Senior Engineer
CurrentAs a key technical team member at TCH, I successfully implemented innovative payment solutions, including Payment Account Tokenization (PAT), Secure Token Exchange (STE), and Real-Time Payments (RTP), to leading commercial banks in the US. Proficient with OEM specifications such as Samsung Pay and Apple Pay, and Payment Network specs by Mastercard and Visa. Also familiar with messaging formats ISO 8583 and ISO 20022 and EMV, with a readiness to deepen this knowledge.As a subject matter expert, I possessed extensive knowledge of PAT, STE and, RTP APIs and collaborated with vendor and client developers, reviewed SDDs and API specs, and created supplemental documents for use by RTP, Banks, Fintechs, Token Requestors, and Vault Search institutions consuming tokenization, de-tokenization, lifecycle management, and vault search APIs. I also developed Java-based API client application, identified and reported critical functional issues, assisted in bank certifications and provided level-4 production support. Additionally, I assisted in creating onboarding procedures, forms, JWE encryption and decryption, JWS signing and verification, SCOM monitoring, DB2 database replication (Q Replication), Urban Code deployment, and maintained up-to-date wikis with technical concepts, flow diagrams, learnings and troubleshooting documents.