Jeroen Tenorio
Network & Information Security
About
I study how systems break so I can learn to keep them standing.
I’m a Computer Science student at De La Salle University, majoring in Network and Information Security. My hands-on work so far is in vulnerability assessment and penetration testing, network tooling in Python, and building CTF challenges for our security org.
I’m looking for a cybersecurity internship where I can support security operations and automate the repetitive parts.
- CGPA
- 3.52
- Dean’s List
- 1st Honors, 5 terms
- Graduating
- 2028
Selected projects
Vulnerability Assessment & Penetration Test
Advanced & Offensive Security coursework, 2026
Ran reconnaissance, enumeration and exploitation against the “Empire: Lupin One” vulnerable VM, then scored every finding with CVSS v3.1 to prioritize remediation by impact on confidentiality and integrity.
Result: Top-ranked VAPT report in the course
Tools: Penetration Testing, CVSS v3.1, Privilege Escalation, Linux
Network Diagnostics: ICMP Ping & Traceroute
Network Systems coursework
A raw-socket ICMP ping that computes checksums, measures round-trip time and decodes ICMP errors into readable messages, plus a co-developed traceroute that maps up to 30 hops and geolocates public hops through a rate-limited REST API.
Tools: Python, Raw Sockets, ICMP, REST API
Ping source on GitHub (opens in a new tab)Traceroute source on GitHub (opens in a new tab)
PinoyBot: Filipino Code-Switching Identifier
Machine Learning coursework, team project
Trained and compared Decision Tree and Naive Bayes classifiers on 41,884 annotated Filipino-English tokens, building the character n-gram and context features and choosing the model by macro F1 to handle heavy class imbalance.
Result: 95.21% accuracy on a held-out test set
Tools: Python, scikit-learn, NLP
Owl Lumetri Media
Client website, 2026
Website for a content production studio, built on Next.js with a Sanity CMS so the team can publish new work without a developer. It features interactive 360° car spins and interior tours, a video-led hero, watermarked media and a contact form that emails the studio directly.
Tools: Next.js, TypeScript, Sanity CMS, Tailwind CSS, Framer Motion
Credentials & experience
Certifications
Certified in Cybersecurity (CC)
ISC2
Jun 2026 – Jun 2029Verify on Credly (opens in a new tab)
Certificate of Competency: Junior VAPT Practitioner
De La Salle University
Awarded for producing the top-ranked VAPT report in the course.
Aug 2026
CTFs & competitions
Advanced & Offensive Security Course CTF
De La Salle University
Champion2026
CyberPH Packet Capture CTF 2026
CyberPH
Participant2026
CSCTF 2026
Upcoming
PINK+ CTF
Upcoming
Events & programs
Huawei Innovators Camp 2026
Huawei
- 1st Runner-Up, Pitching Competition (team)
- Chosen by the group mentor as the group’s standout member, one of 5 across the camp
Nov 5 – 6, 2026
Leadership
Research & Training Officer
Information Security Organization (ISO)
Builds custom CTF challenges and technical workshops that train members in applied cybersecurity.
Oct 2026 – Present
Finance Head
National Service Training Program (NSTP – CWTS)
Ran the Google Sheets that tracked funds, daily operations and sales inventory during NSTP week.
Jan 2025 – Aug 2025
Finance Officer
Google Developer Groups on Campus (GDGoC)
Sep 2024 – Aug 2026
Contact
Let’s talk.
Open to cybersecurity internships. Email is the fastest way to reach me.