerging technologies.
Collaboratively contribute to the design and support of services and internal frameworks.
Actively participate in research, scoping, and planning activities for the development of new domain and platform capabilities, working closely with engineering and product managers.
Drive the technical roadmap of the product by deeply understanding technology and broader roadmaps.
Lead the design and support of services and internal frameworks to enhance Sainsburys capabilities.
Guide, support, and enable performance within the squad by providing technical knowledge and ideas.
Remove technical blockers for fellow developers with their work by providing your support or connecting with the right people.
To be a role model that represents all the standards and principles by which developers need to work with
Analyse existing operations to identify risks and redundancies, and conduct comprehensive assessments to develop solutions
Mentor fellow engineers and promote the engineering community of practice through its program of events.
Essential Criteria
You are a highly skilled professional with expertise in designing and developing highly performant and user-friendly web frontends using technologies such as React.js, Redux, Redux Saga, and Typescript. With a strong background in programming languages like Node, JavaScript, React.JS, Java, SpringBoot, and Golang, you possess a deep understanding of engineering and architectural principles, enabling you to contribute to the product technical roadmap and implement cutting-edge cloud and container technologies. Your passion for continuous improvement, agile/lean delivery methodologies, and delivering solutions to customers drives you to constantly enhance your knowledge and explore emerging technologies. Your collaborative nature and commitment to the DevOps principles enable you to support and empower your colleagues in delivering exceptional results.
Commercial experience with Node JS ecosystem, including building REST, Typescript, Mono repositories, Github Actions, GraphQL, or tRPC APIs, and React with hooks.
Experience with AWS Lambda + Serverless, or similar technologies (Azure Functions, Google Functions, etc.).
Experience with NoSQL Databases, preferably Mongo Atlas.
Terraform experience is a plus.
Experience in software design, implementation, security, cloud, infrastructure as code, and CI/CD. Knowledge of relevant hardware is a plus.
Self-driven with a constant strive for improvement within your team, division, and peers.
Advocate for agile/lean delivery methodologies.
Passion for delivering solutions to customers, owning the whole SDLC, and following DevOps principles.
Passion for enhancing your knowledge and evidence curiosity 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
Benefits
As well as lots of on-the-job training and endless opportunities, youll get:
Colleague discount across our multi-brands Sainsburys, Argos, Tu and Habitat, plus:
Holiday allowance
Bonus scheme
Pension plan
Private HealthInsurance
We are committed to being a truly inclusive retailer, so youll be welcomed whoever you are and wherever you work. Around here, theres always the chance to try something new - whether thats 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, well 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 Sainsburys 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 20% 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, interest free car loan of up to 10k, 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, you will also be eligible for private healthcare too.
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 for a range of our benefits (note, length of service and eligibility criteria may apply).