Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Aravinda Kumar N

Singapore

Summary

Skilled IT System Engineer with 4+ years of experience providing first-line technical support in enterprise environments. Proficient in troubleshooting Linux and Wintel Familiar with PRTG, NetSpot, Docker, Prometheus, VMware, Hyper-V, Active Directory, and Veeam backup testing. Skilled in troubleshooting hardware, software, and network issues. Proficient in working with Cisco, Allied Telesis, and Dell switches and routers. Skilled in diagnosing network issues, managing wireless access points, and implementing robust solutions to ensure optimal performance and uptime. Proven expertise in deploying and maintaining both hardware and software systems, conducting wireless site surveys with heatmaps operations in data centers and air-gapped environments. utilizing monitoring tools like PRTG for proactive network health management. Adept at collaborating with cross-functional teams, ensuring network security in incident management and cross-team collaboration in 24x7 support operations.

Overview

8
8
years of professional experience
1
1
Certification

Work History

System Engineer

3Si PTE LTD
11.2024 - Current
  • Administer and maintain Red Hat Enterprise Linux (RHEL) and Wintel (Windows Server) environments, ensuring system stability and performance
  • PRTG Network Monitoring, SNMP-based performance tracking, alert configuration, sensor management
  • Conduct vulnerability scans, document risk findings, and coordinate remediation efforts.
  • Supported data center migration projects with detailed Visio-based network planning and mapping.
  • Provided support for enterprise LAN/WAN infrastructures, handling day-to-day network issues and escalations.
  • configured and maintained Cisco, Dell, and Allied Telesis switches and routers across multiple branches.
  • Diagnosed and resolved network performance issues, VLAN misconfigurations, and access point (AP) outages.
  • Managed installation of network hardware and software, including firmware upgrades and security patches.

Cybersecurity and Ethical Hacking Intern

EDUREKA
04.2024 - 08.2024
  • Conducted vulnerability assessments and penetration testing.
  • Worked on cyber threat intelligence and malware analysis.
  • Performed network administration and researched security flaws.

System Engineer

Mubest Pte Ltd
01.2022 - 07.2024
  • Provided first-level support for enterprise systems, focusing heavily on Linux-based environments, including Red Hat and Ubuntu distributions.
  • Worked on Allied Telesis managed switches for surveillance.
  • Performed L2 troubleshooting of WAN, switch port issues, DHCP conflicts, and link failures.
  • Managed the deployment and health checks of wireless access points (Aruba, Cisco) in office environments.
  • Monitored virtual machine availability using both VMware and Hyper-V, escalating based on host alerts and storage.
  • Supported implementation of new technologies and provided training.
  • Implemented WAN and LAN designs in multi-datacenter setups.
  • Supported Windows Server environment and Office 365 user accounts.

Debug Technician

Avalon Technologies Pvt Ltd
01.2021 - 01.2022
  • Implemented port securit and link aggregation for improved switch performance.
  • Used PRTG for real-time monitoring and traffic analysis of critical nodes.
  • Created heatmaps for wireless designs using NetSpot.
  • Escalated unresolved or complex OS and middleware incidents to L2/L3 teams with detailed analysis and logs.
  • Assisted in rollout of new systems and IT assets across branches.
  • Worked closely with senior engineers during system upgrades and patch deployments.
  • Maintained inventory of IT equipment and coordinated with vendors for replacements.

Service Repair Operator

Nokia Solutions and Networks
01.2018 - 01.2019
  • Contributed to system documentation and internal runbook, focusing on Linux command usage and basic container management workflows.
  • Diagnosed end-user connectivity issues, printer network problems, and basic AP signal troubleshooting.
  • Assisted in the deployment of network infrastructure during new office setups, including rack, patch panel, and cable management.
  • Maintained asset inventory for switches, routers, and wireless controllers.
  • Installed, configured, and maintained hardware/software across office departments
  • Troubleshot network issues (LAN/Wi-Fi) and coordinated with the network team for escalations


Education

DEEE - Electrical And Electronics Engineering

Tamilnadu Polytechnic College
01.2018

SSLC -

Ramsuns Matric Hr Sec School
01.2015

Skills

  • Cisco, Allied Telesis, Dell Switches & Routers
  • LAN/WAN Troubleshooting, VLANs, Trunking, Port Security
  • Microsoft Visio – Network Diagrams and Topology Mapping
  • IP Addressing, DNS, DHCP
  • Tools: Ping, Traceroute, Port Checks
  • Network Monitoring Tools: PRTG & Prometheus
  • Endpoint Security, Incident Response Support
  • Patch Management & OS Hardening (Windows Server, RHEL)
  • Heatmap Design & Wireless Site Surveys NetSpot
  • Network Monitoring Tools: PRTG & Prometheus
  • System Logs Analysis, Resource Monitoring
  • Network Monitoring Tools: PRTG & Prometheus

Certification

  • Cisco Certified Network Associate (CCNA)
  • Microsoft IT Support Specialist
  • Technical Diagnostics and Troubleshooting (Microsoft)
  • Cybersecurity and Ethical Hacking Internship (Edureka)
  • Tata Group – Cybersecurity Analyst
  • Fortinet Certified Associate Cybersecurity

Timeline

System Engineer

3Si PTE LTD
11.2024 - Current

Cybersecurity and Ethical Hacking Intern

EDUREKA
04.2024 - 08.2024

System Engineer

Mubest Pte Ltd
01.2022 - 07.2024

Debug Technician

Avalon Technologies Pvt Ltd
01.2021 - 01.2022

Service Repair Operator

Nokia Solutions and Networks
01.2018 - 01.2019

SSLC -

Ramsuns Matric Hr Sec School

DEEE - Electrical And Electronics Engineering

Tamilnadu Polytechnic College

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