About

đź‘‹ Who Am I?

I’m Justin (aka JKT), a driven technology professional with hands‑on expertise in ArcGIS Enterprise, offensive security, and automation scripting. I diagnose complex geospatial problems and deliver reliable, high‑quality solutions for end users. I author knowledge articles, support enterprise usage, mentor team members and resolve complex global escalations. Disciplined and curious, I continuously advance my skills through hands‑on labs and industry certifications.
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Work Experience

GIS Enterprise Support Analyst - Esri Malaysia (Mar 2025 – Present)

  • Provide high-quality technical support for ArcGIS Enterprise and related technologies, handling complex escalations in collaboration with internal distributors across global markets.
  • Identify and troubleshoot issues related to usage, configuration, performance, offline mapping, web and mobile applications, and Distributed Collaboration.
  • Utilize expertise in SQL Server, PostgreSQL, Oracle, and other databases to manage data and support GIS operations.
  • Actively author internal Knowledge Articles and technical documentation, ensuring solutions are accurate, accessible, and aligned with team standards.
  • Regularly collaborate with cross-functional teams to brainstorm and troubleshoot complex GIS issues.
  • Mentor and support new team members through knowledge transfer initiatives, best practices and technical guidance to accelerate onboarding.
  • Manage in-house, on-premise Linux ArcGIS Enterprise deployments and databases, including SSL Certificates management for Tomcat and IIS-hosted HTTPS environments used by internal APAC Support Analysts.

SOC Analyst - APU SOC Center (Dec 2023 – Mar 2024)

  • Monitoring of event logs on networks, systems, devices, and infrastructure for unusual or suspicious activity.
  • Reviewing and categorizing security alerts and potential threats. Experience handling SIEM (MSSGard).
  • Performing active monitoring and working closely with team leads and SOC Manager.

IT Intern - LAB Security Analyst, APU Technology Services (Aug 2022 – Feb 2024)

  • Conducted vulnerability assessments and penetration testing to identify security weaknesses within LAB clients.
  • Compiled detailed reports documenting findings, strategic recommendations, and remediation actions.

Education

  • Bachelor of Science (Honours) in Computer Science (Cyber Security) - (2021 – 2024)

Certifications

  • OSCE3 - Offensive Security Certified Expert (In Progress)
  • CRTL - Certified Red Team Lead (06/2026)
  • CRTSv2 - Certified Red Teamn Specialist (06/2026)
  • CRTO - Certified Red Team Operator (05/2026)
  • CPTS - Certified Penetration Testing Specialist (04/2026)
  • 5x HTB Pro Labs - POO, Dante, Zephyr, Offshore, RastaLabs (09/2025)

Areas of Expertise

  • GIS Enterprise Systems & ArcGIS Online
  • Malware Development & AV/EDR Evasion
  • Active Directory, WebApp Security & API Pentesting
  • Red Team Operations, C2 Frameworks & Attack Simulation