> Markdown version of [/jobs/ext/4573898-data-scientist](https://www.wearedevelopers.com/jobs/ext/4573898-data-scientist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Data Scientist

- **Company:** Just Eat Takeaway.com
- **Location:** Esher, UK (Remote available)
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Artificial Intelligence, Data Analysis, Encodings, Data Warehousing, Python (Programming Language), Standard Sql, Software Deployment, SQL Databases, Large Language Models, Prompt Engineering, Machine Learning Operations, Data Pipelines
- **Published:** November 5, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/data-scientist/54989545

## About the Role

Proven track record delivering end-to-end ML solutions from problem framing through data exploration to production deployment and experiment measurement, demonstrating your commitment to achieving goals.
Hands-on expertise in search, retrieval and recommendation techniques including embedding-based approaches, learning-to-rank, and vector similarity search with measurable business impact.
Practical experience applying LLMs in production environments, including prompt engineering, fine-tuning, structured output validation and assessing generative output quality.
Strong experimentation skills with ability to design and interpret A/B tests, reason about statistical significance, and understand the gap between offline and online performance.
Production-grade Python coding abilities that go beyond notebooks, writing clean, testable code suitable for engineering workflows and collaboration with technical teams.
Proficient SQL
skills across complex data warehouses, including partitioning, window functions, and large-table joins, with focus on query efficiency and data quality.
Excellent problem-framing and communication skills to translate ambiguous business questions into modelling approaches and explain technical results to non-technical stakeholders based on respect and mutual support.
Self-starter attitude comfortable with autonomy and ambiguity, thriving in fast-paced environments where you can build rapidly, test rigorously and roll out successes at scale.
Strong collaboration skills to work effectively with senior data scientists, ML engineers, product partners and commercial teams across different levels and functions.
Results-driven mindset with attention to detail, able to balance speed of execution with technical rigour while making data-informed decisions that create lasting impact.

Bonus skills that will help you excel:
Experience with causal inference or uplift modelling relevant to promotions and growth initiatives.
Knowledge of sequential or session-based recommendation modelling techniques.
Familiarity with real-time data pipelines and streaming infrastructure.
Experience working across multiple languages or markets in a data science context.

## Description

These are some of the key components to the position:
Lead the development and deployment of ML/AI solutions including embedding models, fine-tuned LLMs, and ranking systems that drive engagement and orders while raising the bar for technical excellence.
Apply generative AI and LLM techniques to personalisation challenges, generating customer and partner representations that improve search relevance and app experiences.
Own your results by designing, running and interpreting A/B experiments with statistical rigour, measuring real impact on business metrics and holding yourself accountable.
Collaborate with ML engineers to productionise models, implementing MLOps best practices and maintaining monitored pipelines that deliver consistent value.
Break down silos by translating complex business questions into clear modelling approaches and communicating results effectively to product and commercial stakeholders.
Be determined to take end-to-end ownership of well-scoped workstreams, independently framing problems, choosing approaches, running experiments and presenting findings.
Move fast by writing production-quality Python code and efficient SQL for data pipelines and analyses that can scale across our marketplace.
Contribute to JET's foundation model platform and personalised targeting systems, pushing boundaries to create lasting impact across millions of customer interactions.
Set clear goals by designing experiments that influence commercial decisions while ensuring statistical validity and actionable insights.
Aim higher by staying current with advances in search, retrieval, recommendations and LLM applications, bringing fresh ideas to drive the AI Growth vision forward.