d
demetrioreyes

Demetrio R

@demetrioreyes

Python Automation Engineer and Ethical Hacker

Dominican Republic
Spanish
About me
Python engineer and ethical hacker with 12+ years building automation, web scrapers, mobile apps and secure backends. I work as a Red Team Operator testing web apps, APIs and e-commerce platforms, and I once found a checkout flaw that let orders be placed without paying. I can help you: extract data from hard sites (anti-bot, proxies), automate browser tasks, build Flutter apps for Android and iOS, and find security holes before attackers do. Clean code, clear communication, on-time delivery. Message me before ordering. I reply fast.... Read more

Skills

d
demetrioreyes
Demetrio R
Offline • 
Average response time: 1 hour

See my services

Cross-Platform Development
I will develop a flutter mobile app for android and ios
From$150 / projectMore details
Data Scraping
I will build a python web scraper for any website, including anti bot sites
From$35 / projectMore details

Work experience

PipxLabs

Red Team Operator and Software Developer

PipxLabs • Full-time

Dec 2025 - Present • 10 mos

Red Team Operator in a software factory. I test web apps, APIs, mobile apps, SaaS and e-commerce platforms with black-box and authenticated testing, and report XSS, SQL injection, auth bypass, CORS, rate limit and business logic flaws. Highlight: found a critical e-commerce flaw that allowed orders without payment. I write detailed reports with fixes and run retests.

Fiverr

Freelance Python Developer

Fiverr • Freelance

Jan 2018 - Apr 2019 • 1 yr 3 mos

Delivered custom software for individual clients and small businesses on Fiverr: automation scripts, web scraping, API integrations, web development and data processing, with fast turnaround and clear communication.