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Protocol Security Engineer

Remote
Market range (est.) $120k–$245k
◆ 6/10 cryptoweb3fintechl1l2
About this role

Join Matter Labs as a Protocol Security Engineer to enhance security in blockchain systems through proactive threat modeling, incident response, and secure design practices.

Description

Matter Labs is focused on building zkSync, a layer-2 scaling solution for Ethereum that utilizes zero-knowledge rollups to enhance scalability and privacy.

Responsibilities
  • Break things on purpose. Threat-model and review Solidity contracts, blockchain state transition functions in Rust, and other critical systems before an attacker gets the chance.
  • Own protocol components. Take responsibility for the secure architecture and implementation of the components you adopt, from design review through production.
  • Track the adversary. Follow hacks, exploits, and new attack vectors across the industry and convert the lessons into concrete improvements in our systems.
  • Scale security through others. Embed secure-design practice across development teams and influence architecture decisions early, without formal authority.
  • Use AI on defense. Apply modern AI systems to scale security work, while accounting for attackers using the same tools.
  • Respond when it counts. Join security investigations and incident response, often under time pressure with incomplete information.
Requirements
  • A record in security engineering or security research: threat modeling, security-focused code review, or vulnerability research on production systems, with findings you can walk through mechanism by mechanism.
  • Proficiency in strongly typed languages such as C++, Go, or Scala. Rust and Solidity are our primary languages, and prior experience with them is not required.
  • Deep grounding in algorithms and data structures, including their computational and memory complexity, with experience implementing them from scratch.
  • Protocol-level debugging and root-cause analysis on complex distributed systems.
  • Working knowledge of recent security incidents in the blockchain space and the prevention techniques behind them.
  • Clear written and spoken English, the company's working language.
  • Nice to have: Hands-on experience with Solidity smart contracts, ZK circuits, or core blockchain protocols. Public security research, audit reports, bug-bounty results, or CTF history all count as evidence.
Job Details
Market range (est.)$120k–$245k
LocationRemote
AI Score★★★★★★☆☆☆☆ 6/10
PostedSep 27, 2026 (15d ago)
Tags & Skills
cryptoweb3fintechl1l2Security Engineerremote
Tech Stack
SolidityRustC++GoScala

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