ML Growth Scientist: Personalization & LLMs (Hybrid)

Just Eat Takeaway.com; Ivy Chimneys; Hybrid; GBP 85,000 - 112,000; Full time

Job summary

Just Eat Takeaway.com in London or Amsterdam is seeking a Data Scientist to join the AI Growth team. You will build end-to-end ML solutions, from problem framing to production deployment, impacting customer engagement and orders across multiple markets.

You will work on embedding models, recommender systems and real-time experiments, collaborating with ML engineers, product and commercial stakeholders to ship scalable, production-grade code.

Qualifications

• Proven track record delivering end-to-end ML solutions from problem framing through data exploration to production deployment and experiment measurement.
• Hands-on expertise in search, retrieval and recommendation techniques with measurable business impact.
• Practical experience applying LLMs in production environments, including prompt engineering and fine-tuning.
• Strong experimentation skills with ability to design and interpret A/B tests and understand offline vs online performance.
• Production-grade Python coding beyond notebooks for engineering workflows.

Responsibilities

• Lead the development and deployment of ML/AI solutions including embedding models, fine-tuned LLMs, and ranking systems.
• Apply generative AI techniques to personalisation challenges, improving search relevance and app experiences.
• Own experiments with statistical rigour and measure real business impact.
• Collaborate with ML engineers to productionise models and maintain monitored pipelines.
• Communicate results effectively to product and commercial stakeholders.
• Take end-to-end ownership of well-scoped workstreams and ship production-quality ML systems.
• Write production-ready Python code and efficient SQL for scalable data pipelines.
• Contribute to foundation model platform and personalised targeting systems.
• Design experiments that influence commercial decisions with actionable insights.

Skills

End-to-end ML solutions

Search/retrieval/recommendation

LLMs production

A/B testing

Python coding

SQL

Collaborative across teams

Tools

Python

SQL

Data pipelines

Job description

Just Eat Takeaway.com in London or Amsterdam is seeking a Data Scientist to join the AI Growth team. You will build end-to-end ML solutions, from problem framing to production deployment, impacting customer engagement and orders across multiple markets.

You will work on embedding models, recommender systems and real-time experiments, collaborating with ML engineers, product and commercial stakeholders to ship scalable, production-grade code.