At Zyte, we're pioneering the next revolution in web data extraction, empowering businesses to focus on innovation. Companies often struggle with challenges like navigating dynamic web structures, countering anti-scraping measures, and ensuring data accuracy. We tackle these obstacles by providing best-in-class tools for seamless, reliable web data extraction.

With over a decade of expertise, we've become the trusted solution for over 3,000 companies and a million developers, helping them achieve a competitive edge and drive sustainable growth. We are a diverse and enthusiastic team of data nerds, tech aficionados, and hackers. We thrive on collaborating with our smart, passionate teammates and customers to solve complex problems in data science and engineering.

Join us and be part of the data revolution!

About the Job Reverse engineering is at the heart of how Zyte stays ahead in the banning war. We've cracked some of the hardest antibots on the web -, but the ground shifts weekly: antibots ship new sensor formats overnight, obfuscation schemes mutate, and new fingerprinting surfaces appear faster than any team could chase by hand. It's about building the tools, pipelines, and automation that let both engineers and AI agents solve them at scale. You'll work at the intersection of deep JS/VM reverse engineering and modern AI-assisted engineering - using LLMs and agentic tooling aggressively to compress the loop between "new detection surface discovered" and "solution shipped." Roles &





Responsibilities Reverse-engineer the hardest antibot and fingerprinting systems on the web, across JS VMs, WASM, and polymorphic/obfuscated code. Build the JS function tracing, deobfuscation pipelines, and fingerprint-inspection tooling that turn manual reverse-engineering investigations into fast, repeatable, largely automated workflows. Demonstrated use of AI tooling (LLMs, coding agents, automation) to accelerate your own engineering, with a strong instinct for what to automate and when. Strong proficiency in JavaScript/Node.Js and Python, with a broad programming background and exceptional problem-solving ability. Strong research, debugging, fuzzing, and reverse-engineering skills, including static, dynamic, and concolic analysis. Hands-on experience reversing JavaScript VMs, WASM, and heavily obfuscated or polymorphic code. A deep understanding of operating systems and computer networking concepts. Adept with tools such as Wireshark, Burp Suite, and similar for intercepting and debugging network traffic. Bonus points for Experience with reverse-engineering tools like IDA, Ghidra, Frida, or Babel.

Experience with C/C++ and Rust. Core contributions to Mozilla or Chromium projects. Become part of a self-motivated, progressive, multi-cultural team Have the freedom and flexibility to work from where you do your best work Attend conferences and meet with team members from across the globe Work with cutting-edge open source technologies and tools

📌 Senior Ai?Powered Reverse Engineer For Web Defenses (Madrid)
🏢 Zyte
📍 Madrid