Primary skills: Linux, databases, Sparrow Switch, card payments, and production support.

Secondary skills: SDLC, banking operations, ticketing tools, and ServiceNow.

Role type: Techno-functional production support.

Role Summary We are seeking a techno-functional Production Support Specialist with strong expertise in the Sparrow Switch application, card payment systems, ATM and POS environments, and Unix/Linux shell scripting. The role is responsible for supporting business-critical payment applications, resolving production incidents, coordinating with external vendors and payment networks, and ensuring reliable service delivery within defined timelines. Key Responsibilities Provide production support for the Sparrow Switch application and related payment systems. Monitor, investigate, and resolve incidents and problems in the production environment.

Develop, maintain, and troubleshoot Unix/Linux shell scripts.

Support ATM and POS terminal-related applications and transaction flows. Perform certification activities with Visa, MasterCard, and UPI. Support scheme installation and configuration activities. Analyze ISO 8583 messages, switch internal message formats, and terminal message formats. Use interchange simulators for Visa, MasterCard, and UPI transaction testing. Follow incident and problem management processes, including appropriate escalation and notification procedures. Work to defined deadlines and escalate risks, failures, or delays promptly. Prepare and maintain technical documentation in line with applicable standards, guidelines, and best practices.

Coordinate with CR2, Visa, MasterCard, other banks,



vendors, and internal teams.

Mandatory Skills and Experience Strong hands-on knowledge of the Sparrow Switch application. Strong experience in Unix/Linux shell scripting. Experience supporting card payment systems and payment-domain applications. Expert knowledge of ISO 8583 and switch internal message formats. Experience with interchange simulators for Visa, MasterCard, and UPI. Expertise in certification processes with Visa, MasterCard, and UPI.

Expert knowledge of payment scheme installation activities.

Robust understanding of SDLC and production support practices. Experience in incident and problem management. Ability to diagnose and resolve production issues quickly and effectively. Working knowledge of databases, banking systems, and ticketing tools. Preferred Skills Knowledge of ATM and POS terminals. Experience with POS tools and terminal management systems. Ability to decode terminal message formats.

Understanding of Hardware Security Module and A98 server application concepts.

Knowledge of the CardWorld Producer application on Windows Server 2008 and 2012. Knowledge of BWAC application software for ATM connectivity with the Sparrow application. Experience with CR2 products, including Studio and ATM branding tools. Familiarity with technical documentation standards, guidelines, and best practices.

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

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