Cybersecurity Engineer (Ethical Hacking)

TL;DR

Cybersecurity Engineer (Ethical Hacking): Developing and optimizing tools to bypass anti-bot mechanisms and scraping data for billions of products with an accent on reverse engineering and network protocol analysis. Focus on analyzing binary and web code, bypassing TLS/HTTP/2 security, and implementing stealthy human-behavior emulation.

Location: Madrid, Barcelona, or Valladolid, Spain

Compensation: EUR 38,400 - EUR 55,000 yearly

Company

World’s leading consumer intelligence company providing holistic retail insights and advanced analytics through state-of-the-art platforms.

What you will do

• Analyze web and mobile applications (APK/IPA) via reverse engineering to uncover hidden mechanisms and cryptographic functions.
• Evaluate and bypass advanced security protocols including TLS, HTTP/2, HTTP/3, WebSockets, and DoH.
• Develop custom Python scripts and frameworks to automate bypass procedures and patch JavaScript on the fly.
• Engineer stealthy scraping techniques using browser patching, headless browser evasion, and human-behavior emulation.
• Continuously test and disrupt defenses to maintain data extraction efficiency.

Requirements

• Expertise in reverse engineering using tools like IDA Pro, Ghidra, or custom solutions.
• Deep knowledge of network protocols such as TLS, HTTP/2, WebSockets, and DoH.
• Advanced Python development skills for implementing robust and efficient solutions to complex challenges.
• Strong commitment to upholding the highest ethical hacking standards.

Culture & Benefits

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