Arjun

Welcome to my portfolio

Arjun K S

System Administrator | Network & Cybersecurity (SOC) | Aspiring Developer

About Me

Crafting Digital Excellence

Hands-on experience in server management, network support, SOC alert triage, and foundational scripting with Python and JavaScript.

Arjun K S

IT professional focused on system administration, enterprise networking, and Security Operations Center (SOC) workflows. I manage Windows and Linux servers, troubleshoot network issues, analyze security alerts, and document incidents. I'm also learning JavaScript and Python at a beginner level to automate routine tasks and build practical tools for IT operations.

Home : Kollam, Kerala | Working : Male, Maldives

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Years Experience

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Projects Done

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Technologies

Skills

Technical Expertise

Core competencies across infrastructure, security operations, and foundational development.

Windows Server

92%

AD, GPO, patching, user management, OU

Linux Administration

75%

Ubuntu/CentOS, services, shell basics, Kali Linux

Active Directory

85%

Users, groups, OU structure

VMware / Hyper-V

80%

VMWare Esxi 8.0.3 | VMWare Vcenter 8 | Windows Hyper-V 2022

Backup & Recovery

95%

Restore drills and retention policies

TCP/IP

95%

Subnetting, routing, troubleshooting

DNS & DHCP

90%

Resolution issues and scope management

Firewalls

85%

ACL rules, NAT, basic policy review, SD WAN

VPN

90%

Remote access and site-to-site basics

Wireshark

80%

Packet capture and traffic analysis

SIEM (Splunk / Sentinel One Datalake)

80%

Log ingestion and alert correlation

Incident Triage

90%

SOC L1 alert review and escalation

Threat Detection

90%

Malware, phishing, and IOC review

Vulnerability Management

85%

Scan results and remediation tracking

Security Fundamentals

90%

CIA triad, MITRE ATT&CK awareness

Python Automation / Web Backend Developer

65%

Scripts for logs, files, and automation , Web Server Backend using FastAPI

JavaScript Front End Developer

70%

Static Websites and Entry Level Web apps

Git & GitHub

75%

Version control for labs and projects

PowerShell

80%

Admin automation and task scheduling

SOC Alert Triage Dashboard

Featured Project

SOC Alert Triage Dashboard

A lab project documenting SOC L1 workflows — alert classification, severity mapping, and escalation playbooks using SIEM-style log samples.

Sentinel One XDRVirus TotalPythonReact JsDockerNgnix

Projects

Featured Work

Labs and practical work across security operations, infrastructure, and scripting.

SOC Alert Triage DashboardFeatured

SOC Alert Triage Dashboard

A lab project documenting SOC L1 workflows — alert classification, severity mapping, and escalation playbooks using SIEM-style log samples.

Sentinel One XDRVirus TotalPythonReact Js
Enterprise Virtualization & Storage Modernization – Huawei OceanStor SAN and Backup Infrastructure Deployment

Enterprise Virtualization & Storage Modernization – Huawei OceanStor SAN and Backup Infrastructure Deployment

Designed and executed a large-scale infrastructure modernization project involving the migration of standalone VMware ESXi hosts to a centralized VMware vCenter environment backed by Huawei OceanStor all-flash storage. Implemented high-speed SAN networking, centralized storage management, and enterprise backup infrastructure with Huawei OceanStor NFS storage and Vinchin Backup, enabling zero-downtime migrations, improved performance, and enhanced disaster recovery capabilities.

VMware vSphere | VMware vMotion | VMware ESXi | VMware vCenter ServerHuawei OceanStor 2020 SSD Storage | Huawei OceanStor 5120 NFS StorageVinchin Backup & RecoveryiSCSI Storage | SAN Networking
Enterprise Firewall & SD-WAN Transformation Project – FortiGate to Check Point MigrationFeatured

Enterprise Firewall & SD-WAN Transformation Project – FortiGate to Check Point Migration

Successfully led the migration of the enterprise network security infrastructure from FortiGate firewalls to Check Point Next-Generation Firewalls and Cloud SD-WAN across multiple resort properties. The project improved network resiliency, security posture, application performance, and centralized management while supporting hybrid WAN connectivity, secure remote access, and business-critical hospitality operations.

Check Point Quantum Security GatewayCheck Point Cloud SD-WANCheck Point Endpoint ManagementMPLS | Static WAN Links

Experience

Professional Journey

Building impactful solutions across diverse industries and teams.

Sun Siyam Resorts Pvt Ltd

IT Support Manager

Current

Male, Maldives

January 31, 2024 — Present

Marriott International (Sheraton Grand Doha)

Information Technology Supervisor

Doha, Qatar

January 3, 2022 — January 20, 2024

Sun Siyam Resorts Pvt. Ltd.

System & Business Analyst

Male , Maldives

September 30, 2019 — March 1, 2022

Sun Siyam Olhuveli Maldives

Information Technology Administrator

South Male Atoll, Maldives

October 17, 2016 — October 18, 2019

CYBERIA SOFTWARES PRIVATE LIMITED

System Engineer

Kollam, Kerala, India

July 1, 2015 — May 31, 2016

Certifications

Credentials & Achievements

Industry-recognized certifications validating technical expertise.

Certified Ethical Hacker

Certified Ethical Hacker

EC-Council

September 24, 2026

ID: ECC9621307845

3CX Advanced Certified Engineer V20

3CX Advanced Certified Engineer V20

3CX Academy

September 30, 2025

ID: Lba7M0Oi17

3CX Basic Certified Engineer V20

3CX Basic Certified Engineer V20

3CX Academy

January 20, 2025

ID: M2DACjZfjS

Cybersecurity Awareness Learner 2025

Cybersecurity Awareness Learner 2025

Certiprof

January 17, 2025

Verify
Fortinet Certified Fundamentals Cybersecurity

Fortinet Certified Fundamentals Cybersecurity

Fortinet

July 27, 2023

ID: 6795a57a-7ac9-44a3-b582-05231e285b61

Verify
Fortinet Network Security Expert Level 2: Certified Associate

Fortinet Network Security Expert Level 2: Certified Associate

Fortinet

July 27, 2023

ID: 3uOTrY4zJH

Verify
Fortinet Network Security Expert Level 1: Certified Associate

Fortinet Network Security Expert Level 1: Certified Associate

Fortinet

July 4, 2023

ID: xqjME93h1k

Verify
Introduction to Cybersecurity

Introduction to Cybersecurity

Cisco

June 13, 2023

ID: 22240e0d-0056-4b02-8a1a-2a6975cca54b

Verify
Google IT Support Professional Certificate (v2)

Google IT Support Professional Certificate (v2)

Google | Coursera

June 5, 2023

ID: 0d2736ee-c2f9-4a49-8f89-733070ab76b3

Verify
Introduction to Docker: Build Your Own Portfolio Site

Introduction to Docker: Build Your Own Portfolio Site

Coursera

October 1, 2022

ID: XQD6EUY7MGES

Verify

Contact

Let's Work Together

Have a project in mind? I'd love to hear from you.