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Senior Software Engineer - ML/ Fraud Prevention

Warsaw (PL-WAW-TFM)🌐 Remote💼 Full-time🗓 2026-09-21 → 2026-09-26

Core

Train, evaluate, and ship production ML models to score rider risk in real time, protecting revenue from payment fraud and reducing vehicle vandalism.

Role type

Senior IC machine-learning engineer (fraud prevention)

Builds

Real-time model serving infrastructure and high-throughput feature pipelines integrated into trip creation and payment authorization paths

Domain

Autonomous driving / Payments / Fraud prevention

Deliverable

production ML models

Required skills

Distributed backend systems, production ML systems, model training and deployment, low-latency high-availability serving, data modeling, SQL analytics

Preferred skills

Fraud prevention, risk management, trust & safety, payments, adversarial domains, graph/entity-clustering, rules engines, anomaly detection, feature/data pipeline consistency

Technologies

Python, Java, Kotlin, C++, Go

Responsibilities

Engineer and maintain high-throughput, low-latency feature pipelines over payment, trip, device, and identity events; Build and operate real-time model serving infrastructure; Design and implement safe, graduated enforcement mechanisms with audit trails and rider appeals support; Partner cross-functionally with Product, Finance, and Safety to balance revenue protection, rider trust, and compliance

Seniority

Senior, hands-on IC

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