Computer Software Engineer (Linux)- Contract

QUESSCORP SINGAPORE PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

QUESSCORP SINGAPORE PTE. LTD is seeking an IT Systems Engineer to manage Linux-based servers, ensure high availability, security, and performance. You will oversee virtualization, network devices, and data center operations to keep services running smoothly.

The role requires hands-on experience with VMware/KVM, Unix/Linux infra, and strong problem solving. On-call availability and collaboration with IT teams are expected to implement upgrades and maintain thorough documentation.

Qualifications

• 4+ years of IT systems engineering experience in Linux environments.
• Degree/Diploma/ITE in Computer Science/IT or related field.
• Strong knowledge of networking: switching, routing, firewalls.
• Experience with virtualization: VMware, KVM, FusionCompute.
• Unix/Linux infrastructure maintenance for 24x7 uptime.

Responsibilities

• Manage and maintain servers for high availability, security, and performance.
• Oversee virtualization technologies including hypervisors and VMs.
• Configure and manage network switches, routers, and firewalls for secure data flow.
• Implement and maintain security measures including firewalls and IDS/IPS.
• Monitor and optimize system performance in line with security policies.

Skills

Linux systems

Networking

Security

On-call support

Team collaboration

Education

Degree/Diploma/ITE in Computer Science/IT

Tools

VMware

KVM

FusionCompute

Nginx

Oracle

Job description

Key Responsibilities

• Manage and maintain servers, ensuring high availability, security, and performance.
• Oversee virtualization technologies, including hypervisors and virtual machines (VMs).
• Configure and manage network switches, routers, and firewalls to ensure secure and efficient data flow.
• Implement and maintain security measures, including firewalls and intrusion detection/prevention systems.
• Monitor and optimize system performance, ensuring compliance with security policies and standards.
• Provide support for data center operations, including hardware installation, maintenance, and troubleshooting.
• Collaborate with other IT teams to plan and implement system upgrades and patches.
• Maintain documentation of configurations, processes, and procedures.

Requirements

• Degree/Diploma/ITE degree in Computer Science, Information Technology, or a related field.
• Minimum of 4 years of experience in IT systems engineering, with a focus on Linux environments.
• Professional certifications such as CompTIA, or LPIC are a plus.
• Strong knowledge of networking concepts, including switching, routing, and firewalls.
• Experience with virtualization technologies like VMware, FusionCompute or KVM.
• Handling of apps such as JOM2.0, LOS1.5, & MOS in ITplatform such as Windows, Linux & VOE.
• Proactively maintain and develop all Unix/Linuxinfrastructure technology to maintain a 24x7x365 uptime service.
• Attend to reportedincidents, review logs and errors and to seek out solutions for hostedapplications (Vmwar e, Nginx, Oracle & etc.)
• Available for On-call support to attend to urgent production issues
• Basic Knowledge of Java, C++, Python and Web Development
• Familiarity with data center operations and best practices.
• Excellent problem-solving skills and attention to detail.
• Ability to work independently and as part of a team.

QUESSCORP SINGAPORE PTE. LTD

199801439D