At a Glance
- Tasks: Build and deploy data models that drive real-world outcomes for customers.
- Company: Join Tesco Mobile, a leader in personalised customer experiences.
- Benefits: Enjoy hybrid working, flexible hours, and a supportive team environment.
- Other info: Collaborative culture with opportunities for mentoring and knowledge sharing.
- Why this job: Make a real impact on high-stakes projects while growing your expertise.
- Qualifications: Strong background in data science, statistics, and programming skills required.
The predicted salary is between 70000 - 90000 £ per year.
At Tesco Mobile, we use data to connect people and shape personalised experiences. We are looking for a Senior Data Scientist to build and deploy scalable models that drive real‑world outcomes for our customers.
Why Join Us?
- Work on high‑impact projects that influence real business outcomes
- Be part of a collaborative, forward‑thinking team
- Combine deep technical work with real‑world application
- Grow your expertise in a supportive and innovative environment
Role Details
This role can be based in Welwyn Garden City or our Slough office with occasional travel required. Team collaboration is key – you'll attend a fortnightly team meeting (typically in Slough or London). We embrace hybrid working, with a minimum of 2 days per week in the office.
Responsibilities
- Own end‑to‑end delivery of data science solutions – from problem framing, feature engineering, monitoring, evaluation and deployment
- Design and execute hypothesis‑driven analysis and statistical testing (e.g., experiment design, assumption checking, uncertainty quantification) and translate results into clear business recommendations
- Build and productionise propensity models to support targeting, next‑best‑action and other decisioning use cases
- Build and productionise time series forecasting models for demand and stock perspectives; perform back‑testing and continuously improve forecast accuracy
- Partner with stakeholders to define success metrics and deliver meaningful outcomes
- Build, validate and optimise robust data pipelines and model code – testing, performance, reproducibility, documentation and security considerations
- Contribute to team growth through knowledge sharing, mentoring and best practice
Essential Experience
- Demonstrated ability to solve ambiguous problems and deliver end‑to‑end analytical solutions
- Strong grounding in applied statistics (hypothesis testing, experiment design, uncertainty analysis)
- Proven experience with both static and time series modelling
- Advanced skills in Python, SQL, and PySpark, with a focus on clean, testable, reproducible code
- Experience deploying models in cloud environments (Azure preferred), including CI/CD and monitoring
- Strong communication skills – able to simplify complex ideas for non‑technical audiences
- PhD or Masters Degree
Desired Experience
- Experience with tools such as MLflow, PyTorch, Databricks, or graph databases
- A passion for continuous improvement and sharing knowledge
- A collaborative mindset with excellent stakeholder engagement skills
Benefits
- Hybrid working blend – a mix of office and remote (2 days per week in the office).
- Flexible working patterns across full‑time and part‑time positions.
Equal Opportunity Employer
Tesco is an equal opportunity employer. We are committed to a fully inclusive and accessible recruitment process.
Senior Data Scientist (Tesco Mobile) employer: WeAreTechWomen
At Tesco Mobile, we pride ourselves on being an excellent employer by fostering a collaborative and innovative work culture that empowers our employees to make a real impact. With opportunities for professional growth and a commitment to hybrid working, our team members enjoy a flexible environment that balances personal and professional development. Join us in Welwyn Garden City or Slough, where you can contribute to high-impact projects while enjoying the benefits of a supportive and inclusive workplace.
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We think this is how you could land Senior Data Scientist (Tesco Mobile)
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We think you need these skills to ace Senior Data Scientist (Tesco Mobile)
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