💼 Full-Time Position

Cyber Security Engineer (CTF, Reverse Engineering, Anti-bot & Ethical Hacker experience)

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NielsenIQ
📍 es bòrdes, cataluña, Spain
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Location
es bòrdes, Spain
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Posted
June 02, 2026
Type
Full-Time
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Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

Job Description

We are looking for a cybersecurity specialist to help us scrape data for 12 billion products and manage over 20 billion data points in a rapidly evolving anti‑bot market.

What You’ll Do

  • Analyze web and mobile applications (APK/IPA) to uncover hidden mechanisms; disassemble code and focus on cryptographic functions that secure our systems.
  • Evaluate and bypass advanced security protocols such as TLS, HTTP/2, HTTP/3, WebSockets, DoH, and session management; identify vulnerabilities to improve data extraction.
  • Build robust Python scripts and frameworks that automate bypass procedures and dynamically adjust security measures, including TLS stacks and JavaScript patching.
  • Engineer sophisticated stealthy scraping techniques—browser patching, headless browser evasion, proxy tunneling, and human‑behavior emulation—to keep operations discreet.
  • Continuously test, disrupt, and improve our tools to stay ...