Senior ML Engineer, Conversational AI — Hybrid (London)

Deliveroo; London (KY); Hybrid; USD 159,000 - 225,000; Full time

Job summary

Deliveroo is seeking a Senior Machine Learning Engineer for its London team to shape decision-making systems that impact customer experience, trust and fairness. The role sits in a hybrid environment with three days in the office, focused on real-world ML at scale for a three-sided marketplace.

You will own the full ML lifecycle, advance Generative AI workstreams, and collaborate with product managers to turn complex problems into robust, scalable ML solutions.

Qualifications

• Significant experience as an ML Engineer or Data Scientist with production-grade Python.
• Proven ownership of productionising Generative AI/Agentic AI projects, including a deep understanding of LLMs, transformers, and fine-tuning.
• Proven ability to deploy and manage models using modern infrastructure tools such as Docker, Kubernetes, and CircleCI.
• Strong foundational knowledge of traditional ML and evaluation techniques, balanced with a bias for simplicity and measurable business impact.
• A collaborative mindset with experience mentoring peers and a drive to solve complex, real-world problems at scale.

Responsibilities

• Own the full ML lifecycle: Lead the design, development, and productionisation of machine learning models used in customer support and high-stakes decision systems.
• Architect for reliability: Build robust monitoring, evaluation, and alerting frameworks to detect model underperformance, drift, or unexpected behaviour in real-time.
• Collaborate on product strategy: Partner closely with Product Managers to turn ambiguous customer problems into robust, scalable ML solutions.
• Drive technical excellence: Provide technical leadership in areas with unclear ownership, setting the gold standard for ML quality, reliability, and maintainability.
• Bridge science and engineering: Work with data scientists and engineers across the global organisation to embed models into high-performance, scalable systems.

Skills

Python

Generative AI

LLMs

Docker

Kubernetes

CircleCI

Mentoring

Collaboration

Go

Tools

Go

Job description

Deliveroo is seeking a Senior Machine Learning Engineer for its London team to shape decision-making systems that impact customer experience, trust and fairness. The role sits in a hybrid environment with three days in the office, focused on real-world ML at scale for a three-sided marketplace.

You will own the full ML lifecycle, advance Generative AI workstreams, and collaborate with product managers to turn complex problems into robust, scalable ML solutions.