System Engineer (API Infrastructure & Monitoring)
Salary: Rp 15.000.000 – Rp 20.000.000 per month
Describe Duties & Responsibilities (In Outline)
About the Role
As a System Engineer, you will be responsible for the stability of the infrastructure behind our MTS/HTS backend (API) services,
operated in an on-premise environment. Your core mission is to ensure our trading services stay healthy 24×365: watching API performance through monitoring and APM tools,
catching issues before customers notice them, responding quickly when incidents occur, and continuously improving our monitoring and operational automation.
This role is critical in a securities business where even short downtime or slow response during market hours has a direct impact on customers.
Responsibilities
Operate and manage the infrastructure for MTS/HTS backend (API) services in an on-premise environment
Operate API servers, web/WAS, and middleware, and manage their performance
Operate, manage, and enhance the integrated monitoring system
- Collect server/network/application (API) metrics and manage dashboards
- Define and operate threshold-based alerting policies
- Monitor API response time, throughput (TPS), and error rates via APMOperate log collection/analysis systems and perform root-cause analysis of incidents
Handle incidents, establish preventive measures, and write incident reports
Perform capacity planning and expansion planning; support performance testing
Manage L4/L7 load balancer configurations and analyze traffic
Apply OS/middleware patches; conduct security vulnerability checks and remediation
Perform routine inspections, deployment support, and improve operational automation
Support DR (disaster recovery) drills and backup/recovery operations
Requirements
5+ years of experience in system engineering
Hands-on Linux server operations (kernel parameter tuning, resource analysis, etc.)
Experience operating web/WAS (Nginx, Apache, etc.) and API servers
Experience configuring and operating monitoring tools (Grafana, Prometheus, Zabbix, etc.)
Experience with APM tools (Pinpoint, Scouter, Whatap, Jennifer, Datadog APM, etc.)
Ability to automate operations using scripts (Shell, Python, etc.)
Strong incident response and root-cause analysis skills (logs, resources, network path analysis)
Preferred Qualifications
Experience operating on-premise infrastructure in the financial industry (securities, banking, etc.)
Experience operating 24×365 customer-facing services such as MTS/HTS
Experience operating infrastructure for Python-based (e.g., FastAPI) services
Experience with log collection/analysis platforms (ELK, Loki, etc.)
Understanding of network equipment such as L4/L7 switches and firewalls
Experience operating middleware such as Redis and Kafka
Experience operating under high-volume transaction loads (e.g., market-open peak traffic)
Understanding of financial IT security requirements and OJK regulations on information technology for financial institutions
Relevant certifications (RHCSA/RHCE, LPIC, CCNA, etc.) are a plus
Specialized Knowledge & Skills
Linux/network-level troubleshooting, monitoring & APM-based performance analysis (metrics, alerting, TPS/response time), and incident root-cause analysis for 24×365 on-premise financial API services