Aris K

IT Infrastructure and Network Engineer with 10+ years of experience in enterprise and backbone environments. Experienced in leading small technical teams, managing multi-vendor network infrastructure (Cisco, Juniper, Huawei, MikroTik), and ensuring high availability of IT systems aligned with business objectives. Strong background in routing, MPLS, server administration (Dell hardware, Linux/Windows Server), virtualization (VMware, Proxmox, VirtualBox), backup & disaster recovery (Veeam, Acronis, Proxmox Backup), cybersecurity fundamentals, monitoring, and automation.

Proven ability to coordinate cross-functional teams and improve operational efficiency through scripting and workflow automation.

IP/MPLS Network Engineer (L2) at PT Infomedia Nusantara (2021-02 – Present)

• Worked as an Onsite Engineer at PT Telekomunikasi Indonesia, providing operational and technical support for enterprise and backbone network infrastructure.
• Managed Dell server hardware including installation, maintenance, diagnostics, and PSU/component troubleshooting.
• Diagnosed, analyzed, and resolved complex incidents on IP/MPLS backbone networks (CE, PE, P routers, Metro-E) and access networks (GPON, switches) through ticketing systems in accordance with SLA.
• Managed and supported MPLS L2VPN services (E-Line, E-LAN, VPLS) and assisted MPLS L3VPN/MP-BGP environments for enterprise customers.
• Performed in-depth troubleshooting of routing and signaling issues involving BGP, OSPF, RIP, and EIGRP, including cross-ISP IP Transit connectivity problems.
• Identified and resolved performance degradation, latency, packet loss, jitter, and stability issues across MPLS L2VPN and L3VPN services.
• Executed device configuration, provisioning, and operational support in multi-vendor environments including Cisco, Juniper, Huawei, Nokia/Alcatel, ZTE, FiberHome, and MikroTik.
• Configured and managed MikroTik RouterOS for edge routing, firewall, NAT, VPN (IPsec, L2TP, OpenVPN, WireGuard), VLAN, QoS, and hotspot deployments.
• Monitored network availability, utilization, and traffic patterns using Grafana, Prometheus, Zabbix, SolarWinds, PRTG, MRTG, Cacti, NetFlow, and Splunk.
• Administered infrastructure on Windows Server and Linux (RHEL 9 & 10), including OS installation, upgrades, security patching, hardening, and post-maintenance health checks.
• Deployed and managed virtualization environments using VMware vSphere/ESXi, Proxmox VE, and VirtualBox for both production and lab environments, including VM deployment, resource allocation, snapshots, and performance tuning.
• Implemented and managed backup and disaster recovery solutions using Veeam Backup & Replication, Acronis, Proxmox Backup Server, VMware Snapshots, and Windows Server Backup to ensure business continuity.
• Performed automated and manual router/switch configuration backup using Python automation scripts and manual procedures to ensure configuration integrity and rapid recovery.
• Managed DNS services, Active Directory integration, and Microsoft 365 environment (OneDrive, SharePoint, Entra ID) to support user authentication and collaboration.
• Led and supervised a team of 2 junior engineers, overseeing task distribution, escalation handling, and SLA compliance; acted as technical escalation point for complex cases.
• Introduced containerization using Docker and automation workflows with n8n to improve deployment flexibility and incident-response efficiency.

IP/MPLS Network Analyst (L1) at PT Mediatron (2011-04 – 2021-01)

• Worked at client premises for PT Telekomunikasi Indonesia (Telkom) as part of network operations support (NOC).
• Performed first-level diagnostics and remote troubleshooting via ticketing systems for MPLS networks (CE, PE, P routers, Metro-E), public internet nodes, and access networks (DSLAM, E1 links, IMUX TDM, switches).
• Monitored, analyzed, and reported network performance degradation across MPLS L3VPN, MPLS L2VPN, Frame Relay, Leased Line, and Local Loop services.
• Monitored and analyzed IMUX TDM alarms using Tellabs and Mainstreet Newbridge NMS.
• Conducted BER (Bit Error Rate) testing on E1 links to identify and troubleshoot network quality issues.
• Monitored ADSL/DSL modem alarms (SNR, attenuation) using Zyxel NMS and performed DSLAM line profile adjustments to restore service quality.
• Provided technical guidance to junior staff, assisting with troubleshooting and escalation procedures.
• Escalated complex network issues to Level 2 Network Engineers and coordinated with field teams to resolve physical disruptions and ensure SLA compliance.
• Conducted preventive maintenance, server hardware troubleshooting (PSU replacement and diagnostics), structured cabling (Cat 5e & Cat 6a), and on-site infrastructure support.
• Worked in multi-vendor environments including Cisco, Juniper, Huawei, Alcatel, ZTE, Zyxel, Tellabs, Fiberhome, and MikroTik.

Senior Software Programmer at PT Liberty Jaya (2009-03 – 2010-10)

IT Consultant

• Developed and maintained enterprise business applications using VB.NET, PHP.NET, and JSP, with JavaScript and JSON for dynamic and interactive web functionality.
• Designed, optimized, and managed SQL-based databases, improving application performance, data integrity, and system reliability.
• Collaborated with business analysts, project managers, and cross-functional teams to deliver software modules on time and within scope.
• Performed unit testing, debugging, and troubleshooting to ensure stable, high-quality software releases.
• Gathered and analyzed user requirements, translating them into clear technical specifications and functional definition documents.

Universitas Esa Unggul (2004-2008) - S1 Teknik Informatika - IPK 3.21