Logeswaran Natarajan, Mainframe System Programmer

Logeswaran Natarajan

Mainframe System Programmer

IBM

Location
India
Education
Master's degree, Computer Applications
Experience
10 years, 0 Months

Share My Profile

Block User


Work Experience

Total years of experience :10 years, 0 Months

Mainframe System Programmer at IBM
  • United Arab Emirates
  • My current job since February 2017

Clients 1. DLG UK based Insurance.
2. Princess Cruise Lines.
3. American Family Insurance

Mainframe System Programmer at Capgemini - India
  • India - Bengaluru
  • My current job since February 2017

● Upgraded the IBM Print Service Facility (PSF) software v4.6.
● Upgraded the CA/Broadcom’s Common Services v15.0 and CA GEN v8.6 software.
● Supported z/OS 2.2 upgrade which involves ordering the software, download, and installing IBM ServerPac
● Roll-out z/OS of 2.2 maintenance on quarterly basis.
● Upgraded the Catalog Recovery from Plus v7.5 to v7.7
● Upgraded the FDR software v54L89.
● Upgraded JCLPlus v4.4J software from v4.3.
● Applied Quarterly fixes for Vanguard Security Centre software.
● Applied the BMC Mainview maintenance
● Applied CA7, CA View and JCLCheck software fixes.
● Updated various products license includes CA, Compuware, Syncsort, SAS, Quickref, JCLPREP, Tubes and VPS license.
● Worked in z/OS and JES2 Exits such as adding and deleting the RACF IRREVX01 Exit.
● Activated the JES2 checkpoint level from z11 to z22 to support the new enhancements.
● SYSPLPEX maintenance and Enabled Coupling Facility LOSS Connectivity Recovery Management (CFLCRMGMT) feature and activate the new Coupling facility policies.
● Installation and activation of new WLM policy and add HIS task to SYSSTC Transaction Name Group in WLM.
● Implemented Hardware Instrumentation Services (HIS) started task and enabled HIS services in Support Element (SE) via HMC.
● Hardware configuration such as Activate new IODF to support additional devices through HCD.
● Successfully completed the entire Disaster Recovery (DR) exercise from offshore with Onsite team support.
● Flash the disks from primary to DR site using the IBM Copy Service Manager (CSM)
● Monitoring the storage hardware subsystems including IBM DASD (DS8K), IBM Automated tape library and IBM Virtual tape library (TS7700).
● Experience in LPAR management such as shut down the Central Processors (CP) dynamically in z12 EC processor.
● Upgraded IBM SCRT v27.1 and v28.1 and generate the monthly SCRT Report and submit to IBM.
● Worked in APF, LNKLST updates and LLA refresh and SYS1.Parmlib and Proclib member updates.

Senior Consultant at Capgemini
  • United Arab Emirates
  • February 2017 to March 2021
CICS System Programmer at PEMCO Mutual Insurance
  • January 2015 to February 2017

z/OS and CICS System Programmer:
•Upgraded the Macro4 vendor Common services, Trace Master, Dump Master and InSync
as part of third-party products compatibility support for z/OS 2.1 upgrade.
•Rollout the z/OS 2.1 RSU maintenance for quarterly once.
•Applied BMC Mainview monthly fixes.
•Quickref installation and database update.
•Provided extensive systems-related troubleshooting using IPCS dump analysis.
•Applied CICSTS v4.2 RSU Maintenance, rollout the maintenance to test and Prod regions.
•Installed the Lists, Groups, and the other Resources in CICS resource definition (CSD).
•Build the new CICS SIT module; updated CICS GRPLIST and CICS Transaction.
•Knowledge of all CICS parameters that control performance in a CICS MRO environment.
•Installed CICS/TS related ISV software’s using SMP/E.
•Increased Log stream and Stage dataset sizes for CICS region.
•Increase and update the MSU values weightage through HMC.
•Maintaining system PARMLIB and PROCLIB updates.
•Incident and Change management and Oncall on rotational basis

Technical Lead at Cognizant Technology Solutions
  • United Arab Emirates
  • January 2015 to February 2017
Mainframe System Programmer
  • June 2014 to December 2014

Education

Master's degree, Computer Applications
  • at AMS Engineering CollegeAnna University
  • August 2008

MCA

Specialties & Skills

COMPUTER ASSOCIATES PACKAGES
COMPUTER HARDWARE
OPERATING SYSTEMS
PROGRAMMING
UPGRADES
CATALOGS

Languages

English
Expert

Training and Certifications

IBM System z and z/OS Fundamentals Mastery (Certificate)
Date Attended:
June 2014

Hobbies

  • Books