Protocol Security Engineer

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September 19

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Dark Matter Labs

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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.

51 - 200 employees

🔒 Cybersecurity

🤖 Artificial Intelligence

🏢 Enterprise

📋 Description

• Conduct threat modeling and internal reviews of Solidity contracts, blockchain state transition functions (Rust), and other critical systems • Track hacks, exploits, and attack vectors across the industry and translate lessons into actionable security improvements • Embed security best practices across development teams and influence secure design • Take ownership of protocol components with a focus on secure architecture and implementation • Participate in security investigations and incident response, often under time-sensitive and high-pressure conditions • Focus on safeguarding zkSync’s core components: smart contracts, ZK circuits, and blockchain nodes • Stay at the forefront of security research and industry best practices

🎯 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 (preferred but not required) • Comfort with protocol-level debugging and root-cause analysis • Proficiency in strongly typed languages (e.g., C++, Scala, Go); Rust and Solidity are primary languages but not mandatory • Deep understanding of algorithms, data structures, and their computational/memory complexities • Experience implementing data structures and algorithms from scratch • Fluent written and spoken English