Protocol Security Engineer
@ Matter Labs

Hybrid
$180,000
Hybrid
Full Time
Posted 12 hours ago

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XXXXXXXXX XXXXXXXXXXX XXXXXXXX****** @matterlabs.io
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Job Details

About Matter Labs

At Matter Labs, we believe freedom drives progress and prosperity. We are a team on a mission to advance personal freedom for all through our open source technology stack, zkSync, built on Ethereum using advanced zero-knowledge proofs.

Role Overview

The Protocol Security Engineer role blends hands-on security work with the opportunity to influence protocol security from the earliest stages of development. You will safeguard key components such as smart contracts, ZK circuits, and blockchain nodes while keeping up with security research and industry best practices.

Responsibilities

  • Conduct threat modeling and internal reviews of Solidity contracts and blockchain state transition functions (Rust).
  • Track industry hacks, exploits, and attack vectors, translating findings into security improvements.
  • Embed security best practices across teams and influence secure design.
  • Take ownership of protocol components with focus on secure architecture and implementation.
  • Participate in security investigations and incident response under high-pressure conditions.

What We’re Looking For

  • A curiosity and hacker mindset to understand system vulnerabilities.
  • Strong security instincts and anticipation of adversarial behaviors.
  • Familiarity with recent security incidents in the blockchain space and relevant prevention techniques.
  • Practical experience with Solidity smart contracts, ZK circuits, or core blockchain protocols.
  • Proficiency in strongly typed languages (e.g., C++, Scala, Go) with emphasis on Rust and Solidity.
  • Deep understanding of algorithms and data structures.
  • Excellent written and spoken English skills.

Key skills/competency

Protocol Security Engineer, Zero-Knowledge Proofs, Smart Contracts, Blockchain, Threat Modeling, Security Research, Rust, Solidity, Cryptography, Incident Response

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How to Get Hired at Matter Labs

🎯 Tips for Getting Hired

  • Research Matter Labs: Understand their mission and recent projects.
  • Customize your resume: Highlight blockchain and security expertise.
  • Prepare technically: Study Rust, Solidity, and cryptography.
  • Practice interviews: Emphasize protocol security experiences.

📝 Interview Preparation Advice

Technical Preparation

Review Solidity and Rust basics.
Study zero-knowledge proofs theory.
Practice threat modeling techniques.
Refresh fundamental algorithms and data structures.

Behavioral Questions

Describe a past security incident you managed.
Explain your approach to problem-solving.
Discuss how you adapt to high-pressure tasks.
Share teamwork experience in security projects.

Frequently Asked Questions