At MK GROUP, I developed Android identity SDKs for NFC and USB smart-card readers, with native C++/JNI components for device communication. I also worked on ISO 7816/APDU communication and ICAO data parsing.
I designed passwordless authentication using FIDO2, WebAuthn, Passkeys, Android Credential Manager, and Android Keystore. For the FIDO2 Mobile Authenticator, I implemented cryptographic operations and protocol components for secure cross-device communication.
I developed Smart OTP solutions for financial institutions including NCB, TPBank, LPBank, and SSI, and contributed to secure banking authentication and transaction signing. Earlier, I developed Android applications for expense management, retail, POS, and restaurant operations, and mentored junior developers at BEETECH MEDIA COMPANY.

