Ariel Johannes

System Engineer with experience in infrastructure monitoring, network services, incident management, and technical support. Skilled in Linux, DNS, DHCP, IPAM, SQL, and system troubleshooting. Passionate about DevOps, Site Reliability Engineering (SRE), and Cloud Computing, with a strong interest in automation, CI/CD, containerization, and cloud technologies. Continuously learning and improving to build reliable, scalable, and efficient systems.

PT. TERA MULTI WAHANA

Application Developer

Aug 2023 – Dec 2025

• Developed and maintained Distribution Management System (DMS) and Sales Force Automation (SFA) applications using C#,.NET, Flutter, and SQL Server.
• Implemented integration between mobile (SFA) and web/desktop (DMS) platforms, enabling real-time synchronization of sales and operational data.
• Troubleshot application and database issues, including SQL query debugging, data validation, and data consistency improvements.
• Performed system deployment, installation, configuration, and maintenance across multiple client environments.
• Supported migration initiatives from desktop-based systems to web-based applications, improving accessibility and maintainability.
• Conducted manual testing and prepared test cases to ensure system functionality met business and operational requirements.
• Delivered user training sessions and provided technical support to end users and clients.

PT. Datacomm Diangraha

System Engineer

Dec 2025 – Present

• Monitor and maintain DDI (DNS, DHCP, and IPAM) infrastructure using EfficientIP to ensure high availability, stability, and performance.
• Perform proactive monitoring and preventive maintenance activities to identify and mitigate potential infrastructure issues.
• Investigate and resolve network and system incidents through connectivity validation, log analysis, and diagnostic troubleshooting.
• Support L2 engineers by executing diagnostic commands, validating configurations, and assisting in incident resolution activities.
• Develop and validate Method of Procedure (MOP) documents through lab testing before production implementation to minimize operational risks.
• Conduct incident analysis, generate monitoring reports, and support ticket management processes in accordance with operational procedures and SLA requirements.
• Provide first-line technical support to clients, ensuring reliable service operations and timely issue resolution.

Associate of Computer Engineering in Computer Engineering – INSTITUT TEKNOLOGI DEL (2022-08 – 2025-09)