Lead Machine Learning Scientist – Financial Crime

About the role

Monzo is looking for a Lead Machine Learning Scientist to head its Financial Crime defence efforts. You will work in a fast‑moving team, building and iterating models that protect millions of customers from fraud and scams.

Key responsibilities

• Design, develop and deploy advanced machine‑learning models that automatically detect suspicious user behaviour.
• Continuously monitor model performance and adapt to evolving fraud patterns.
• Collaborate with analytics engineers, data analysts and product teams to integrate detection systems into Monzo’s cloud‑native data platform.
• Quantify the impact of models on operational costs and customer experience.

Required profile

• Proven experience leading machine‑learning projects at scale, preferably in financial‑crime or fraud domains.
• Strong analytical mindset with a track record of turning large, complex datasets into actionable models.
• Ability to work independently while influencing cross‑functional teams.

Required skills

• Machine‑learning model development and deployment.
• Large‑scale data processing on cloud‑native platforms.
• Statistical modelling and evaluation techniques.

What we offer

• Competitive salary range £115,000‑£150,000 per year.
• Performance‑linked incentive awards.
• Comprehensive benefits package and flexible remote work options.