GANESAN PERUMAL
Singapore
Summary
Dynamic Senior System Engineer with extensive experience at UBS, specializing in Azure cloud infrastructure and automation. Proven track record in leading successful data center migrations and enhancing system performance. Adept at fostering team collaboration while implementing robust security measures and compliance standards. Skilled in Unix/Linux engineering and mentoring junior staff.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Senior System Engineer
UBS - Union Bank of Switzerland (Contracted via Infosy, HCL, HAYS, NTT DATA, CTS, Softenger, Encora)
Singapore
12.2009 - 04.2025
- Administered Azure VMs, Storage Accounts, and Resource Groups to support hybrid cloud infrastructure.
- Automated patching and provisioning using Red Hat Satellite and Addible Playbooks across 1000+ servers.
- Defined RBAC roles and security policies to align with compliance standards.
- Automated user and system configurations using IaC and GitOps best practices.
- Led Unix migration for global DC transitions (SG, HK, AU, JP, CN) with zero unplanned downtime.
- Migrated Solaris farm & SAN storage between DCs with highly optimized change windows.
- Orchestrated NetApp NAS migration (qtrees, home directories, app shares) globally across thousands of clients.
- Provisioned and configured low-latency Unix trading platforms, integrating with Puppet for config parity.
- Conducted multicast and OS tuning to meet performance SLAs.
- Delivered fully validated environments for critical equity and FX applications.
- Resolved high-severity Unix issues across global infra, ensuring SLA compliance.
- Provided 24/7 support and mentoring to L1/L2 teams.
- Authored SOPs and training materials to upskill new engineers.
- Led shift operations and vendor coordination.
- Supported PMs with effort estimation, project updates, and executive reporting.
- Key contributor to MiFID II-compliant Time Sync rollout using Timekeeper.
System Engineer
Lehman Brothers India Pvt. Ltd
Mumbai
08.2007 - 11.2008
- Maintained critical Unix/Linux environments in a global banking context.
- Supported storage systems and resolved VCS cluster issues.
- Automated admin tasks through scripting, improving uptime and response times.
Systems Operations Specialist
IBM Global Services
Bangalore
12.2005 - 08.2007
- Remotely managed Unix infrastructure for U.S. banking systems.
- Administered backups using Veritas NetBackup and managed job scheduling via Control-M.
- Supported performance tuning, backups, and system monitoring.
- Client: Capital-One Bank (USA)
Education
Bachelor of Computer Science -
Periyar University
IndiaSkills
- Unix/Linux engineering
- Azure cloud infrastructure
- Automation and scripting
- Infrastructure as code
- Configuration management
- Data center migration
- High availability solutions
- Storage management
- Kubernetes orchestration
- Docker containerization
- VMware virtualization
- Security patching strategies
- Kernel tuning techniques
- Compliance adherence
- Monitoring tools expertise
- Scheduling tools proficiency
- Cloud platforms knowledge
- Networking fundamentals
- Version control systems
Certification
- Red Hat Certified Engineer (RHCE)
- Sun Solaris Certified System Administrator (SCSA-11)
- ITIL v3 Foundation
Languages
- English
- Tamil
- Hindi
Personal Information
Marital Status: Married
Residency
Singapore Permanent Resident
Timeline
Senior System Engineer
UBS - Union Bank of Switzerland (Contracted via Infosy, HCL, HAYS, NTT DATA, CTS, Softenger, Encora)
12.2009 - 04.2025
System Engineer
Lehman Brothers India Pvt. Ltd
08.2007 - 11.2008
Systems Operations Specialist
IBM Global Services
12.2005 - 08.2007
Bachelor of Computer Science -
Periyar University
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