< JERYL TEO />

Hello, my name is

Jeryl Teo.

I turn ambiguous business needs into working digital products.

Full-stack developer and cybersecurity professional with 6+ years of experience in digitalisation and AI-enabled solutions. I find the root problem behind a request, then design, build, and ship the fix end to end.

  • 📍 Singapore
  • 🥇 WorldSkills Singapore Gold, Web Technologies
  • 🛡️ Cyber Security Expert (C4X)
See my work Get in touch

About

I'm a full-stack developer and Cyber Security Expert (C4X) with MINDEF / SAF, where I monitor and defend operational systems. I also hunt down manual, repetitive workflows and build automation to replace them.

Most recently I led Project Lattice, an AI-driven courseware automation and learning-analytics system submitted for the Innovation Award 2026. It cut courseware production effort by 87.5% and removed hundreds of hours of manual analytics work per course cycle.

Before that I built large-scale client websites at Pixelsquad and improved the UI/UX as a frontend developer with Rivervalley Irregulars. Outside of work, I teach swimming and shoot photos.

Experience

  1. 2021–Present

    Cyber Security Expert (C4X)

    MINDEF / SAF · SAF Scholarship (SAS) recipient

    • Monitor and defend operational systems: security monitoring, malware analysis, incident response, and penetration testing across MINDEF systems.
    • Drive internal digitalisation by identifying manual, repetitive workflows and building automation to eliminate them.
  2. May 2025–Apr 2026

    Frontend Web Developer

    Rivervalley Irregulars · Singapore

    • Reworked the website's UI/UX, leading research into a more intuitive and efficient user journey.
    • Built tools that partnering organisations use to work more closely with the team.
    • Managed relationships with external vendors to deliver project objectives.
  3. 2020–2021

    Full-Stack Web Developer

    Pixelsquad Pte Ltd · Singapore

    • Developed front- and back-end of large-scale client websites using Laravel, Vue.js, Inertia.js, Blade, PHP, and WordPress, including agas.org.sg and theshadeslab.com.

Selected Work

Featured · Innovation Award 2026 submission

Project Lattice

An AI-driven system that turns raw learning sources such as textbooks and PDFs into finished courseware: quizzes, flashcards, mind maps, and acronym tables. It runs live AI analytics at course, quiz, and learner level, with automated similarity checks to protect assessment integrity.

Production effort
2,400 → 300 hrs / cycle
Production cost
S$135K → S$17K / cycle
Manual analytics
390 hrs → 0
  • React
  • Node.js
  • Moodle (PHP)
  • AWS
  • On-premise

Skills

Development

  • React
  • Node.js
  • PHP · Laravel
  • Moodle plugins
  • Vue.js · Inertia.js
  • HTML/CSS
  • SQL
  • REST APIs
  • AWS & on-premise deployment
  • WordPress

Digitalisation & Delivery

  • Requirements & root-cause analysis
  • Workflow automation
  • AI content generation
  • Learning analytics
  • End-to-end delivery

Cybersecurity

  • Incident response
  • Malware analysis
  • Penetration testing
  • Security monitoring

Education & Awards

Education

2022–2026

BSc (Hons) Computer Science in Interactive Media and Game Development

Singapore Institute of Technology, joint programme with DigiPen Institute of Technology Singapore

Wellness Champion awardee · President of Peer Supporters, WellThy Minds Project, and Calisthenics · Student Ambassador

2018–2021

Diploma in Multimedia and Infocomm Technology

Nanyang Polytechnic, School of Engineering

Director's List in 4 semesters · 5 distinctions and 14 As across modules

Awards & Recognition

  • WorldSkills Singapore Gold Medal, Web Technologies (2020) Competed against polytechnic and university teams nationwide.
  • Innovation Award 2026 submission: Project Lattice MINDEF-wide innovation award submission for AI-driven courseware automation.
  • SAF Scholarship (SAS) Cyber Security Expert (C4X) scheme.

Contact

Have a project, a stubborn manual workflow, or a role in mind? Drop me an email and I'll get back to you as soon as I can.

Say hello