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LeoOS1.0.0(tty1)·monokaibuild
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visitor@leonardo:~$ whoami

LEONARDO NGUYEN

const role = "security-minded fullstack engineer"

// San Diego, CA· ships end-to-end, then hardens it · open to new-grad & internship roles

LeoOS ready. Type help, explore with cd projects, or just scroll.
visitor@leonardo:~$

try cd projects · ls · cat argus.md · sudo · dance, or use the menu above

visitor@leonardo:~/projects$ ls -la
total 6
$ cat argus/README.md

# Argus

2026

> A hundred-eyed scanner for phishing links and malicious files.

A defensive analysis platform that vets suspicious links and files. It expands and de-obfuscates URLs, follows redirect chains, scores look-alike domains, and detonates files through signature, YARA, and heuristic scanning inside an isolated worker. Every check rolls up into an explainable verdict with evidence, surfaced through a Next.js dashboard and API.

## highlights
  • -Expands shortened / obfuscated URLs and follows full redirect chains
  • -Typosquat and look-alike domain detection against a brand watchlist
  • -Layered file scanning (signatures + YARA + heuristics) in an isolated worker
  • -Aggregates threat-intel into one explainable risk verdict, with evidence
## stackTypeScriptNext.jsNode.jsPythonYARADocker
visitor@leonardo:~$ man leonardo
LEONARDO(1)LEONARDO(1)
NAME
leonardo, a security-minded fullstack engineer
SYNOPSIS
leonardo [--fullstack] [--appsec] [--systems] <problem>
DESCRIPTION
Builds and ships end-to-end products, then breaks and hardens them. Comfortable across the whole stack, from React / Next.js interfaces down to C++ search and application-security tooling. Computer Science, based in San Diego, CA.
OPTIONS
--fullstackReact · Next.js · Node · REST APIs · data pipelines
--appsecURL & malware analysis · sandboxed detonation · threat intel
--systemsC++ · alpha-beta search · UCI · low-level rigor
EXAMPLES
$ leonardo --appsec "screen the unknown"  # → argus
$ leonardo --fullstack "ship the product"  # → statjack, mesa
$ leonardo --systems "make it fast"  # → mr-henderson
AUTHOR
Written by Leonardo Nguyen.
2026LEONARDO(1)
visitor@leonardo:~$ nmap -sV -T4 leonardo

Starting Nmap 7.95 ( https://nmap.org )

Nmap scan report for leonardo (127.0.0.1)

Host is up (0.00031s latency). Not shown: 992 closed ports.

PORTSTATESERVICEVERSIONAPPLIED
22/tcpopensshalways-learning 4.xevery build
80/tcpopenhttpReact · Next.js · Tailwindstatjack, ko-rush
443/tcpopenhttpsTypeScript · Node · REST APIsargus, statjack
3000/tcpopenfullstackend-to-end product buildsmesa, statjack
8080/tcpopenappsecURL/file scanning · sandboxing · threat intelargus, tartarus
5432/tcpopendataSQL · pipelines · World Bank APIstatjack
9090/tcpopensystemsC++ · alpha-beta · UCImr-henderson
9229/tcpopenscriptingPython · automationargus, tooling

Service detection performed. 8 services up, host is online.

visitor@leonardo:~$ ./contact.sh

let's build something_

open to new-grad & internship roles, freelance builds, and anything where craft matters. the inbox is always open.

mail ▸githublinkedin