Gurvinder Singh
Seasoned Unix/Linux and Oracle Database Administrator
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About
Seasoned Unix/Linux and Oracle Database Administrator with 24+ years of IT experience spanning enterprise system administration, Oracle database management, and SAP Basis support. Proven expertise in AIX/Linux administration, Oracle database installation, migration, backup/recovery, performance tuning, and troubleshooting in mission-critical environments. Strong track record of managing large-scale infrastructure projects, database upgrades, and data center migrations with minimal downtime.
Adept at collaborating with stakeholders, leading teams, and ensuring high availability and performance of systems.
Experience
Senior System Lead - Kyndryl Solutions Pvt. Ltd.
(2020-08)
- Administer and manage AIX servers (300+ LPARs) and Oracle DB environment.
- Lead AIX/Linux estate migration to Vodafone/Kyndryl DC with minimal downtime.
- Provide day-to-day service delivery and technical leadership for Unix and Oracle DB.
- Collaborate with application teams for Oracle DB change management, patching, and troubleshooting.
General Manager (Head IT SAP Infra/Basis) - Trident Ltd.
(2019-06 - 2020-08)
- Designed infrastructure for S4HANA migration (AIX → VMware) including CPU/memory sizing and Dell hardware procurement.
- Oversaw DBA, SAP Basis, Unix/Windows Admin, and Backup teams.
- Performed Oracle database monitoring, tablespace administration, backups, and refresh (PRD → QA).
- Executed Oracle & HANA DB patching/upgrades and performance tuning.
- Managed storage migration from IBM V7000 to Hitachi VSP.
Service Delivery Manager - IBM India Ltd.
(2016-08 - 2019-06)
- Delivered SAP and Oracle DBA services across large landscapes.
- Directed Oracle DB upgrades, advanced compression, and patching.
- Performed Oracle/HANA system refreshes (PRD → QA).
- Lead incident management, troubleshooting, and performance tuning activities.
General Manager IT - Trident Ltd.
(2015-03 - 2016-07)
- Managed SLA, escalation, and project delivery for SAP/Oracle systems.
- Lead migration of SAP QA Landscape between data centers.
- Installed and configured Oracle DB, managed backups & archive logs with brtools.
- Tuned DB parameters (spfile/pfile), performed system refresh and support package implementation.
Consultant (Team Lead) - Dell Services
(2008-05 - 2015-02)
- Managed team of Unix/Linux admins and Oracle DBAs.
- Handled Oracle DB patching/upgrades, OS migrations, and consolidation projects.
- Provided DBA escalation support and vendor coordination.
Sr. System Administrator - ACS India Pvt. Ltd.
(2007-04 - 2008-05)
- Administered AIX/Linux for SAP and Oracle Apps in GPFS/HACMP.
- Performed DB and system recovery, DR activities, and backup management.
System Administrator - IBM India Pvt. Ltd.
(2006-02 - 2007-04)
- Supported Oracle DB and AIX/Linux systems for SAP/Oracle Apps.
- Managed DB backups (TSM), recovery, patching, and monitoring.
System Administrator - Wipro Infotech
(2005-07 - 2006-01)
- Installed and upgraded AIX on RS/6000 P-Series systems.
- Performed user administration, filesystem management, and system backups.
Sr. Customer Support Engineer - Spectra Computech Pvt. Ltd.
(1997-08 - 2005-07)
- Lead team managing AIX/Unix systems at banking and government clients.
- Handled backups, LPAR administration, printer/server management.
Customer Support Engineer - Prime Computers
(1996-01 - 1997-07)
- Installed/configured PCs, maintained software/hardware, and preventive maintenance.
Education
B.E. - Electronics & Communication - Gulbarga University (1991)

