Systems Engineer (Dev Ops)

Tescom (S) Software Systems Testing Pte Ltd; Singapore; On-site; SGD 50,000 - 70,000; Full time

Job summary

A leading software testing company in Singapore is seeking an IT System Administrator to provide onsite technical support and manage system performance. The ideal candidate must have at least 3 years of experience, strong knowledge of Linux and Windows environments, and familiarity with backup systems and DevOps tools. You will be responsible for incident management, preventive maintenance, and documentation. This position offers a dynamic work environment with opportunities for continuous improvement.

Qualifications

• Minimum 3 years of experience in IT system administration or infrastructure maintenance roles.
• Strong knowledge of Linux (RHEL) and Windows Server (2019) environments.
• Familiar with container platforms (e.g., OpenShift), middleware (IBM ACE, WebSphere), and databases.

Responsibilities

• Provide onsite technical support for hardware, system, and application issues.
• Perform daily system health checks and execute preventive maintenance activities.
• Monitor system performance and manage user account information.

Skills

Linux (RHEL)

Windows Server (2019)

Incident Management

Backup Systems

DevOps Tools

Security Technologies

Education

Diploma or Degree in Computer Science or Information Systems

Tools

Dell EMC Data Domain

OpenShift

Ansible

GitLab

Job description

Key Responsibilities

1. Incident Management & Troubleshooting

• Provide onsite technical support for all hardware, system, and application issues under maintenance scope.
• Assist in incident verification, isolation, and resolution or provision of approved workarounds.
• Troubleshoot and resolve Level 1 and Level 2 technical issues.
• Escalate complex or unresolved incidents to Maintenance Team Leader and inform Maintenance Manager accordingly.
• Respond promptly to service disruptions, system alarms, or performance anomalies.

2. Preventive & Corrective Maintenance

• Perform daily system health checks and review logs to identify early signs of issues.
• Execute preventive maintenance activities and carry out corrective actions when required.
• Perform and verify scheduled backups: daily incremental, hot backups, and weekly full backups.
• Execute system recovery procedures during service restoration.

3. System Administration

• Add, remove, or update user account information in coordination with system owners.
• Reset passwords and manage access controls securely.
• Monitor system performance and tune systems or databases based on advisory or logs.

4. Patch Management & Upgrades

• Test and deploy OS patches, firmware upgrades, and software updates.
• Perform staging and implementation of hardware upgrades and COTS software patches.
• Ensure all changes adhere to change control and system hardening policies.

5. Hardware & Infrastructure Maintenance

• Support, troubleshoot, and maintain hardware devices including:
  • Servers (e.g., Dell PowerEdge R750)
  • Firewalls (e.g., FortiGate 1101E)
  • Storage Devices (e.g., Dell EMC XT380/XT480)
  • Switches (e.g., Cisco C9300)
  • UPS & Power Management (e.g., APC Smart UPS, Rack PDU)
  • KVM consoles, HSMs, NTP servers, and mobile computing devices.

6. Software Platform Support

• Manage and monitor platforms and applications such as:
  • ArcGIS Server, IBM ACE + MQ, Kafka, MongoDB, MS SQL, WebSphere, Elastic Stack, Rocket.Chat
  • Security & Endpoint Tools: Symantec, Carbon Black EDR, CipherTrust, Fortify WebInspect, Keycloak.
  • Monitoring & DevOps Tools: Grafana, Prometheus, GitLab Enterprise, Ansible, OpenShift, Red Hat Satellite.

7. Documentation & Reporting

• Maintain and update all relevant documentation, including SOPs, maintenance records, system diagrams, and logs.
• Generate reports on system performance, incident handling, and preventive maintenance activities.

8. Advisory & Continuous Improvement

• Provide technical advice on infrastructure improvement, system performance tuning, and reliability enhancements.
• Propose and implement automation where applicable to streamline system monitoring and recovery processes.

Requirements

Essential Qualifications & Experience

• Diploma or Degree in Computer Science, Information Systems, or equivalent.
• Minimum 3 years of experience in IT system administration or infrastructure maintenance roles.
• Strong knowledge of Linux (RHEL) and Windows Server (2019) environments.
• Experience with backup systems (e.g., Dell EMC Data Domain, Avamar), firewalls, and enterprise‑grade hardware.
• Familiar with container platforms (e.g., OpenShift), middleware (IBM ACE, WebSphere), databases (SQL, MongoDB), and cloud or hybrid integration platforms.
• Working knowledge of DevOps tools (Ansible, GitLab, SonarQube).
• Familiarity with security technologies (Keycloak, CipherTrust, FortiGate, WebInspect).
• Knowledge of ITIL processes for incident, change, and problem management.