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J.R. De Guzman

Network & Cybersecurity Expert

Languages

Filipino | English

Skills

Network Engineering, Cloud Computing, AWS Cloud Infrastructure, Network Security, AWS Cloud Security, AWS Cloud Networking, Network Virtualization (VMware), Vulnerability Scanning (Tenable Nessus)

Professional Experiences

Sutherland Global Services Philippines Inc. – Cybersecurity Support Engineer
December 2024 – Present

  • Provided technical support for Nessus across Linux, Windows, and macOS environments.
  • Troubleshot system, configuration, and network issues; escalated complex cases to Level 2 support.
  • Collaborated with SMEs to enhance the Nessus knowledge base and improve resolution accuracy.
  • Performed vulnerability and credentialed scans using Nessus across cloud platforms and databases.

Arcane Strategies (Cloud Armory) – L2 Network & Cybersecurity Engineer
July 2024 – August 2024

  • Maintained and secured Windows and Linux servers through regular OS updates and patching.
  • Monitored AVS, IDS, SIEM, and system logs to detect and respond to security incidents.
  • Designed and managed AWS VPC components, EC2, S3, ALB, WAF, and security configurations.
  • Deployed applications via manual processes and CI/CD pipelines (Jenkins, Git).
  • Implemented VPN solutions (IPSec, OpenVPN) for secure remote access.

Accenture – Network Engineer
Nov 2020 – May 2024

  • Supported and maintained Cisco Catalyst, ISR, and Meraki network devices.
  • Performed IOS and firmware upgrades to improve stability and security.
  • Managed LAN, WAN, and WLAN environments and resolved complex network issues.
  • Administered Cisco Meraki Dashboard and enforced identity-based security policies.

Teaching Experiences

Edukasyon.PH – Program Instructor
Jun 2023 – Present

  • Delivered hands-on AWS re/Start training, preparing learners for entry-level cloud roles.
  • Mentored students through labs, exercises, and career readiness activities to improve completion and placement outcomes.
  • Kept curriculum aligned with current AWS technologies and best practices.

Iverson Associates Sdn Bhd – AWS Authorized Instructor | Consultant
Oct 2024 – Present

  • Conducted virtual and in-person AWS training on cloud fundamentals and security best practices.
  • Developed and delivered official AWS courses, including AWS Discovery Day – Securing Your AWS Cloud and AWS Technical Essentials.
  • Translated complex AWS concepts into practical, learner-friendly instruction.

Lumify Work PH – AWS Authorized Instructor | Consultant
Sep 2024 – Present

  • Delivered AWS training sessions for individuals and enterprise learners.
  • Facilitated AWS Cloud Practitioner Essentials to build foundational cloud skills.
  • Maintained course relevance by incorporating AWS updates and industry best practices.

Accenture – Volunteer AWS Instructor
Nov 2020 – May 2024

  • Delivered internal AWS workshops and seminars to upskill staff in cloud technologies.
  • Led hands-on training sessions to strengthen AWS adoption and real-world application

Education

Technological Institute of the Philippines -Bachelor of Science in Computer Engineering
June 2015 – March 2020

Certifications

  • Cisco Certified Network Associate (CCNA) – (2019 – Present)
  • Cisco Certified Specialist – Security Core (2022 – Present)
  • AWS Certified Solutions Architect – Associate (2021 – Present)
  • AWS Certified Security – Specialty (2023 – Present)
  • AWS Authorized Instructor (AAI) (2024 – Present)
  • CompTIA Security+ ce (2021 – Present)
  • MCSA: Windows Server 2012 (2021 – Present)
  • VMware Certified Professional – Network Virtualization 2023 (2023 – Present)

Awards and Citations

  • AWS Build On, ASEAN 2020 (Build On, Philippines 2020) – 3rd Runner Up
  • AWS Community Builder – Networking and Content Delivery – 2023