Senior Systems Engineer - Automation & Security

PT ITSEC Asia Tbk; Jakarta Pusat; On-site; IDR 100,000,000 - 180,000,000; Full time

Job summary

PT ITSEC Asia Tbk is seeking an experienced Infrastructure Engineer to own and maintain operating system environments (Linux/Windows) across production platforms in Jakarta. You will develop automation scripts, implement configuration management, and lead root-cause analysis for complex failures to sustain high availability.

The role requires 7+ years of production-grade experience, strong scripting (Python, Bash, PowerShell), and a solid background in virtualization (Proxmox) and containers

Qualifications

• 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.
• Deep knowledge of OS internals, including memory allocation, storage/filesystems, process management, and networking stacks (Linux/Unix or Windows Server).
• Strong scripting skills in Python, Bash, or PowerShell, alongside experience with configuration management tools (Ansible, SaltStack, Puppet).
• Experience with virtualization platforms (Proxmox) and container orchestration tools (Kubernetes or Docker).
• Experience configuring and maintaining monitoring and logging solutions (Prometheus, Grafana, Loki, or APM tools).
• Practical knowledge of network protocols, access control, system hardening, and patch management.

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.

Skills

OS internals

Automation scripting

Analytical thinking

Communication

Independence

Education

Bachelor’s degree in Computer Science / IT / Software Engineering or related field

Tools

Ansible

SaltStack

Puppet

Proxmox

Kubernetes

Docker

Prometheus

Grafana

Job description

PT ITSEC Asia Tbk is seeking an experienced Infrastructure Engineer to own and maintain operating system environments (Linux/Windows) across production platforms in Jakarta. You will develop automation scripts, implement configuration management, and lead root-cause analysis for complex failures to sustain high availability.

The role requires 7+ years of production-grade experience, strong scripting (Python, Bash, PowerShell), and a solid background in virtualization (Proxmox) and containers