Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Aravinda Kumar N

Singapore

Summary

Skilled UNIX/Linux IT System Engineer with 4+ years of experience providing first-line technical support in enterprise environments. Proficient in troubleshooting Linux (RHEL, CentOS, Ubuntu) and UNIX (AIX, Solaris) systems, performing log analysis, health checks, and scripting for automation. Familiar with Docker, Apache HTTP Server, Prometheus, VMware, Hyper-V, Active Directory, and Veeam backup testing. Skilled in troubleshooting hardware, software, and network issues, as well as managing support tickets and coordinating with cross-functional IT teams. Strong in incident management and cross-team collaboration in 24x7 support operations.

Overview

7
7
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
  • Perform system patching, kernel updates (RHEL), and Windows Server hardening in line with security and compliance standards.
  • Conduct vulnerability scans, document risk findings, and coordinate remediation efforts.
  • Assisted with routine Linux OS administration tasks such as user management, file system monitoring, and basic permission troubleshooting.
  • Perform patching and system hardening.
  • Participated in Veeam Backup & Replication testing activities in a sandbox environment, verifying backup integrity and documenting results.

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 with Docker to understand container behavior and perform basic container operations such as starting/stopping containers during incident triage.
  • 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.
  • Investigated application availability issues by reviewing Apache HTTP Server logs and collaborating with application teams on resolution.
  • Supported Windows Server environment and Office 365 user accounts.

Debug Technician

Avalon Technologies Pvt Ltd
01.2021 - 01.2022
  • Gained hands-on exposure to Docker containers as part of environment setup verification and performed basic tasks such as inspecting logs and container statuses.
  • Assisted in maintaining Prometheus metrics dashboards by reporting anomalies and working with monitoring teams to update alerting rules.
  • 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.
  • Supported mobile device configuration and basic MDM management.
  • 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 runbooks, focusing on Linux command usage and basic container management workflows.
  • Troubleshoot VMware and Hyper-V environments.
  • Supported Active Directory tasks such as password resets, group memberships, and account lockouts.
  • Maintained detailed runbooks for incident handling procedures covering Linux, VM operations, and backups.
  • Provided onsite support for 100+ users including desktops, laptops, and printers.
  • Installed, configured, and maintained hardware/software across office departments
  • Troubleshot network issues (LAN/Wi-Fi) and coordinated with the network team for escalations
  • Managed daily service desk tickets using ITSM tools; ensured timely resolution and documentation.

Education

DEEE - undefined

Tamilnadu Polytechnic College
Madurai
01.2018

SSLC - undefined

Ramsuns Matric Hr Sec School
Natham
01.2015

Skills

  • Linux (RHEL, CentOS, Ubuntu), UNIX(Solaris ),Windows Server
  • VMware vSphere, Microsoft Hyper-V, Veeam Backup & Replication (sandbox testing)
  • Apache HTTP Server, Basic Middleware Support
  • Docker (operations and troubleshooting)
  • Prometheus, System Logs Analysis, Resource Monitoring
  • OS Hardening (Windows Server & RHEL)
  • VMware ESXi, Hyper-V
  • Active Directory, DNS,DHCP
  • LAN/WAN Troubleshooting
  • Network Infrastructure
  • Cisco Switches & Routers
  • Patch Management

Certification

  • 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

DEEE - undefined

Tamilnadu Polytechnic College

SSLC - undefined

Ramsuns Matric Hr Sec School

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