Dedicated System Engineer adept at cultivating long-term partnerships with vendors and clients. Expertise includes installing, configuring and monitoring complex systems and infrastructures. Offering successful career history comprising more 20 years.
Senior IT professional with extensive experience across the mainframe lifecycle from architecture and design to implementation and support. The senior roles have encompassed that of system programmer, storage administrator and performance analyst.
Responsibilities & Experiences:
- Capacity planning and performance tuning for the Mainframe infrastructure including the z/OS and IBM Storage to ensure the optimal system and application availability.
- Maximized system availability through development and testing of contingency plans.
- Negotiated with vendors, outsources and contractors to secure contracts and set SLAs.
- Software license management to ensure the best pricing model for the business and reduce the cost
- Researched and recommended new technologies and strategies for improving system performance.
- Developed and documented the performance measurements, procedures and standards.
- Performed cost-benefit analyses for proposed systems.
Skills used: IBM DASD DS8K, IBM Tape library TS7700, SAS, MXG WLM, Control-M, TWS, Spectrum Control, SMF, RMF
Responsibilities & Experiences:
- Designed and coded a wide variety of SAS programs to evaluate z/OS CPU, I/O, DB2 and storage performance statistics.
- Provide Mainframe Impact Assessment (includes DB2, DASD, and Mainframe stats for every SAP release).
- Took part in Mainframe z/OS migration and Storage Refresh high level design.
- Produced Excel-based graphs and spreadsheets to compare performance reality with SLA goals.
- Utilized modelling tools to forecast DASD resource requirements and justify storage upgrades to meet business service levels and future workload needs.
Skills used: GDPS HyperSwap, PPRC, Flash Copy, DFSMS, DFDSS, DFHSM, IBM DS8870, HDS USP-V & VSP, EMC DMX-3, HP XP P9500, IBM tape library, IBM VTS, REXX, JCL and SAS.
Responsibilities & Experiences:
- Take part in the DB2 cloning procedures using DFHSM interface
- Manage customer’s IBM storage environment via DSCLI or Spectrum
- Lead DASD migration for legacy and leverage systems
- Coordinate & lead system DR tests for the storage team
- Take part in Mainframe Storage Refresh high level design
- Lead IBM DS8870 workload test before DASD migration
Skills used: All Compuware Mainframe Solutions (File-AID, Abend-AID, Hiperstation, Strobe, Xpediter) and ChangePoint, IBM z/OS MVS base components, JCL, COBOL, REXX, Assembler, CLIST, TSO/ISPF, RACF
Responsibilities & Experiences:
- Provide technical support for all mainframe solutions for customers in Australia and Asia Pacific
- Create testing script using REXX and COBOL to reproduce customer’s problem inhouse
- Trouble shooting and problem resolution
Skills used: Tivoli Storage Manager
Responsibilities & Experiences:
- Manage client storage pool and volume
- Backup/restore & archive/retrieve client data
- Maintain clients’ server environment
Skills used: All OS/390 & z/OS base components, TSO/ISPF, JCL, RACF
Responsibilities & Experiences:
- Monitor IBM Asia Pacific & Australia MVS clients’ systems and batch operation
- Respond to all system alerts with in proper time frame
Skills used: OS/390 & z/OS Installation and maintenance, TSM, VTS, StorageTek Virtual Tape, JCL, REXX, SMPE, RACF, DFSMS all components, XRC, PPRC, and Flash Copy.
Responsibilities & Experiences:
- Maintain and test OS/390 & z/OS operating systems in customer sites
- System programming services: install, implement, test and maintain OS/390 & z/OS operating systems and storage software - Implement TSM server on OS/390 & z/OS, and clients on Window NT/XP, Linux390, OE, and AIX at major bank customer
- Integrate customers’ storage environments using SAN technology