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Senior Data & Machine Learning Engineer (Fraud Risk Platform)

sardine • United States
Full Remote
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Lead the end-to-end data and ML infrastructure for Sardine’s fraud risk platform, owning pipelines, feature engineering, model productionization, and compliance signals. Design scalable streaming/batch systems, entity resolution, and governance frameworks while mentoring cross-functional teams. Requires 8+ years of production ML/data engineering experience with deep expertise in fraud/risk domains and cloud-native stacks.

Key Highlights
Own end-to-end data/ML pipelines for fraud, KYC, and AML decisioning with real-time and batch processing
Set technical direction for feature platforms, model serving, and fraud-specific ML challenges (e.g., adversarial drift, label latency)
Build and harden high-volume, low-latency systems with GCP/AWS, Kubernetes, and distributed processing frameworks
Key Responsibilities
Design and maintain streaming (Pub/Sub, Beam/Dataflow, Flink) and batch (Spark, Airflow) pipelines for device telemetry, transactions, KYC signals, and third-party enrichment
Build and evolve a unified feature platform with cross-framework consistency (Flink/Spark) and sub-second latency constraints for fraud/rules engines
Productionize fraud/identity ML models (XGBoost, LightGBM, scikit-learn) with automated retraining, champion/challenger promotion, and drift monitoring
Engineer KYC/AML signals from multi-vendor, multi-jurisdictional data (sanctions, PEP, adverse media, synthetic identity indicators)
Develop entity resolution and graph data models linking customers, devices, and financial assets across clients
Implement data governance for PII, encryption, regional residency, and auditability in compliance with regulated environments
Mentor engineers/data scientists, write design docs, and guide architectural decisions for scaling fraud ML capabilities
Technical Skills Required
Python Distributed Processing (Spark, Apache Beam, Flink) Cloud Data Stack (BigQuery, Dataflow, Vertex AI)
Benefits & Perks
Generous compensation in cash and equity
Remote-first work culture with global flexibility
Health insurance, dental, vision, 401k/RRSP matching, and stipends for home office, meals, social events, and wellness
Nice to Have
Customer-facing ML integrations (explainability, shadow scoring)
High-growth B2B SaaS or early-stage data/ML function building experience
Experience with model explainability frameworks (SHAP) for regulatory compliance

Job Description

Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market, spanning more than 6 billion profiled devices, 800 million consumers, and 3 million businesses worldwide. Leading companies including FIS, GoDaddy, Intuit, Edward Jones, ZoomInfo, and Checkout.com rely on Sardine to secure and grow trust in their products.
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