Senior AI-Driven Reverse Engineer for Web Anti-Bot Tech

Zyte Group; Madrid; Hybrid; EUR 70,000 - 110,000; Full time

Job summary

Zyte Group in Madrid is hiring a reverse-engineering engineer focused on building scalable tooling and automation to defeat antibot and fingerprinting challenges.

You will work at the intersection of JS/VM reverse engineering and AI-assisted engineering, turning breakthroughs into reusable pipelines and feeding AI systems with structured intelligence.

Join a diverse, global team with the freedom to work from anywhere while tackling dynamic, high-impact security problems.

Qualifications

• Hacker mindset with rapid PoC development and comfort with uncertainty.
• Demonstrated use of AI tooling to accelerate engineering and automation decisions.
• Strong proficiency in JavaScript/Node.js and Python with broad problem-solving ability.
• Strong research, debugging, fuzzing, and reverse-engineering skills.
• Hands-on experience reversing JavaScript VMs, WASM, and obfuscated code.
• Understanding of operating systems and computer networking concepts.
• Adept with Wireshark, Burp Suite, and similar tools for intercepting traffic.
• Understanding of browser engines and anti-scraping mechanisms.
• Ability to prioritize logically in a collaborative environment.

Responsibilities

• Reverse-engineer the hardest antibot and fingerprinting systems across JS VMs, WASM, and obfuscated code.
• Build JS tracing, deobfuscation pipelines, and fingerprint-inspection tooling for automated workflows.
• Use AI aggressively to deobfuscate, classify, diagnose detection surfaces, and prototype tooling.
• Build and maintain website intel pipelines with checkpointed history and diffs against baselines.
• Provide context, signals, and structured intelligence to AI systems for autonomous resolutions.
• Codify reverse-engineering wins into durable tooling for engineers and AI agents.
• Collaborate with engineering to fold tooling into the browser and automation stack and mentor others.

Skills

JavaScript/Node.js

Python

Reverse-engineering

AI tooling

Proof-of-concepts

Fuzzing

Debugging

Static analysis

Dynamic analysis

Tools

Wireshark

Burp Suite

IDA

Ghidra

Frida

Babel

Job description

Zyte Group in Madrid is hiring a reverse-engineering engineer focused on building scalable tooling and automation to defeat antibot and fingerprinting challenges.

You will work at the intersection of JS/VM reverse engineering and AI-assisted engineering, turning breakthroughs into reusable pipelines and feeding AI systems with structured intelligence.

Join a diverse, global team with the freedom to work from anywhere while tackling dynamic, high-impact security problems.