About

Jaffar Debsawi

I'm a cyber security undergraduate at Macquarie University and an AI/ML engineer, based in Sydney. I like building things. I started Obsecura to put the stuff I'm working on all in one place.

What I work with

Machine learning

Collecting and labelling the data, training, and measuring whether the result generalises rather than just fitting what it was shown.

Security

Offensive practice in controlled environments — enumeration and service mapping, web application testing, privilege escalation, and writing findings up so someone can act on them.

Software

Front end, API, deployment and the tests that keep it working after it is live. Whatever getting a thing finished actually takes.

Toolkit
Languages
  • Python
  • JavaScript
  • Java
  • Dart
  • Lua
Machine learning
  • scikit-learn
  • LangChain & LangGraph
  • RAG pipelines
  • Model evaluation
Security
  • Nmap
  • Burp Suite
  • Metasploit
  • Web app testing
  • HTB & TryHackMe
Building & shipping
  • Cloudflare Workers
  • D1 & SQL
  • Flutter
  • Firebase
  • Git
Currently
Studying
BSc Cyber Security, Macquarie University
Expected 2027
Working
AI/ML engineer
Building LLM pipelines and full-stack tooling
Availability
Open to work and opportunities
Machine learning, security, or anything that needs both
Based in
Sydney, Australia
Open to remote

Get in touch

If you have something you think I'd find interesting — work, a problem worth solving, or a question about anything here — the fastest way to reach me is email.

Jaffar.Debsawi@obsecura.net linkedin.com/in/sjd4 github.com/jaffardebsawi