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Head of Machine Learning Engineering

London💼 Full-time🗓 2026-06-29 → 2026-09-25

Core

Define and lead ML strategy, team, and delivery for the Core Experience pillar (search, pricing, payments, fare intelligence, conversational interfaces) to improve customer experience and drive business outcomes.

Role type

Senior leadership, manager-of-managers (Head of Machine Learning)

Builds

Production ML systems for search relevance, payments models, fare optimization, supply automation, and conversational AI

Domain

Travel technology, rail marketplaces, AI/ML

Deliverable

production ML models

Required skills

Strategic planning and roadmap definition, team leadership (managing managers), budget ownership (infrastructure and vendor costs), operational maturity (SLIs/SLOs, incident management), stakeholder management, hiring and talent development, full ML lifecycle expertise

Preferred skills

AWS cloud infrastructure, cross-functional delivery in product-led organizations, conversational and agent-based systems deployment, travel/transport/marketplace domain experience

Technologies

Python, scikit-learn, NumPy, LightGBM, Pandas, LangChain, LangGraph, TensorFlow, PySpark, AWS (EMR, ECS, Athena), Terraform, Docker, Airflow, MLFlow, New Relic, Braintrust

Responsibilities

Define vision, strategy, and roadmap for ML across the Core Experience pillar; lead multiple ML teams through team leads; coach managers and senior ICs; drive delivery of end-to-end ML systems; shape AI practices and governance for LLM-based features and agentic systems

Seniority

Senior, hands-on IC leadership (manager-of-managers)

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