AI Growth Data Scientist (Hybrid) - London/Amsterdam

Just Eat Takeaway.com; Bracknell; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Just Eat Takeaway.com is seeking a Data Scientist to join the AI Growth team in a hybrid London or Amsterdam role. This full-time position focuses on building end-to-end ML solutions that power personalised experiences across our marketplace and drive customer engagement and orders.

You’ll work on embedding models, fine-tuned LLMs, and ranking systems, collaborating with ML engineers, product teams, and commercial stakeholders to ship production-quality ML systems that deliver measurable impact

Qualifications

• Proven track record delivering end-to-end ML solutions from problem framing through data exploration to production deployment.
• Hands-on expertise in search, retrieval and recommendation techniques with measurable business impact.
• Practical experience applying LLMs in production environments, including prompt engineering, fine-tuning, structured output validation.
• Strong experimentation skills with ability to design and interpret A/B tests and understand offline-online performance gaps.
• Production-grade Python coding and SQL for data pipelines and analytics.
• Excellent collaboration with ML engineers, product partners and commercial teams.

Responsibilities

• 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.
• Collaborate with ML engineers to productionise models and maintain monitored pipelines delivering value.
• Translate complex business questions into clear modelling approaches and communicate results to stakeholders.
• Own end-to-end workstreams, framing problems, choosing approaches, running experiments and presenting findings.
• Move fast by writing production-quality Python and SQL for scalable data pipelines.
• Contribute to JET's foundation model platform and personalised targeting systems.
• Design experiments that influence commercial decisions with statistical validity.
• Stay current with advances in search, retrieval, recommendations and LLM applications.

Skills

End-to-end ML

Search/retrieval

Recommendation systems

LLMs / prompt engineering

Python

SQL

MLOps

A/B testing

Data pipelines

Cross-functional collaboration

Tools

Git

Docker

Airflow

PyTorch

TensorFlow

Job description

Just Eat Takeaway.com is seeking a Data Scientist to join the AI Growth team in a hybrid London or Amsterdam role. This full-time position focuses on building end-to-end ML solutions that power personalised experiences across our marketplace and drive customer engagement and orders.

You’ll work on embedding models, fine-tuned LLMs, and ranking systems, collaborating with ML engineers, product teams, and commercial stakeholders to ship production-quality ML systems that deliver measurable impact