Senior Antibot Engineer (Cybersecurity)

TL;DR

Senior Antibot Engineer (Cybersecurity): Developing and optimizing stealthy data extraction systems and bypassing anti-bot mechanisms with an accent on reverse engineering and network protocol analysis. Focus on bypassing advanced security protocols, implementing browser patching, and creating robust Python frameworks for automated scraping.

Location: Must be based in Madrid, Barcelona, Valladolid (Spain), or Portugal

Compensation: EUR 38,000 - EUR 70,000 yearly

Company

The world’s leading consumer intelligence company, delivering a complete understanding of consumer buying behavior through advanced analytics.

What you will do

• Reverse engineer and decompile web and mobile applications (APK/IPA) to uncover hidden cryptographic mechanisms.
• Bypass advanced security protocols such as TLS, HTTP/2, HTTP/3, WebSockets, and DoH.
• Develop custom Python scripts and frameworks to automate bypass procedures and patch JavaScript on the fly.
• Implement stealthy scraping techniques, including browser patching, headless browser evasion, and proxy tunneling.
• Continuously test and improve internal tools to stay ahead of evolving anti-bot defenses.

Requirements

• Expertise in reverse engineering using tools like IDA Pro, Ghidra, or custom solutions.
• Deep knowledge of network protocols including TLS, HTTP/2, WebSockets, and DoH.
• Advanced Python development skills with the ability to design robust, efficient solutions for complex challenges.
• Experience dissecting both binary and web code to uncover core functionalities.
• Based in Spain (Madrid, Barcelona, Valladolid) or Portugal.

Culture & Benefits

• Flexible working environment.
• Volunteer time off.
• Access to LinkedIn Learning.
• Employee-Assistance-Program (EAP).