C/C++ Developer

Job Description – C/C++ Developer

Experience: 3–5 Years
Joining: Immediate joiners preferred
Location: Bangalore

Job Summary

We are looking for a C/C++ Developer with experience in payment applications and POS terminals. The candidate should have good knowledge of EMV, socket programming, data structures, and payment transaction processing.

Key Responsibilities

• Develop and maintain POS payment applications using C/C++.
• Implement payment transactions such as Sale, Refund, Void, Reversal, and Settlement.
• Integrate EMV Contact and Contactless payment flows.
• Develop TCP/IP socket communication with payment hosts and servers.
• Analyse logs and troubleshoot transaction and application issues.
• Integrate POS device SDKs and peripherals.
• Support host and payment certification activities.
• Write clean, secure, and maintainable code.
• Coordinate with testing, backend, and product teams.

Required Skills

• 3–5 years of C/C++ development experience.
• Experience in POS or payment application development.
• Knowledge of EMV Contact and Contactless transactions.
• Good understanding of data structures, pointers, memory management, and multithreading.
• Experience in TCP/IP socket programming.
• Basic knowledge of ISO 8583.
• Experience with Linux or embedded systems.
• Good debugging and problem-solving skills.
• Knowledge of Git or other version-control tools.

Preferred Skills

• Experience with RTOS or Linux-based POS devices.
• Knowledge of POS peripherals such as card readers, NFC, printers, and PIN pads.
• Knowledge of payment schemes such as Visa, Mastercard, RuPay, or AMEX.
• Understanding of payment security and key-management concepts.