Responsibilities:
- Design and develop engineering solutions for payment terminal applications that run across multiple Android-based payment terminal models (Ingenico, PAX, Castles), integrating with multiple host systems using standard protocols (e.g., ISO8583, Web APIs, JSON) and merchant POS systems (ECR – Electronic Cash Register).
- Translate user requirements into secure, resilient, and maintainable source code that is properly tested, reviewed, and documented.
- Participate in EMV L3 certification processes with international payment schemes such as Visa, Mastercard, AMEX, UnionPay, JCB, and Discover. Experience with PURE kernel is advantageous.
- Contribute to the development of test tools and adopt test automation frameworks as part of the development lifecycle.
- Collaborate with internal teams (QA testers, POS developers, Support, and Certification team) for SDLC activities, facilitate troubleshooting, and resolve issues in both pre- and post-production en...