Machine Learning Engineering Manager

London, Remote. Posted 29 days ago

The role

You will lead a team of 7 ML and data engineers within the Core Experience pillar. You will be responsible for team delivery, technical direction, and shipping ML and AI systems.

What you will do

Lead, coach and grow a team of ML and data engineers
Hire for the team and run interview processes
Plan and prioritise delivery with product partners
Set technical direction including architecture and build-versus-buy decisions
Ensure the team builds reliable data pipelines, features, and deployment processes
Lead the building of production-grade agentic systems
Make evaluation a first-class engineering discipline for LLM and agent work
Set guardrails for responsible use of AI
Raise engineering practice through code reviews, CI/CD, MLOps, and observability
Build relationships with senior leaders and partner teams

Required qualifications

Experience line-managing engineers, including hiring, performance management and career development
Strong background as an ML engineer with a track record of taking models into production
Grounding in data engineering including pipelines, data modelling and data quality
Solid Python and software engineering fundamentals
Depth in at least one area such as ranking and recommendation, predictive modelling, optimisation or NLP
Solid grasp of statistics, experimentation and feature engineering
Experience with modern ML infrastructure on a major cloud platform
Hands-on experience shipping agentic or LLM-based systems
Disciplined approach to evaluating LLM and agent systems
Clear communication with technical and non-technical colleagues

Nice to have

Experience with AWS
Experience with agent orchestration frameworks, tool use, RAG, and fine-tuning
Experience using tools such as Braintrust

Benefits

Private healthcare & dental insurance
Generous work from abroad policy
2-for-1 share purchase plans
EV Scheme
Extra festive time off
Family-friendly benefits
Clear career paths
Transparent pay bands
Personal learning budgets
Regular learning days

About the company

Trainline is Europe’s leading independent rail platform that helps travellers find and book rail and coach journeys. The company aims to empower greener travel choices through its app, website, and B2B partner channels.