Senior Developer

MDSL (an ITG Holding company) provides solutions across Core Banking, Compliance & Risk Management, Corporate & Retail Lending, Digital Banking, Electronic Signature Verification, and EFT & Payment Systems, including ATM/POS switching, card management, fraud management, and card issuance solutions.

The ideal candidate will have strong technical experience in ATM and payment switching systems, with hands-on knowledge of C++, Pro*C, SQL, Unix, ISO 8583, and banking/payment interfaces.

Key Responsibilities:

• Develop, configure, test, and support ATM transaction flows for NCR, Wincor, and Diebold ATMs, including cash withdrawal, cash deposit, cheque deposit, cardless, contactless, and other transaction types.
• Develop and support IST/Switch modules on Unix using C++, Pro*C, and SQL.
• Develop and maintain ISO 8583 interfaces connecting payment systems with core banking systems, fraud management systems, payment networks, and other endpoints.
• Work on transaction flows supporting ATM, POS, e-commerce, and mobile/contactless payment transactions, including Apple Pay.
• Implement and maintain transaction validation, authorization, and transaction-limit management processes.
• Develop and support interfaces for Base2 reconciliation, prepaid services, cardless transactions, and SMS services.
• Integrate systems using REST and SOAP APIs, working with both JSON and XML formats.
• Perform testing using FINSIM simulator and physical ATMs, including onsite testing when required.
• Provide remote and onsite technical support for ATM and payment-related solutions.
• Perform partial installations, full upgrades, and configuration of IST Switch.
• Provide technical support for FIS NetXMS monitoring tools.
• Support and troubleshoot FIS Memento fraud management applications.
• Collaborate with technical, functional, and project teams to investigate issues, prioritize tasks, and deliver solutions across concurrent projects.
• Participate in troubleshooting, system maintenance, testing, deployment, and production support activities.
• Prepare and maintain technical documentation related to implemented solutions and configurations.

Requirements:

• Bachelor's degree in Computer Science, Computer Engineering, Software Engineering, or a related field.
• Previous experience in banking, payments, ATM, POS, switching, or financial technology solutions is highly preferred.
• Hands-on experience working in Unix/Linux environments.
• Strong understanding of ISO 8583 and financial transaction processing.
• Experience with ATM/POS switching systems , preferably IST/Switch.
• Experience with ATM transaction flows and/or ATM simulators is an advantage.
• Experience with system integration and interfaces between payment systems, core banking systems, fraud management systems, and payment networks.
• Strong troubleshooting and problem-solving skills.
• Ability to work on multiple projects simultaneously and collaborate with different teams.
• Willingness to provide remote and onsite technical support when required.