Production Application Support ( Cards & CORTEX)

About This Role

Role Overview:

We are looking for an experienced IT Production Support professional with a strong 

background in card transaction systems, reconciliation, clearing, and settlement. The ideal 

candidate should have extensive hands-on experience in troubleshooting and supporting 

critical applications, specifically related to card issuance and transaction authorization. 

K ey Responsibilities:

 Provide support for production environments related to card transaction systems, 

ensuring minimal downtime and quick resolution of issues.  

 Troubleshoot and resolve complex technical problems within IST, CORTEX card 

issuance, transaction authorization, and settlement systems.  

 Work on reconciling and clearing transaction data to ensure accuracy and 

consistency across platforms.  

 Collaborate with internal teams and external vendors to ensure smooth operation 

of all card systems, including ATM switches and merchant settlement solutions.  

 Monitor and manage CORTEX and related card application performance, 

conducting necessary system health checks.  

Key Skills and Experience:

1. Reconciliation, Clearing, and Settlement:

o Strong experience in transaction reconciliation, clearing, and settlement 

processes for card payment systems.  

o Ability to identify discrepancies and support system improvements for 

more efficient reconciliation.  

2. CORTEX Card Issuance and Transaction Authorization Architecture:  

o In-depth understanding of the CORTEX platform for card issuance and 

transaction authorization.  

o Troubleshooting expertise within the CORTEX transaction flow, including 

card authorization, settlement, and related system integrations.  

Classification: Private 

3. Card Application Expertise:

o Proven experience with ATM Switch systems IST or CORTEX 

transaction authorization applications.  

o Hands-on experience with the CORTEX card issuance process, ensuring 

smooth operations for card management and activation.  

o Familiarity with CORTEX merchant settlement and reconciliation systems 

for merchant transactions.  

4. S trong Technical Skills – Oracle PL/SQL:

o Strong hands-on experience in Oracle PL/SQL development and support.  

o Ability to write, analyze, and optimize complex SQL queries, stored 

procedures, functions, and packages.  

o Experience in troubleshooting production issues using database-level 

analysis.  

o Strong understanding of data models, indexing, performance tuning, and 

query optimization.  

o Ability to analyze large transaction datasets for reconciliation and issue 

resolution. 

5. Knowledge of Card Schemes:

o Solid understanding of various card schemes including VISA, MasterCard, 

and other international payment networks.  

o Experience in managing issues related to transaction authorization, 

clearing, and settlement across different card schemes.  

6. Technical Skills:  

o Strong analytical and troubleshooting skills to diagnose and resolve 

production issues in a timely manner.  

o Ability to work in high-pressure situations and prioritize tasks effectively 

to meet SLA requirements.  

o Experience with system monitoring, log analysis, and incident 

management tools. 

Preferred Qualifications: 

o Experience with production support in a financial or payments 

environment.  

o Familiarity with relevant security standards and best practices in the card 

payments industry.  

o Strong communication skills, both verbal and written, to effectively 

communicate with internal teams and external stakeholders.  

Education and Experience:

o Bachelor’s degree in Information Technology, Computer Science, or a 

related field.  

o 7 to 15 years of experience in production support or a similar role within 

the payments or financial services industry.