Matter Labs · 1 month ago
Protocol Security Engineer
United States
Full-time
Remote
Mid LevelMatter Labs is focused on advancing freedom through the mass adoption of crypto by building ZKsync, a verifiable blockchain network. They are seeking a Protocol Security Engineer to enhance the security of their core components and influence protocol security from the early stages of development.
BlockchainEthereumInternetSoftware
Responsibilities
Intentionally breaking things — 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
Qualification
Required
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
Comfort with protocol-level debugging and root-cause analysis
Proficiency in strongly typed languages (e.g., C++, Scala, Go); Rust and Solidity are our primary languages, but prior experience with them is 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
Preferred
Practical experience with Solidity smart contracts, ZK circuits, or core blockchain protocols (preferred but not required)
Benefits
Competitive compensation, equity, and token package
Premium health, dental, and vision coverage
16 weeks paid parental leave
Flexible paid time off plus company‑wide closure weeks
$2 000 equipment stipend & $300 monthly co‑working allowance
Company
Matter Labs
Matter Labs is scaling Ethereum with zero-knowledge proofs to accelerate public blockchain adoption.
Founded in 2018
51-200 employees
Funding
Current Stage
Public CompanyTotal Funding
$308MKey Investors
SygnumAndreessen HorowitzUnion Square Ventures
2024-03-19Initial Coin Offering· $50M
2022-11-16Series C· $200M
2021-11-08Series B· $50M
Leadership Team
Ankur R.
Chief Financial Officer
Zoé Gadsden
Chief Operating Officer
Recent News
2025-12-08
CoinDesk: Bitcoin, Ethereum, Crypto News and Price Data
2025-12-08
2025-12-08
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