Protocol Engineer
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Requirements
• 3–10 years in protocol, blockchain, or systems engineering depending on level. • Hands-on experience with Solidity or Vyper. • Technical Competencies: • Technical Competencies • Strong understanding of blockchain/EVM protocols. • Familiarity with Yul, Cast tools, Foundry etc is a strong plus. • Proficiency in strongly typed languages (C++, Scala, Go); Rust experience a plus. • Knowledge of Merkle Trees and related data structures. • In-depth knowledge of algorithms, data structures, and computational complexity. • Experience implementing data structures and algorithms from scratch. • Understanding of cryptography, high-load systems, or protocol design a plus. • Core Competencies: • Core Competencies • Ownership mindset with proven track record of delivering projects. • Strong collaboration and communication skills. • Passionate, curious, and motivated to make meaningful contributions. • Fluent written and spoken English. • Work model & pay • Work model & pay • Remote‑first: work wherever you’re most effective; optional travel to team or industry events. Ideally East Coast or European time zone. • Remote‑first • Freedom & ownership culture: no time tracking, minimum bureaucracy—only results matter. • Freedom & ownership culture • For more on how we work, check out our Team Handbook.
Responsibilities
• Design and implement the ZKsync smart contract platform. • Develop system contracts in Solidity/Yul and server-side components for L1 and L2. • Conduct independent research, design, prototype, and document solutions related to blockchain protocol engineering. • Shape the protocol roadmap through collaboration with internal teams and external partners. • Contribute to cross-functional discussions focused on secure and scalable protocol evolution.
Benefits
• Competitive compensation package with equity and token options. • Premium health, dental, and vision coverage included in the benefits. • Offer of 16 weeks paid parental leave for new parents. • Flexible Paid Time Off (PTO) policy allowing additional time off plus company closure weeks annually. • $2000 equipment stipend provided to employees upon joining or changing roles within the organization. • A monthly co-working allowance of $300 for remote work expenses, such as internet and utilities at home office setup.