Starkflow is seeking a Rust Proof Systems Integration Engineer with proven experience working on backend systems and Zero Knowledge technologies. You will be responsible for integrating proof systems (zkVMs, Rollups, Bridges, etc.) in Rust, enhancing existing integrations, and writing clean, efficient, and testable Rust code. This role requires 5+ years of experience with backend systems technologies (C#, C++, Go, Java) and 1-2 years of hands-on experience in Rust with exposure to Zero Knowledge technologies in the blockchain space.