MAINFRAME DEVELOPER

Role Summary

We are looking for aMainframe Developer with strong Credit Cards domain experience to design, develop, and supportmission‐critical credit card processing applications. The role involves working onhigh‐volume batch and online mainframe systems supporting theend‐to‐end credit card lifecycle, ensuring stability, performance, and regulatory compliance.

Key Responsibilities

Mainframe Development – Credit Card Systems

• Design, develop, and maintainmainframe applications supportingcredit card issuing platforms.
• Work acrosscard lifecycle modules, including:
  • Account setup & card origination
  • Authorization & transaction processing
  • Billing, statements, interest & fees
  • Payments, collections, disputes & chargebacks
• Develop and enhancebatch and online (CICS) programs for large‐scale transaction processing.

Technical Responsibilities

• Hands‐on development using:
  • COBOL / COBOL II
  • JCL
  • CICS
  • DB2
  • VSAM (KSDS / ESDS)
• Handlejob scheduling, restarts, abend resolution, and performance tuning.
• Performroot cause analysis (RCA) for production incidents and implement permanent fixes.

Integration & Platform Support

• Support integrations with:
  • Card networks (Visa / Client)
  • Fraud & risk systems
  • Core banking and downstream systems
• Implementscheme‐mandated and regulatory changes impacting card processing flows.
• Participate inplatform upgrades, enhancements, and modernization initiatives.

Testing & Production Support

• Supportunit testing, system testing, UAT, and production releases.
• ProvideL2 / L3 production support for card applications.
• Prepare and maintaintechnical documentation and runbooks.

Required Skills & Experience

Must Have

• 6–10+ years of hands‐onMainframe development experience
• Strong experience inCredit Cards domain (issuer side preferred)
• Expertise in:
  • COBOL, JCL, CICS, DB2, VSAM
  • Batch & online transaction processing
• Experience working inhigh‐volume, mission‐critical banking systems
• Strong analytical, debugging, and problem‐solving skills

Domain Knowledge (Mandatory)

• Credit card transaction lifecycle
• Authorization, clearing & settlement
• Billing cycles, interest, fees, payments
• Disputes & chargebacks
• Regulatory and card‐scheme driven changes

Good to Have

• Experience withcard processing platforms (issuer or processor‐hosted)
• Exposure tomainframe coexistence / modernization programs
• Knowledge ofAgile delivery models
• Experience working withglobal banking clients

Tools & Environment

• z/OS Mainframe
• Scheduling tools (e.g., CA‐7 / Control‐M)
• Change & release management tools

Incident management tools