Senior Engineer - AWS, Terraform, Docker, Python/PySpark, SQL, Snowflake, DBT

Location: Hybrid working London and Home

Why join us

We’re unlocking petabytes of untapped potential. We have thousands of shops, hundreds of thousands of colleagues, and millions of customers. Just imagine the data. We want to use it all to enable business decisions that can’t be made anywhere else. 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

As the central repository for sales data, we develop key business metrics for our data teams and business users to utilise in various critical discussions related to business strategies, campaigns, marketing initiatives, and workforce forecasting. This is achieved through the utilisation of cutting-edge technologies such as Snowflake, DBT, and other tools in the market space. These solutions enhance efficiency, accelerate data ingestion into our reporting platform, improve data quality, and guarantee data security and compliance.

We prioritise product development and data analysis, placing a strong emphasis on design and seeing projects through from start to end. This involves extensive coding, as well as implementing automation for tasks such as deployments(CICD) and testing (TDD). Additionally, we prioritise the use of DQ checks and Monitoring/ Alerting aspects to ensure the smooth operation of live applications. 

As a Senior Data Engineer, your role will be pivotal in collaborative design sessions and the creation of efficient pipelines using Snowflake, as well as establishing infrastructure in AWS to construct API services for data delivery to end users. Your deep understanding of technology and engineering principles will enable you to drive the product technical road map and contribute to optimising OPEX and CAPEX spend. 

As a role model for best practices, you will champion a customer-centric mindset, mentor other engineers, and support performance within the team. Your expertise in SQL and programming languages within our ecosystem, coupled with your passion for data and delivering solutions, continuous improvement, and staying updated with emerging technologies, will contribute to our mission of providing amazing shopping experiences for our millions of customers across the UK.

Who you are

You are an accomplished professional driven by a passion for data and for delivering cutting-edge technology solutions that elevate customer experiences and optimise business operations. With our extensive and intricate datasets, you have the opportunity to architect and develop large-scale pipelines in Snowflake and cloud-based API services to deliver data to end users using tools/languages like Snowflake, DBT, AWS, Terraform, Docker, SQL and Python/PySpark. Your expertise in programming languages within our ecosystem, deep knowledge of engineering and architectural principles, and strong understanding of software design and implementation make you a valuable asset to our engineering team. 

Thriving in dynamic, agile environments, you are committed to continuous improvement, championing best practices, and staying up to date with emerging technologies. Your drive, inquisitive nature, and customer-centric mindset empower you to mentor and support colleagues, fostering a culture of excellence and ensuring the delivery of top-notch products. Equally important is your background as a Data Engineer or in a related field, coupled with a dedication to implementing sound coding practices. 

Initiative and curiosity are going to be crucial, and you’ll also prefer to take ownership of your work so that you can see it through. Furthermore, as a data and engineering enthusiast, you're encouraged to share your perspectives and innovative ideas on both the areas — we love new thinking. 

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.

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 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).