Data Scientist - Simulation and Digital Twins

Location: Welwyn Garden City campus, United Kingdom. Hybrid working with 60% of the week spent collaborating at office locations or local sites and the remainder remotely.

Company

Tesco is a retail and technology company operating across stores, online services, supply chain, marketing, Clubcard, and mobile communications.

What you will do

• Build and maintain Python-based simulation models for operational and supply chain problems.
• Develop models at different levels of fidelity, balancing accuracy, available data, and computing requirements.
• Connect models across tools and computers in distributed or federated simulation environments.
• Prepare operational data, validate models against real-world results, and analyse variation and uncertainty.
• Run repeatable scenario experiments to assess capacity, cost, service, and resource-use trade-offs.
• Contribute to agile delivery, code reviews, version control, automated testing, and reliable software releases.

Requirements

• Strong Python programming skills and the ability to write clear, structured, and testable code.
• Experience with simulation modelling, data analysis, basic statistics, and representing real-world processes at different levels of detail.
• Understanding of how separate models or software components exchange data and work together.
• Familiarity with Git, automated testing, software delivery practices, and agile teamwork.
• Ability to explain technical work clearly, document assumptions, and communicate findings.
• Background in engineering, computer science, mathematics, physics, operational research, or equivalent practical experience.

Nice to have

• Experience with distributed or federated simulation environments.
• Exposure to simulation interoperability standards, multi-fidelity models, automated testing, or deployment.
• Experience building or adapting simulation models using object-oriented programming and data science methods.

Culture & Benefits

• Hybrid working model with office or local-site collaboration and remote work.
• Annual bonus scheme of up to 20% of base salary.
• 25 days of holiday plus a personal day and bank holidays.
• Private medical insurance and a 24/7 virtual GP service.
• Paid maternity, adoption, and paternity leave, plus an Employee Assistance Programme.
• Inclusive and accessible recruitment process with workplace support available.