Data Scientist - Python, SQL, AI and ML
On site
London, United Kingdom
Full Time
20-03-2025
Job Specifications
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.
What You'll Do
As a Data Scientist and member of our Data Science team, you will play a pivotal role in developing in-house data science solutions that automate decision-making and provide valuable insights across our business. Working in cross-functional agile squads, you will contribute to the design and development of our data science products. You will deliver high-quality analyses that guide future development work and contribute to the team's continuous learning and upskilling efforts.
Why join us
Wide impact. Deploying models here means improving the experience of millions of customers each day.
Range of projects. Our projects vary from supply chain optimisation for Argos, predicting which substitution products online shoppers prefer, to helping our Sainsburys colleagues keep shelves full.
Focus on data science work. Access to extensive, clean, and well-documented data in our industry-leading platform: spend your time building data science solutions, not cleaning datasets.
Time for growth. 10% of time set aside for learning & personal development.
Learning and mentoring. With a team of 50 data scientists, engineers and product managers, there are lots of opportunities to learn from colleagues through knowledge shares, pair programming, and communities of practice.
Flexible working. Our team prioritizes hybrid working, both at home and in our central London Holborn office.
Save on groceries. 10% discount on products across Sainsburys and Argos (Up to 15% for two days each week!)
Join us and be part of a team that encourages innovation, values your expertise, and prioritises work-life balance while delivering exceptional results.
What you need to excel in this role:
Essential:
Educated to degree level, preferably within a mathematical, statistical or STEM discipline.
At least 2-3 years’ experience in a Data Science role, using Python and SQL to deliver ML solutions in a corporate environment.
You have experience of writing production grade code, as some of our systems involve real-time inference that affect millions of customer transactions.
Strong presentation skills and business acumen, you regularly receive positive feedback about your ability to explain complex topics to non-technical audiences.
You can feel comfortable working independently to achieve results using your own guidance and initiative.
Strong statistical foundation in concepts such as regression, hypothesis testing, experimental design.
Highly proficient in Git best practices.
Desirable:
A relevant Post-graduate degree (Masters or PhD) within a mathematical, statistical or other STEM discipline.
Experience delivering value on ML projects in retail (in areas such as price elasticity or differential pricing) or supply chain (demand forecasting, optimisation).
Our products rely heavily on mathematical optimisation, so experience in this area is highly desirable.
Experience working with and applying causal inference.
Experience working with and deploying Graphical Neural Networks [GNNs] in industry.
Experience working within in a cross functional team.
Some of the other benefits Sainsburys provide:
25 days holiday per year, with the option to buy up to an additional weeks holiday.
Up to 26 weeks’ pay for maternity or adoption leave and up to 4 weeks’ pay for paternity leave.
Up to 10% bonus based on performance.
Cycle to work scheme.
Please see www.sainsburys.jobs for a range of our benefits (note, length of service and eligibility criteria may apply).
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 10% 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, 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.
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 www.sainsburys.jobs for a range of our benefits (note, length of service and eligibility criteria may apply).
About the Company
Over 150 years old and still going strong, we’re the UK’s second-biggest retailer. Every day, the nation shops with us because they know they’ll get affordable, good food and excellent service. We focus on great value and convenient shopping across our family of brands, from Argos, Nectar and Habitat to Sainsbury’s Bank, Smart Charge and Tu. What’s next for Sainsbury’s? We've put food back at the heart of our business and we’re taking Sainsbury’s to the next level. We’re investing in technology and people and we’re thinki... Know more
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