Base24 EPS Developer

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.
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.

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.