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Zyte

Automates scalable web data extraction

Senior Reverse Engineer

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timeRemote in Poland€90k - €110kRemote

About the Job

Requirements

  • A hacker mindset, including the ability to rapidly develop proof-of-concepts and working tools, and comfort with uncertainty and open-ended work.
  • Demonstrated use of AI tooling, including large language models, coding agents, or automation, to accelerate engineering, with judgment about what and when to automate.
  • Strong proficiency in JavaScript/Node.js and Python, with a broad programming background and problem-solving ability.
  • Strong research, debugging, fuzzing, and reverse-engineering skills, including static, dynamic, and concolic analysis.
  • Hands-on experience reversing JavaScript virtual machines, WebAssembly, and heavily obfuscated or polymorphic code.
  • A deep understanding of operating systems and computer networking concepts.
  • Adeptness with tools such as Wireshark and Burp Suite for intercepting and debugging network traffic.
  • Understanding of browser engines, browser fingerprinting, and antibot and anti-scraping mechanisms.
  • Ability to prioritize logically using a measurement-backed strategy and collaborate effectively.

Responsibilities

  • Reverse-engineer antibot and fingerprinting systems across JavaScript virtual machines, WebAssembly, and polymorphic or obfuscated code.
  • Build JavaScript function-tracing, deobfuscation pipelines, and fingerprint-inspection tools to turn manual investigations into fast, repeatable, largely automated workflows.
  • Use large language models, agents, and custom automation to deobfuscate, classify, and diagnose detection surfaces, and rapidly prototype and ship tooling.
  • Build and maintain website intelligence pipelines with checkpointed history, enabling updates to be compared against a known-good baseline.
  • Provide AI reverse-engineering and ban-resolution systems with the context, signals, and structured intelligence needed to resolve most cases autonomously.
  • Turn one-off reverse-engineering results into durable tools, rules, and pipelines for engineers and AI agents.
  • Collaborate across engineering to integrate tooling into the custom browser and automation stack, and mentor others in AI-augmented reverse-engineering techniques.

Desired Qualifications

  • Experience with reverse-engineering tools such as IDA, Ghidra, Frida, or Babel.
  • Experience building tools or pipelines that feed machine-learning or AI systems.
  • Experience with C/C++ and Rust.
  • Core contributions to Mozilla or Chromium projects.

About the Company

Zyte

Automates scalable web data extraction

Zyte provides an end-to-end platform to collect web data at scale with a focus on ethics and compliance. Its Zyte API is a full-stack tool that crawls, unblocks, and extracts public data while automatically handling anti-bot and proxy management, so developers avoid writing manual parsing code. Zyte Data offers white-glove data extraction with a dedicated team and 24/7 support, plus a legal function and EWDCI involvement to uphold high ethical and legal standards. The goal is to help data-driven organizations access accurate web data efficiently while minimizing compliance risk and total cost of ownership.

Company size
201-500
Company stage
Debt Financing
Total funding
$3M
Headquarters
Cork, Ireland
Founded
2010

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