Senior Infrastructure Engineer(Linux)

encora technologies pte. ltd.; Singapore; On-site; SGD 67,000 - 100,000; Full time

Job summary

Encora Technologies Pte. Ltd. is seeking an experienced Linux/Oracle Private Cloud and virtualization specialist for a 6-month extendable contract in Singapore.

The role covers Redhat/OEL environments, VCS/VVR clustering, Oracle RAC/ASM, and VMware/VCenter operations, along with Fusion Compute and related infrastructure tasks. The candidate will manage storage, file systems, and migration-related activities, with hands-on experience in OS upgrades, patching, and automation tools like Ansible,

Qualifications

• Experience in Redhat Linux, Oracle Linux, VCS Configuration and VVR setup.
• Raid/LVM/Veritas Volume Manager 5.x, Veritas cluster, Cluster File System (CFS)
• VCS, VVR, Redhat Cluster Suite installing/configuration and troubleshooting.
• OLVM Manager build and configure Oracle VM (Standalone/RAC)
• Oracle RAC setup configuration and ASM disk management.
• OS upgrade from RHEL6 to RHEL7 using Ansible
• VTM patching/installation using chef/spacewalk

Skills

Linux/Oracle Private Cloud

Redhat Linux

VCS/VVR/Cluster

Oracle RAC/ASM

VMware ESXi/vCenter

Fusion Compute

Patching/OS Upgrade

Tools

Spacewalk

Ansible

Chef

Puppet

Tar/Yum

Job description

06Months Extendable Contract

Skills:

Linux & Oracle Private cloud Competencies:

• Experience in Redhat Linux, Oracle Linux, VCS Configuration, and VVR setup.
• Raids, LVM, Veritas Volume Manager 5.x,Veritas cluster, Cluster File System (CFS)
• VCS, VVR, Redhat Cluster Suite installing/configuration and troubleshooting.
• OLVM Manager build and configure the Oracle VM(Standalone/RAC)
• Oracle RAC setup configuration, ASM disk addition/deletion.
• Performed RHEL6 to RHEL7 upgrade using Ansible
• VTM patching/package installation using chef/spacewalk tool.
• OLVM Manager configuration and upgradation.
• OAT Testing for DELL/HP Frames as part of DC Migration.
• Troubleshooting issues with operating system and hardware
• Processing requests such as creating file systems, and growing file systems online using different kinds of volume managers (VxVM, LVM, VXFS).
• Worked on Redhat Physical, Oracle Linux& Oracle Virtualization servers.
• Linux OS upgrade, kernel patching, OS bundle, firmware upgrades
• Configure the Storage in Hypervisor. Present and Unpresent the storage repository for the frame.
• Experience in P to P Project, P to Xproject, SunSolaris to X project and DC migration.
• Supporting HP DL GEN8/9/10, DELL Poweredge, X-Fusion Hardware
• Creating and managing virtual machines and installing VM Tools into VM’s.
• Configure RAID and LVM advance filesystem.
• Experience on disk mirroring and VG export and import.
• Configure and Manage basic services(Disk, Network, etc.) on Redhat Operating system.
• Installation, Configuration and maintenance of Linux Server.
• Install, remove and query new packages using rpm and yum/spacewalk, SUMA.
• Network bonding configuration.
• Experience on ext3,ext4/xfsfilesystems.
• Experience on file system administration.
• Creating &Managing users and groups.
• Static IP assigning to Ethernet interfaces.
• Backup and Restore of user profile and data using tar command.
• Performed troubleshooting steps –Tested and installed the latest software on server for end users.
• Performed routine checks on the Linux servers of the firm.
• Puppet client installation and configuration and enable auto healing.
• Performance Tuning - Top, Free, Sar, mpstat, iostat, netstat
• Performing daily performance checks using top, sar and vmstat commands.
• Hands-on with root password recovery.
• Expertise in configure the NFS servers, autofs, DNS servers on Linux servers
• Creating and managing the NAS file systems.

VMware/Esxi Competencies:

• Design, implement, and maintain VMware vSphere virtualization infrastructure, including ESXi hosts, vCenter Server,and vSAN
• Configure and manage virtual networks, storage, and other virtualization components
• Monitor and troubleshoot VMware vSphere environment for performance and availability
• Create and maintain documentation for VMware vSphere environment
• Design and implement disaster recovery and business continuity plans
• Specialized on VMware ESX, ESXI with vCenter Management
• Expertise in configure, build, implement and administrator ESXI servers including patches and updates, and assist in resolving associated system outages and other incidents.
• Excellent experience and knowledge with design installation and implementing VMware ESX server, VMware virtual center, setting up V-Motion, HA, DRS, and related VMware product as such as VM Workstation, VMware converter VM Backup product and other products for virtualization.
• Expertise on ESXI Architecture, guest OS installation, setting up of VM priorities, Cloning, and Snapshots.
• Expertise in DR plan and Disaster Recovery Exercises.
• Expertise in VM V-Motion, Storage V-Motion, Vcenter to Vcenter migration.

Fusion Compute Competencies:

• VM migration from VMware to Fusion compute using migration director
• Huawei Fusion Compute / Fusion Manager /Fusion Access
• Cluster Configuration (HA, DRS, Live Migration)
• Storage and Network Virtualization(DVS, FC)
• Host Management & Capacity Planning
• Manage host registration, resource pool configuration, and virtual machine lifecycle operations.
• Coordinate with network and storage teams for virtual switch (vSwitch) setup, VLAN tagging, and storage LUN assignments.
• Manage day-to-day BAU operations of Huawei Fusion Compute clusters across production and DR sites.