Mainframe System Programmer

7 days ago

Taguig, National Capital Region, Philippines Socium - Teams Done Differently Full time

Role Overview

Responsible for daily BAU support and operations for Mainframe Storage and z/OS.

Works closely with client SMEs, handles incidents (P1/MI), performs RCA and changes, and supports hardware/OS/ISV upgrades.

Includes business hours support plus on-call rotation.

Target system availability:
99.99%
.

Experience Required

  • 10+ years
    hands-on experience in Mainframe z/OS and Storage Administration (L3 level).

Key Responsibilities

  • Monitor and maintain DASD tools and storage performance
  • Allocate and manage DASD volumes, datasets, and pooling structures
  • Maintain storage standards and recommend best practices
  • Capacity forecasting and space management
  • Catalog management and data migration
  • Troubleshoot and resolve all DASD/storage issues
  • Perform regular backups and support DR activities
  • Plan and execute hardware lifecycle and upgrade tasks
  • Manage storage replication and VTL environments

Technical Requirements

  • Mainframe Hardware: z14, z15, z16
  • z/OS v2.x, JES2, DFSMS, RACF/ACF2, TCP/IP, VTAM, OMVS
  • RMF/SMF, SMP/E, UserMods, exits
  • IPL/POR procedures, console operations
  • Tools: OMEGAMON, TEPS, Netview, SIEM
  • Scripting/Automation: Assembler, REXX, JCL, CA-OPS/MVS
  • Storage Hardware: Hitachi VSP 5500, IBM DS8000, IBM TS7000, EMC VMAX/PowerMax, DLm
  • Replication: IBM Metro/Global Mirror, Copy Services, EMC SRDF, EMC GDDR
  • Software: DFSMS suite, CA-1, IBM CSM
  • Features: FlashCopy, SnapVX, zDP, SafeGuarded Copy
  • DC-to-DC storage replication and VTL management
  • Capacity planning, tuning, and MIPS optimization

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