System Administrator DevOps

• Manage and maintain Linux-based production servers supporting telco/VAS platforms

• Ensure system availability, stability, and performance in line with SLA (≥99.9%)

• Handle high transaction volumes and traffic spikes in production environments

• Monitor system performance, logs, and infrastructure health

• Perform troubleshooting, incident response, and root cause analysis

• Manage and optimize Docker-based services

• Operate container orchestration platforms such as Kubernetes or Docker Swarm

• Collaborate with developers on system deployment and CI/CD processes

• Implement system security measures and anomaly monitoring

• Prepare technical documentation and incident reports

• Participate in on-call support for critical system incidents

• Administered and maintained the Elasticsearch Stack (ELK) including Elasticsearch, Kibana, Logstash, Fluent-bit, Filebeat, Metricbeat, Heartbeat, Elastic APM, and Kibana Machine Learning (Mandatory).

• Performed Elasticsearch cluster maintenance, including index lifecycle management (ILM), replica tuning, shard relocation, and storage optimization.

Kualifikasi

Job Responsibilities

• Manage and maintain Linux-based production servers supporting telco/VAS platforms

• Ensure system availability, stability, and performance in line with SLA (≥99.9%)

• Handle high transaction volumes and traffic spikes in production environments

• Monitor system performance, logs, and infrastructure health

• Perform troubleshooting, incident response, and root cause analysis

• Manage and optimize Docker-based services

• Operate container orchestration platforms such as Kubernetes or Docker Swarm

• Collaborate with developers on system deployment and CI/CD processes

• Implement system security measures and anomaly monitoring

• Prepare technical documentation and incident reports

• Participate in on-call support for critical system incidents

• Administered and maintained the Elasticsearch Stack (ELK) including Elasticsearch, Kibana, Logstash, Fluent-bit, Filebeat, Metricbeat, Heartbeat, Elastic APM, and Kibana Machine Learning (Mandatory).

• Performed Elasticsearch cluster maintenance, including index lifecycle management (ILM), replica tuning, shard relocation, and storage optimization.

Job Requirements

• Bachelor’s degree in Information Technology, Computer Science, or related field

• Minimum 5–8 years of experience as a System Administrator

• Strong experience managing Linux production servers (Ubuntu / CentOS / Debian)

• Experience working with high-traffic or production-critical systems

• Hands-on experience with Docker containerization (mandatory)

• Experience with Kubernetes or Docker Swarm

• Good understanding of networking concepts, system architecture, and API integration

• Experience using monitoring and logging tools such as Grafana, Prometheus, Elasticsearch Stack (ELK) including Elasticsearch, Kibana, Logstash, Fluent-bit, Filebeat, Metricbeat, Heartbeat, Elastic APM, and Kibana Machine Learning (a must).

• Experience handling incident management and performance optimization and elasticsearch cluster maintenance, including index lifecycle management (ILM), replica tuning, shard relocation, and storage optimization.

• Willing to participate in 24/7 on-call rotation for critical incidents

Preferred Background

Candidates with experience in the following industries are highly preferred:

• Telecommunication companies

• VAS (Value Added Services)

• Content Provider / SMS Gateway companies

• High traffic digital platforms

Experience supporting platforms such as:

• SMS Gateway / Messaging Platforms

• OTP or Authentication Systems

• Telco API services