Protocol Security Engineer at Matter Labs

Matter Labs

Global Remote·1w ago

Mid LevelFull-timeRustC++GitGo

Salary Range

$102,000 - $138,000 /year

Estimated

This salary is estimated based on similar roles. The actual salary may vary.

About the Role

We are seeking a Protocol Security Engineer to join our Security Team at Matter Labs. This role blends hands-on security work with the opportunity to influence protocol security from the earliest stages of development. You’ll focus on safeguarding ZKsync’s core components—smart contracts, ZK circuits, and blockchain nodes—while staying at the forefront of security research and industry best practices.

Key Responsibilities

→Intentionally breaking things by conducting threat modeling and internal reviews of Solidity contracts, blockchain state transition functions (Rust), and other critical systems
→Tracking the latest hacks, exploits, and attack vectors across the industry, and translating lessons learned into actionable security improvements
→Embedding security best practices across development teams and influencing secure design
→Taking ownership of protocol components with a focus on secure architecture and implementation
→Participating in security investigations and incident response, often under time-sensitive and high-pressure conditions

Requirements

✓Curiosity & hacker mindset—you want to know how things break, not just how they work
✓Strong security instincts with the ability to anticipate adversarial behaviors
✓Familiarity with recent security incidents in the blockchain space and knowledge of prevention techniques
✓Practical experience with Solidity smart contracts, ZK circuits, or core blockchain protocols
✓Comfort with protocol-level debugging and root-cause analysis
✓Proficiency in strongly typed languages (e.g., C++, Scala, Go)
✓Deep understanding of algorithms, data structures, and their computational/memory complexities
✓Experience implementing data structures and algorithms from scratch
✓Fluent written and spoken English