C/C++ Developer
First seen by Alion on Aug 12, 2026.
Job Description : C/C++ Developer
Experience : 35 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 to 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.
Skills
C, C++, Payment System, Backend Architecture, Socket Programming, Data Structure, Payment Processing, POS, Transaction Processing System