Fraud Engineer

About UsEther.fi is one of the largest crypto companies in the world, with over $10B in assets under management and a team of ~50, almost entirely technical staff. We’ve been profitable since day one and are focused on building real consumer financial applications.We believe the future of finance is true on-chain banking. Our products, Stake, Liquid, and Cash, let users earn yield through DeFi strategies and spend their assets globally through our credit card program. You can view our growth publicly on Dune.As we scale our financial products, maintaining world-class fraud/risk defense is core to protecting our users and the long-term health of our card program.Position overviewWe’re hiring a Fraud Engineer with a natural scam hunter mindset. You enjoy spotting anomalous patterns, reverse-engineering attack campaigns and building systems that stay one step ahead of sophisticated fraudsters.This is a high-ownership role where you will own the full fraud stack for ether.fi's campaigns, credit card program, fund flows while working extremely closely with our Engineering, CX and compliance teams.Even if you are not a experienced programmer, welcome if you know (or are willing to learn) how to code with the modern AI agents setup.What you’ll doOwn real-time fraud monitoring, alerting, and automated mitigation systemsHunt emerging threats: cashback farming, card testing, merchant abuse, friendly fraud, money laundry and malicious behavior inside the Ether.fi ecosystemDevelop and tune advanced fraud rules, behavioral signals, and scoring logicWork on internal tools, dashboards, and scripts that make the team dramatically more effectiveDefine fraud strategy and operational playbooks that scale with the businessActive communication with cross-teams and with external business partners to mitigate the fraud risksWhat we are looking forYou get genuinely excited about weird patterns, scam tactics, and outsmarting attackersExceptional ability to find hidden signals in noisy transaction and behavioral dataHigh ownership, low-ego, and ability to drive results in an ambiguous, fast-moving environmentPlus if you haveWorked at a fintech, neobank or issuer processorExposure to web3/crypto-related fraud patternsExposure to consumer fraud patternsBuilt or scaled early-stage fraud operations teamsKnowledge of card/payment fraud mechanics (card testing, BIN attacks, friendly fraud, merchant collusion, etc.)Perks and benefitsCompetitive salary, performance-based incentives, and token allocation grantOpportunity to own fraud defense for multi-billion dollar productsHealth, dental, and vision insuranceGlobal team with opportunities for travel across our 3 offices4 weeks work-from-anywhereCompany events and team-building off-sites