Professional Experience

My journey in the tech industry

SysWorld Servicios S.A

Buenos Aires, Argentina

Tech Leader

January 2023 - Present

Key Achievements

Led the Technology area and built a complete IT team.
Redesigned operational infrastructure and migrated critical services from VBScript to a modern Python (Flask) and Svelte architecture.
Led development of Argentina’s primary certified email platform, contributing across front-end and back-end.
Managed AWS infrastructure.

Evolved Hosting

Spain

Software Engineer

December 2019 — August 2021

Key Achievements

Developed the main website and a connection validation system backed by a custom firewall.
Implemented internal tools to automate operational tasks for the network analysis team, improving traffic inspection efficiency and anomaly detection.

RoozServers

Madrid, Spain

Software Engineer

December 2019 — August 2021

Key Achievements

Built internal systems for virtual machine management on Proxmox VE and contributed to the main website.
Designed specialized firewalls using eBPF/XDP and libpcap.
Performed reading, classification, and analysis of malicious traffic, including DDoS attacks.

Personal Projects

Side projects and passion experiments

cuarzo-legacy

Cuarzo is a medium-level programming language, aimed at creating x86 software for Linux

Tech Stack
Python C Assembly Linux

samp-cookie-exploit

SA-MP authentication process exploit, better known as "server full exploit"

Tech Stack
Python

hiddenote

A simple encrypted notepad application built with Python and PyQt6.

Tech Stack
Python Qt Desktop

pizza-detector

Small CNN model to classify images based on whether they contain a pizza or not.

Tech Stack
Python AI

pawn-easing-functions

Animation system through easing equations.

Tech Stack
Pawn

route-tracing

GPS style route tracing system using path finding.

Tech Stack
Pawn

samp-reverse-proxy

Firewall for game servers (San Andreas Multiplayer) that allows the integration of several nodes to the mother server by using the authorization mechanism of the game protocol.

Tech Stack
Python NGINX

samp-rce-fix

This repository provides a fix for the RCE vulnerability found in previous versions of the SA-MP R5 client.

Tech Stack
C++ Reverse Engineering

Education

Academic background and formal training

Teclab Higher Technical Institute

Argentina

Senior Cybersecurity Technician

2023 - 2025 (Graduated)

EducacionIT

Argentina

Network Hacking Certification

2025

Alexander Chwojewski

Building digital experiences with modern technologies and creative solutions.

Connect

GitHub LinkedIn

© 2025 Alexander Chwojewski. All rights reserved.

Made with using Svelte & Tailwind