Base24 EPS Developer | 6 to 9 years | Bengaluru & Gurugram

Job Description

We are hiring BASE24-eps developers with hands-on experience in building interfaces. The ideal
candidate has experience in developing and implementing Base24-eps interfaces including Mastercard interface,
scheme updates, BIN changes, authorization enhancements, EMV updates, and compliance-driven system
modifications.
Key Responsibilities
• Develop, enhance, and maintain BASE24-eps applications for new interface development including
Mastercard interface.
• Development involves building new interfaces for authorization, switching, routing, and settlement.
• Implement Visa, Mastercard, Amex, or other card scheme mandates, and ensure compliance across
system components.
• Integrate, test, and support payment interfaces (ISO8583, host interfaces, third-party processors,
gateways, fraud systems).
• Examine scheme bulletins and translate requirements into technical changes within BASE24-eps modules.
• Troubleshoot authorization issues, transaction declines, routing faults, and system-level processing errors.
• Support end-to-end testing: certification testing, mandate validation, regression cycles, and cutover
activities.
• Coordinate with cross-functional teams: QA, infrastructure, production support, and client stakeholders.
• Prepare technical documentation, release notes, and deployment procedures as needed.

Primary Skills

• 6+ years of hands-on experience with BASE24-eps (AFT, OLF, ONL, TLF modules, device handlers,
and related components).
• Strong experience implementing card scheme mandates (Visa, Mastercard, Amex, JCB, Discover, etc.).
• Solid understanding of payment message formats, including:
o ISO 8583
o Proprietary scheme formats
o Host Interface specifications
o APIs
• Proficiency in C++, Mainframe, Linux, MQ or XPNET
• Experience in real-time transaction systems and high-throughput payment platforms.
• Knowledge of authorization flows, EMV processing, issuer/acquirer concepts, interchange processing, and
settlement.
• Strong analytics and debugging skill with ability to trace complex transaction paths.
• Ability to work independently in distributed and remote teams.
• Excellent communication skill for interacting with scheme partners and client stakeholders.
Preferred Qualifications
• Experience with mandate certification, scheme migrations, or large-scale mandate rollouts.
• Knowledge of POS, ATM, eCommerce, or tokenization transaction flows.