Senior Mainframe Developer

7 days ago

Manila, National Capital Region, Philippines Clicktek Consulting, Inc Full time ₱900,000 - ₱1,200,000 per year

About the Role

You will own new feature delivery and production fixes for the cruise‑booking engine hosted on IBM z/OS. Beyond hands‑on coding, you'll rotate in L3 incident response to restore service quickly.

Key Responsibilities

  • Design, code, and unit‑test COBOL programs running under CICS TS
  • Maintain VSAM files, DB2 schemas, and COMMAREAs/CHANNELs
  • Create/modify JCL for nightly fare refresh, reconciliation, and settlement jobs
  • Tune SQL, compiler, and LE settings to reduce CPU/MSU costs
  • Participate in code promotion via Endevor → future Git/DBB pipelines
  • Provide L3 support: dump analysis, root‑cause, perm fix
  • Produce specs, data‑flow diagrams, and release notes

Core Qualifications

  • 5 + yrs COBOL on z/OS (3 + yrs in CICS online)
  • Strong VSAM, DB2, JCL, TSO/ISPF; debuggers (Debug Tool, Abend‑Aid)
  • Familiar with service enablement (CICS Web Svcs, z/OS Connect)
  • Incident‑management mindset and clear English communication

Nice to Have

  • Cruise, airline, or hospitality booking experience
  • Exposure to MQ or Java middleware that calls CICS APIs

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