We are seeking an experienced ACI Connex Developer with robust expertise in payment switching, ATM/POS transaction processing, ISO 8583 messaging, and acquiring/issuing systems. The ideal candidate should have hands-on experience in Connex development, switch interfaces, payment network integrations, and transaction processing solutions within the Cards & Payments domain.
Key Responsibilities
Develop, customize, and support ACI Connex payment switch applications.
Design and implement transaction processing solutions for ATM, POS, and card payment systems.
Develop and maintain Connex interfaces, routing rules, and transaction flows.
Work on issuer and acquirer transaction processing requirements.
Analyze and troubleshoot payment-switch-related production issues.
Support Visa, Mastercard, NPCI, and other payment network integrations.
Perform unit testing, SIT, UAT, certification, and production deployments.
Collaborate with business, operations, and client teams to deliver payment solutions.
Ensure high availability and performance of payment-switching systems.
Mandatory Skills
Hands-on experience in ACI Connex Development
Connex Script development/customization
ISO 8583 Message Processing
Payment Switching
ATM/POS Transaction Processing
Acquiring & Issuing Systems
Payment Network Integrations (Visa, Mastercard, NPCI)
Switch Interface Development
Transaction Routing & Authorization
Technical Skills
Java
Python
SQL
Node.js
XML
Connex Scripts
Preferred Skills
Experience with ACI payment products.
Knowledge of ATM/POS terminal integrations.
EMV transaction processing.
Production support and incident management.
Banking and Cards & Payments domain experience.
Exposure to switch certification projects.
📌 Aci Connex Developer Pune
🏢 Synechron
📍 Pune
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