npv labs - Principal ML Engineer

London / Lisbon€220k/year+ Equity3w ago

In Office Principal EMEA Payments Fintech ML Engineer Principal SQL Python

Requirements

• Exceptional depth in machine learning, with substantial experience building and operating ML systems in production, including both traditional ML (ranking, classification, tree-based models, calibration) and modern deep learning/LLM systems. • Strong Python and SQL skills, and experience designing scalable training, inference and model-monitoring infrastructure in a cloud environment. • AI-native working habits – comfort using modern AI tools to accelerate research, development and experimentation. • Conversational English. • Experience in credit underwriting, lending, payments, fraud or financial services is a major plus. • London, UK or Lisbon, Portugal (on-site).

Responsibilities

• Set the technical direction for machine learning across Split Pay and own the full lifecycle of ML systems, from problem formulation and experimentation to deployment and monitoring. • Build and improve models across underwriting, credit risk, fraud detection, payment routing, collections and marketing optimisation, combining traditional statistical/ML techniques with foundation models and LLM-based approaches. • Work directly on the underwriting stack, where classical ML and the company's own foundation-model-based systems operate together, and mentor engineers along the way.

Benefits

• €150K – €220K • Higher salary and equity are negotiable • Upload your resume here to autofill key application fields. • Drop your resume here! • Parsing your resume. Autofilling key fields... • Even if it's outdated or not "ideal" • or drag and drop here • Enter country name • Feel free to highlight something you're proud of (e.g. hackathons, OSS, shipped products, competitions, patents, etc.) • Your LinkedIn link will help us immensely, if you can't provide any please put n/a or similar