Vishylean Rajendran
Summary
As a System DevOps, I bring a robust background in managing server infrastructures and data-center operations across various platforms and solutions toward automation. My expertise lies in meticulously planning, installing, configuring, and optimizing IT infrastructures to ensure high availability and performance. I have a proven track record of developing and implementing solutions that are closely aligned with business objectives, fostering organizational growth, and enhancing infrastructure efficiency. My enthusiasm for embracing new technologies is matched by my commitment to elevating service quality within dynamic, fast-paced work environments.
Overview
9
9
years of professional experience
Work History
Assistant Vice President / Senior Associate
DBS Bank
03.2022 - Current
- Spearheaded server provisioning automation for Oracle Linux VMs with integrated Oracle databases on OLVM.
- Streamlined CI/CD processes utilizing Jenkins and Bitbucket for efficient pipeline management.
- Developed and managed system monitoring and log management solutions through tailored scripting.
- Implemented and sustained Oracle Linux STIG hardening protocols bank-wide via Puppet, featuring auto-healing capabilities.
- Conducted Proof of Concept (POC) evaluations for new products in market including SUSE, Oracle, Mirantis, Ubuntu and RedHat.
- Enhanced operational efficiency by automating Business As Usual (BAU) tasks and Disaster Recovery procedures using APIs.
- Provided expert support to operations teams in build and release automation, coupled with advanced troubleshooting.
- Develop and onboard backend codes for infra platform automations into marketplace portal.
Senior Linux Engineer
NTT DATA – DBS BANK
12.2020 - 02.2022
- Orchestrated UNIX platform migrations (Solaris, AIX, Oracle Linux) for Data Center relocations.
- Managed Oracle Private Cloud operations, including VM provisioning and incident resolution across Asia-Pacific regions.
- Executed OLVM product testing for integration with DBS banking standards, preparing for deployment in a high-stakes financial environment.
- Served as Technical Lead for Oracle Private Cloud OLVM platform setup within DBS India
- Directed OS and hardware infrastructure enhancements for Oracle Private Virtual Cloud.
- Spearheaded security hardening initiatives on the Oracle Linux Platform to ensure robust protection.
- Conducted Disaster Recovery operations, ensuring seamless Oracle database VMs transitions between primary and secondary Data Centers.
- Developed automation scripts to streamline and optimize routine system administration tasks.
- Contribute in production troubleshootings and solutions
System & Network Engineer
NANOSTREA PTE LTD
09.2019 - 12.2020
- Network & Server Infrastructure Design and Implementation.
- Proficient in Linux & Windows Server Administration with a focus on Security Assessments.
- Skilled in Firewall Management and VPN Configuration, including Palo Alto, PFsense, and Fortigate.
- Competent in Backup Administration and Data Replication utilizing VEEAM.
- Experienced in VMware ESXi Management and executing Major OS Upgrades.
- Established Internal Patching Environments and Server Automation Systems.
- Knowledgeable in Filesystem Administration, covering SMB, NFS, LVM, FDISK, and Encryption.
- Proficient in OS Services Administration, including DHCP, DNS, NTP, SSH, and FTP.
- Hands-on experience with Hardware Management and On-Site Data Center Operations.
System & Network Engineer
Comtel Solutions (NCS Pte Ltd)
03.2018 - 08.2019
- Expertise in Exadata, RHEL VM, and physical server administration.
- Proficient in automation BAU tasks using Ansible playbooks and Bash scripting.
- Skilled in installing, configuring, and hardening Linux servers.
- Adept at performance tuning and operating system migrations.
- Experienced in patching and configuring ESXi hosts.
- Competent in VM deployment and resource management within ESXi clusters.
- Proactive monitoring, troubleshooting, and capacity planning for vSphere environments.
- Seamless migration of ESXi hosts and VMs across data centers.
- Proficient in the administration and upgrading of CheckPoint & Palo Alto firewalls, and F5 BIG-IP Load Balancers.
- Capable of managing public-facing virtual servers and load balancing.
- Knowledgeable in Cisco routing and switching.
- Experience with Microsoft Windows Server 2012 R2, VMware, Networker Backup, and XtremIO/VNX SAN storage support and administration.
Service Delivery Consultant (UNIX)
DXC Technologies / HPE
02.2016 - 02.2018
- Managed 24/7 shift rotations, ensuring continuous Production Support for high-profile clients such as CIMB Bank, American President Lines, Neptune Orient Lines, and Cathay Pacific Airlines on UNIX platforms.
- Proficient in UNIX Administration across diverse platforms, including SUN Solaris, IBM AIX, and Red Hat Enterprise Linux.
- Skilled in Power HA cluster environments, providing robust support and maintenance.
- Experienced with NIM environments, adept at network installations, backups, restorations, and system management using mksysb, LPP resources, and Spot creation.
- Expertise in VIO and HMC administration for efficient resource management of LPARs.
- Executed patches and upgrades for AIX Technology Levels, Service Packs, and OS layer ifixes, ensuring system integrity and performance.
- Advanced knowledge in filesystem administration utilizing AIX & RHEL Logical Volume Manager and Veritas volume manager.
- Developed Bash scripts to streamline and automate system processes.
- Actively participated in production Disaster Recovery and Tech Refresh activities, maintaining system resilience.
- Delivered prompt support during high-priority incident calls, consistently meeting SLA requirements for resolution.
Education
Bachelor of Information Technology - Data Communication And Networking
Multimedia University Malacca
Malaysia01-2015
Foundation in Information Technology - Information Technology
Multimedia University, Cyberjaya
Malaysia01-2012
High School Diploma -
SMK Subang Jaya
Malaysia01-2010
Skills
- Red Hat Certified Engineer (210-020-434)
- Red Hat Certified System Administrator (210-020-434)
- ITILv3 Foundation
- Puppet Training - Getting Started With Puppet
Timeline
Assistant Vice President / Senior Associate
DBS Bank
03.2022 - Current
Senior Linux Engineer
NTT DATA – DBS BANK
12.2020 - 02.2022
System & Network Engineer
NANOSTREA PTE LTD
09.2019 - 12.2020
System & Network Engineer
Comtel Solutions (NCS Pte Ltd)
03.2018 - 08.2019
Service Delivery Consultant (UNIX)
DXC Technologies / HPE
02.2016 - 02.2018
Bachelor of Information Technology - Data Communication And Networking
Multimedia University Malacca
Foundation in Information Technology - Information Technology
Multimedia University, Cyberjaya
High School Diploma -
SMK Subang Jaya
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