Protocol Security Engineer

Job not on LinkedIn

🕒 August 26

🌏 Anywhere in the World

⏰ Full Time

🟡 Mid-level

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 18%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Dark Matter Labs

WebsiteLinkedInAll Job Openings

51 - 200 employees

🔒 Cybersecurity

🤖 Artificial Intelligence

🏢 Enterprise

Cybersecurity • Artificial Intelligence • Enterprise

Dark Matter Labs is a company focused on developing cutting-edge solutions in the fields of cybersecurity and artificial intelligence. By leveraging advanced technologies, it aims to create secure and efficient systems that address the challenges of the modern digital landscape. Dark Matter Labs is dedicated to pushing the boundaries of innovation while ensuring the safety and integrity of information.

📋 Description

• Protect ZKsync's core, including smart contracts, ZK circuits, and blockchain nodes • Conduct internal security reviews of critical components • Threat-model and review Solidity contracts, Rust blockchain state transition functions, and other critical systems • Own secure architecture and implementation of adopted protocol components from design review through production • Track industry hacks, exploits, and emerging attack vectors and convert lessons into system improvements • Promote secure-design practices across development teams and influence architecture decisions early • Apply modern AI systems to scale defensive security work while accounting for attacker use of AI • Participate in security investigations and incident response under time pressure and incomplete information

🎯 Requirements

• Demonstrated record in security engineering or security research, including threat modeling, security-focused code review, or vulnerability research on production systems • Ability to explain security findings mechanism by mechanism • Proficiency in strongly typed languages such as C++, Go, or Scala • Deep grounding in algorithms and data structures, including computational and memory complexity • Experience implementing algorithms and data structures from scratch • Protocol-level debugging and root-cause analysis on complex distributed systems • Working knowledge of recent blockchain security incidents and prevention techniques • Clear written and spoken English • Hands-on experience with Solidity smart contracts, ZK circuits, or core blockchain protocols is nice to have • Public security research, audit reports, bug-bounty results, or CTF history is nice to have

🏖️ Benefits

• Competitive base salary with no geographic pay discounts • Performance-based variable compensation with a defined annual target; may be paid in ZK tokens or cash • Long-term token incentive paid in ZK tokens • New-hire token grants vesting over four years with a one-year cliff • Fully remote work • Occasional travel to team gatherings and industry events • No time tracking (where legally applicable) • Minimum bureaucracy; results matter