Senior System Administrator - Linux, HA & Cloud (Hybrid)

Jobstreet Malaysia; Kuala Lumpur; On-site; MYR 90,000 - 150,000; Full time

Job summary

DataSpeed Sdn Bhd in Kuala Lumpur is seeking an experienced System Administrator to join our ICT team. This full‑time role focuses on maintaining, monitoring, securing, and optimising client IT infrastructure to ensure stability, security, availability and performance.

You will work with clients, internal teams and vendors on infrastructure planning, capacity management, and DR strategies, with opportunities for professional development in a hybrid environment.

Qualifications

• A diploma, advanced diploma, bachelor’s degree, or higher qualification in Information Technology, Computer Science, Computer Engineering, or a related field.
• At least five years of professional experience in a System Administrator/Infrastructure role.
• Strong hands-on experience administering Linux operating systems, with preference for RHEL-based distributions.
• Strong knowledge of the LEMP stack and databases such as MySQL, MariaDB, Redis.
• Experience in network administration (TCP/IP, DNS, DHCP, routing, firewalls, VPN).
• Proficiency in managing virtualization platforms (VMware, Hyper‑V, or KVM).
• Understanding high-availability and scalable architectures; security best practices; backup/DR; incident response.

Responsibilities

• Install, configure, administer, and maintain servers, operating systems, and network devices within client environments.
• Monitor availability and performance, proactively resolving issues to minimise downtime.
• Manage user accounts, permissions and access controls.
• Implement, maintain, and test backup and disaster recovery procedures.
• Apply security patches, software updates and system upgrades.
• Provide technical support to clients and end users.
• Investigate incidents, identify root causes, and implement fixes.
• Document system configurations, changes, and procedures.
• Collaborate with clients, internal teams, vendors on planning and capacity management.
• Support high-availability, scalability and business continuity initiatives.
• Ensure services comply with policies, security standards and regulations.

Skills

Linux administration

RHEL

LEMP stack

MySQL

MariaDB

Redis

Network admin

TCP/IP

DNS

DHCP

Firewalls

VPN

Virtualisation

VMware

Hyper-V

KVM

HA architectures

Security hardening

Backup & DR

Troubleshooting

Communication

Independent work

Cloud platforms

AWS

Azure

GCP

DevOps

Containers

Education

IT diploma/advanced diploma / bachelor’s degree or higher

Tools

Docker

Kubernetes

CI/CD tools

Job description

DataSpeed Sdn Bhd in Kuala Lumpur is seeking an experienced System Administrator to join our ICT team. This full‑time role focuses on maintaining, monitoring, securing, and optimising client IT infrastructure to ensure stability, security, availability and performance.

You will work with clients, internal teams and vendors on infrastructure planning, capacity management, and DR strategies, with opportunities for professional development in a hybrid environment.