Linux Administrator – VMware Specialist

Tech Aalto Pte ltd; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Tech Aalto Pte ltd in Singapore seeks an experienced Mid Senior Unix Administrator with strong VMware expertise to join our infrastructure operations team. The role focuses on administering and optimizing Unix/Linux systems (primarily RHEL) and managing VMware vSphere environments to support enterprise applications.

You will work independently on complex issues, collaborate with cross-functional teams, participate in on-call rotations, and help design secure automation, monitoring, and disaster

Qualifications

• Bachelor’s degree in Computer Science, Information Technology or related field.
• 5 years of hands-on Unix/Linux system administration experience.
• 3 years of hands-on VMware vSphere ESXi and vCenter experience.
• Strong understanding of TCP/IP, DNS, NFS and networking concepts.
• Experience with storage systems and backup solutions.
• Familiarity with ITIL practices and change management.

Responsibilities

• Install, configure and administer Unix/Linux servers (primarily RHEL) in production and nonproduction environments.
• Manage and support VMware vSphere infrastructure including ESXi hosts, vCenter, clusters and virtual networking.
• Perform system monitoring, performance tuning and capacity planning for Unix/Linux and VMware platforms.
• Implement security hardening, patching and compliance standards.
• Troubleshoot complex hardware, OS, virtualization, networking and storage issues.
• Automate tasks using Bash, Python, Perl or Ansible.

Skills

Unix/Linux administration

VMware vSphere

RHEL

Scripting

Ansible

Networking TCP/IP

Backup & DR

OpenShift

Education

Bachelor’s degree in CS/IT or related field

Tools

VMware ESXi

vCenter

OpenShift

Ansible

Job description

Job Summary

We are seeking an experienced Mid Senior level Unix Administrator with strong VMware expertise to join our environment build and infrastructure operations team. The ideal candidate will be responsible for administering maintaining and optimizing Unix Linux systems as well as managing virtualized environments on VMware vSphere. This role requires experts with hands on technical skills, the ability to work independently on complex issues and strong collaboration with cross functional teams in an enterprise environment.

Key Responsibilities

• Install configure and administer Unix Linux servers primarily RHEL in production and nonproduction environments
• Manage and support VMware vSphere infrastructure including ESXi hosts vCenter Server clusters resource pools and virtual networking
• Perform system monitoring performance tuning and capacity planning for Unix Linux and VMware platforms
• Implement and maintain security hardening patching and compliance standards CIS STIG internal controls
• Troubleshoot complex hardware OS virtualization networking and storage issues including application to database connectivity problems
• Manage file systems storage allocations disk partitioning LVM configurations volume expansions and mountpoint restructuring
• Automate operational tasks using Bash Python Perl or configuration management tools Ansible preferred
• Maintain and improve backup snapshot and disaster recovery strategies for Unix and VMware environments
• Partner with application database and DevOps teams to support deployments upgrades and system migrations
• Document architecture configurations SOPs and troubleshooting procedures
• Participate in on call rotation and provide afterhours support when required

Required Qualifications

• Bachelor’s degree in Computer Science Information Technology or related field
• 5 years of hands-on experience in Unix Linux system administration
• 3 years of hands-on experience with VMware vSphere ESXi and vCenter
• Strong understanding of networking concepts TCPIP DNS NFS etc
• Experience with storage systems SANNAS and backup solutions
• Familiarity with ITIL practices and change management processes

Preferred Qualifications

• VMware Certified Professional VCP certification
• Linux Administration Certification eg RHCSA RHCE
• Experience with Kubernetes containers or cloud platforms AWS or Azure is a plus

Soft Skills

• Strong analytical and problem-solving skills
• Excellent communication and documentation abilities
• Ability to work independently and in a team oriented environment
• Detail oriented with a proactive approach
• Design and implement secure automation solutions
• Maintain or setup monitoring tools notifications and analytics
• Maintain version control systems and configuration management tools
• Lead the design and implementation and maintenance of RedHat Linux environments
• Experience in automation scripts and use of Ansible for system configuration and orchestrations
• Provide virtualization and containerization solution using VMware and RedHat OpenShift
• Expert in support and troubleshooting for critical system issues
• Coordinate with development team and architects to facilitate continuous integration and delivery pipeline
• Adhere to industry standards and best practices

Qualification

• Worked on Linux platform

• Experienced as full stack developer with strong background in tool integration
• Experienced on programming languages and frameworks such as HTMLCCS JavaScript Java Python Nodejs Angular etc
• Familiarity with database MYSQL MongoDB web servers Apache and UIUX design
• Handson experience of Ansible for automation and configuration management
• Experienced with OpenShift for container orchestration and management
• Experience in VMware infrastructure and its integration with physical and cloud environments
• Knowledge on scripting such as shellProblem solving ability
• Relevant certification