Senior Rust Software Engineer Industry: Blockchain / Web3 / Crypto / Finance Location: San Francisco (On-Site / Hybrid) Salary: $150-250,000 Bonus X4 Engineering is excited to partner with a leading organization in Blockchain, focused on developing applications with zero-knowledge proofs. The company is seeking experienced Senior Software Engineers who are proficient in Rust and skilled in developing distributed systems, including areas such as consensus logic, memory-mapped databases, networking stacks, and synchronization logic for optimal performance. In this role, youll maintain and optimize low-level cryptographic logic, from signature schemes to zero-knowledge proof systems. Additionally, youll collaborate with product teams to integrate protocols, creating user-friendly interfaces and APIs that simplify complex functionalities. Key Requirements: Bachelors or Masters degree in a related field, Engineering, or a similar area. 5 years of software engineering experience. At least 2 years of Rust development experience. Strong foundation in blockchain concepts and ideally, experience contributing to a blockchain projects. Low-level system programming and/or distributed systems design experience. A strong foundation in blockchain concepts and ideally, experience contributing to a blockchain project. Developed and refined smart contracts on Solana, with the flexibility to extend into others. The role requires at least 3 days per week in the SF (Bay Area) office. If youre interested in the role please apply via the job advert or get in touch with a.koiviox4engineering .