Platform Engineer

Role Overview Platform On-site ACI BASE24-eps We are looking for a BASE24-eps Developer with 2–4 years of hands-on experience in electronic payment systems and transaction processing. The ideal candidate will have practical knowledge of the ACI BASE24-eps platform, C/C++ programming, payment switching, and integration with banking and payment systems. The candidate will develop, enhance, maintain, and troubleshoot payment-processing applications in a high-availability environment. Key Responsibilities • Develop, customize, and maintain applications on the ACI BASE24-eps platform. • Work on Customer Specific Modifications (CSM), interfaces, transaction routing, and authorization processing. • Analyze and troubleshoot payment transaction failures, authorization issues, and switching errors. • Work with ISO 8583 message formats and payment transaction flows. • Support ATM, POS, card-present, and card-not-present transaction processing, where applicable. • Develop and maintain application components using C/C++; perform code debugging and defect resolution. • Perform unit, integration, system, and regression testing; support SIT/UAT as required. • Support implementation, release activities, production issue resolution, and root-cause analysis. • Collaborate with technical, QA, infrastructure, and business teams; maintain technical documentation. Mandatory Technical Skills • ACI BASE24-eps: Hands-on development, enhancement, or customization experience. • C/C++: Programming fundamentals, code debugging, and application maintenance. • ISO 8583: Understanding of payment message formats, message fields, and transaction processing. • Payment switching: Authorization, transaction routing, reversals, and payment workflows. • Linux/Unix: Commands, shell scripting basics, log analysis, and application troubleshooting. • Interface development: Experience with payment interfaces, host integrations, or customer-specific modifications. • Testing and debugging: Ability to investigate transaction logs, identify root causes, and validate fixes. Additional Essential Skills • Understanding of ATM/POS transaction flows. • Basic knowledge of card issuing and acquiring systems. • Familiarity with clearing, settlement, and reconciliation concepts. • Experience with SIT, UAT, regression testing, and release support. • Basic SQL/database-query knowledge. Page 1 BASE24-eps Developer | Full-Time | Bangalore• Understanding of payment response codes and transaction life cycles. Good-to-Have Skills • Exposure to BASE24-eps modules such as AFT, OLF, ONL, or TLF, depending on the project. • Experience with Visa, Mastercard, RuPay, or other payment-network integrations. • Familiarity with transaction simulators such as FINSIM or Asset. • Knowledge of EMV, PIN processing, and key-management concepts. • Exposure to Git, CI/CD, automated build/deployment, or payment-system migration projects. • Experience with HP NonStop/Tandem environments, if relevant to the clients setup.