web reverse engineer & cybersecurity researcher
I'm Marc. I started programming when I was 14, mostly out of curiosity about how websites and systems actually work behind the scenes. Over time, I naturally moved towards web monitoring and automation, reverse engineering, and cybersecurity. Most of what I do revolves around understanding how platforms behave, from client-side code and network traffic to APIs and anti-bot systems, and using that knowledge to build reliable tools and solutions.
I'm often available for freelance work on anything involving web reverse engineering, anti-bots and web automation. If that sounds interesting, reach me.
Self-employed · Remote
Contract work in the monitoring and data-collection sector: protected endpoints, obfuscated JavaScript, browser fingerprinting and challenge–response flows.
Copsneak Monitors (Acquired by Zephyr Monitors) · Remote
Designed and operated a distributed sneaker monitoring platform in Python and Go, Stripe billing and dashboard around it. Latency, reliability and infrastructure cost were the product. Served a 300+ user base and 20+ recurring subscriptions until the company was sold in 2022.
Reverse engineering of the tmpt reCaptcha token and a pure-Python generator for its tokens. Reference implementation at tmpt-python-generator.