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Open nowPosted yesterday

System Administrator

TEAMLEASE DIGITAL SOLUTIONS PTE. LTD.

Pay
SGD 6,000 – SGD 7,000 a month
Where
West, Singapore
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Your applicationOpen nowSystem AdministratorTEAMLEASE DIGITAL SOLUTIONS PTE. LTD. · West, Singapore

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The clock on this job

Early applications get read.

13.7% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.3%1 day
  2. 4.8%3 days
  3. 13.7%7 days
  4. 22.1%14 days
  5. 37.2%30 days
  6. 59.1%60 days
This job: posted yesterday

The posting

Key Responsibilities:

  • Perform service recovery for Unix/Linux systems to minimise downtime and ensure business continuity.
  • Troubleshoot OS, CPU, memory, filesystem, network, and performance-related issues.
  • Manage production incidents and participate in incident recovery and root cause analysis.
  • Conduct Disaster Recovery (DR) testing in coordination with business and infrastructure teams.
  • Monitor server health, capacity, availability, and performance.
  • Involved in Root Cause Analysis (RCA) investigations for critical incidents.
  • Administer and maintain servers (Red Hat, AIX, Solaris) in production and DR environments.
  • Coordinate with application, database, network, storage, and other infrastructure teams.
  • Maintain operational procedures, technical documentation, and knowledge articles.
  • Provide 24x7 on-call support during assigned shifts and respond to severity 1 incidents under pressure.
  • Communicate effectively with stakeholders during high-impact incidents and recovery efforts.
  • Worked with L1 to monitor system performance and proactively address potential issues.

Responsibilities:

We are seeking a skilled and proactive Unix/Linux Administrator with 6–8 years of hands-on experience in managing enterprise Unix/Linux environments. The ideal candidate will have strong expertise in Red Hat, AIX, and Solaris systems, along with a solid understanding of VMware ESX/Network/Storage technologies. This role is focused on ensuring system resilience through effective service recovery, disaster recovery (DR) testing, and root cause analysis (RCA) of incidents.

  • Perform service recovery for Unix/Linux systems to minimise downtime and support business continuity.
  • Troubleshoot OS, CPU, memory, filesystem, network, and performance-related issues.
  • Manage production incidents and participate in incident recovery and root cause analysis.
  • Conduct Disaster Recovery (DR) testing in coordination with business and infrastructure teams.
  • Monitor server health, capacity, availability, and performance.
  • Involved in Root Cause Analysis (RCA) investigations for critical incidents.
  • Administer and maintain servers (Red Hat, AIX, Solaris) in production and DR environments.
  • Coordinate with application, database, network, storage, and other infrastructure teams.
  • Maintain operational procedures, technical documentation, and knowledge articles.
  • Provide 24x7 on-call support during assigned shifts and respond to severity 1 incidents under pressure.
  • Communicate effectively with stakeholders during high-impact incidents and recovery efforts.
  • Work with L1 to monitor system performance and proactively address potential issues.

Required Skills

  • Degree/Diploma in Information Technology/Computer Science or equivalent
  • At least years of experience in Unix/Linux system administration and production support.
  • Strong Unix/Linux administration and troubleshooting skills.
  • Knowledge of filesystem/LVM, processes, services, networking, user administration, and shell scripting.
  • Experience with Incident, Problem, and Change Management processes.
  • Good analytical, troubleshooting, communication, and coordination skills.

Good to Have:

  • Good knowledge of ITIL processes, incident management and RCA methodologies.
  • VMware/virtualization knowledge.
  • Storage technologies such as SAN, LUN, and multipathing.
  • Experience working in a bank is a plus

Key Domain/ Technical Skills:

  • Red Hat Linux, AIX, Solaris operating systems.
  • VMware ESX, Network, Storage.
  • Geneos, Splunk, and scripting are a plus.

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