Job description for System Administrator / DevOps at Pt Linkit360
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.
• 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
