Head of Payment Security & Transaction Integrity

***Join the Pioneer Crypto Brand in the Philippines!*** Coins is the most established crypto brand in The Philippines and has gained the trust of more than 18 million users. Through the easy-to-use mobile app, users can buy and sell a variety of different cryptocurrencies and access a wide range of financial services. Coins is fully regulated by the Bangko Sentral ng Pilipinas (BSP) and is the first ever crypto-based company in Asia to hold both Virtual Currency and Electronic Money Issuer licenses from a central bank.

### Payment Security Architecture - Review and approve payment flow designs before production launch - Conduct payment threat modeling for all new payment products - Define secure transaction integrity standards - Establish source-of-truth and immutable payment context frameworks ### Transaction Integrity - Prevent amount tampering, currency manipulation, replay attacks, merchant spoofing, and settlement abuse - Build transaction verification controls and payment validation mechanisms - Define critical payment control requirements across all payment products ### Adversarial Testing - Establish a Payment Red Team program - Simulate malicious user behavior against payment systems - Conduct business logic attack testing and abuse-case validation ### Incident Response - Lead investigations of payment-related security incidents - Conduct root cause analysis and drive remediation - Build a payment incident review and governance framework ### Fraud & Risk Partnership - Partner with Fraud, Risk, Operations, Compliance, and Engineering teams - Design monitoring and alerting frameworks for transaction anomalies - Reduce financial losses caused by abuse, fraud, and system weaknesses ### Governance - Chair Payment Security Review Board - Define payment security standards and launch approval processes - Create risk acceptance and escalation frameworks

- 8+ years in payments, fintech, acquiring, banking, or transaction risk - Deep understanding of payment systems, merchant acquiring, settlement, reconciliation, and transaction processing - Experience with payment fraud, transaction abuse, or payment security - Strong understanding of business logic vulnerabilities and adversarial thinking - Ability to work across Engineering, Risk, Compliance, and Operations teams

***Join the Coins Team Now!*** **Meaningful Collaborations** - The successful candidate will work cross-functionally with other relevant teams to carry out implementations that will improve and create an impact on customer experience. **Scalable Growth** - Be part of a fast-growing organization with the vision to expand its territories outside APAC which will provide opportunities for career advancement. **A Space For Bright Ideas** - Let your bright ideas be converted into meaningful changes! Coins culture welcomes new ideas backed up by data to create an impact.

Coins.ph is the Philippines' leading fiat and crypto wallet and exchange, enabling users to buy, sell, and trade over 170 cryptocurrencies like Bitcoin and Ethereum, as well as access financial services including remittances, bill payments, and mobile top-ups. It serves over 18 million users through a mobile app and is fully regulated by the Bangko Sentral ng Pilipinas as the first crypto-based company in Asia with both Virtual Currency and Electronic Money Issuer licenses.[1][2][4]