Senior Fraud and Risk Engineer

What You’ll Do

• Own and evolve Breeze’s fraud risk engine, integrating Sift ML scoring and Sardine rules across all merchant categories
• Design and maintain a scalable rules architecture, including category-level defaults, merchant-specific overrides, velocity checks, and blocklists
• Continuously tune thresholds and features across merchant segments to optimize approval rates and minimize fraud
• Build feedback loops between manual review decisions, chargeback data, and model retraining to improve detection accuracy
• Partner closely with risk operations to translate real-world fraud patterns into automated rules and systems
• Lead onboarding of new merchants into the risk stack, solving cold-start challenges and calibrating risk for new verticals
• Monitor and improve key fraud KPIs, including approval rate, chargeback rate, and false positive rate
• Collaborate cross-functionally with product, engineering, and operations to ensure risk systems are scalable and deeply integrated into the platform

Requirements

• 6+ years of experience in fraud/risk engineering in fintech, payments, or related technology environments
• Proven experience working with or integrating fraud detection platforms (e.g., Sift, Sardine, Forter, Feedzai, Kount)
• Experience supporting multi-merchant or marketplace environments with complex risk needs
• Strong understanding of payments infrastructure, transaction flows, and fraud vectors
• Familiarity with PCI compliance, 3DS, and PSP-level risk tooling is a plus
• Experience in high-risk verticals such as gaming, crypto, or digital goods is a plus
• Ability to own systems end-to-end, from design through production and iteration
• Bachelor’s degree or equivalent experience