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PT ITSEC Asia Tbk Linkedin · Posted 4d ago

System Administrator

Jakarta

Linkedin
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Indexed description

Responsibilities

  • Own, configure, and maintain operating system environments (Linux/Ubuntu/CentOS or Windows Server) to ensure platform stability, performance, and security.
  • Develop and maintain automation scripts and configuration management workflows for system provisioning, configuration, and deployments.
  • Perform deep-level technical troubleshooting to identify and permanently resolve root causes of complex system and infrastructure failures.
  • Establish and enforce system hardening standards, access controls, and automated patching procedures.
  • Evaluate, test, and integrate modern infrastructure technologies and tools to improve system performance and reliability.
  • Optimize system monitoring, logging, and metrics collection to ensure system health and proactive incident management.
  • Collaborate with engineering, product, and platform teams to support infrastructure requirements without compromising system stability.
  • Maintain clear technical documentation for infrastructure configurations, procedures, and troubleshooting workflows.

Requirements

  • Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related technical field (or equivalent practical experience).
  • Minimum 7 years of experience managing production-grade systems and infrastructure environments.
  • Operating Systems: Deep knowledge of OS internals, including memory allocation, storage/filesystems, process management, and networking stacks (Linux/Unix or Windows Server).
  • Automation & Scripting: Strong scripting skills in Python, Bash, or PowerShell, alongside experience with configuration management tools (such as Ansible, SaltStack, or Puppet).
  • Virtualization & Containers: Experience with virtualization platforms (e.g., Proxmox) and container orchestration tools (such as Kubernetes or Docker).
  • System Monitoring: Experience configuring and maintaining monitoring and logging solutions (e.g., Prometheus, Grafana, Loki, or APM tools).
  • Security & Networking: Practical knowledge of network protocols, access control management, system hardening guidelines, and patch management.
  • Strong analytical skills and a methodical approach to diagnosing and resolving complex technical issues.
  • Ability to independently manage core infrastructure systems and make sound operational decisions.
  • Willingness to objectively evaluate and adopt modern infrastructure technologies based on operational needs.
  • Clear written and verbal communication skills to document system architectures and collaborate effectively across teams.
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