Senior Software Engineer (Rust) (Full Remote, Global)

Job Description

We're seeking a Senior Rust Engineer to design and build the next generation of on-chain risk analysis, monitoring, and solvency protection systems. This role sits at the intersection of quantitative reasoning, protocol mechanics, and real-time market intelligence. While Solana experience is preferred, candidates from other Web3 ecosystems (e.g. Solidity, WASM-based runtimes) are encouraged to apply. Experience in finance, DeFi, or quantitative engineering is also beneficial. Qualifications: 2+ years of Rust experience Strong quantitative skills: comfortable reasoning about complex system behaviors, risk models, and advanced calculations. Startup mindset: bias toward ownership, adaptability, and shipping high-quality work quickly. Nice-To-Haves: 1+ years of hands-on Solana development (Anchor preferred). Web3 fundamentals: solid grasp of core blockchain concepts (accounts, programs, oracles, cross-program invocation, cryptography basics, etc.). Experience with DeFi protocols, risk engines, or on-chain financial primitives. Contributions to open-source Defi or Blockchain projects. Typescript experience, especially around integrating with smart contracts. Role: Build and maintain Rust-based risk analysis systems that detect, model, and respond to market conditions affecting protocol solvency. Apply advanced testing techniques, including fuzzing, property-based testing, and formal verification tools, to validate smart contract behavior in black-box or adversarial environments. Work closely with backend teams to shape the data ingestion pipeline and act as an early consumer of risk, market, and on-chain data. Generate actionable insights and automated alerts based on real-time market events, protocol activity, or systemic risk patterns. Improve backend-adjacent operational workflows, such as token rebalancing, liquidation planning, and treasury/free-funds management. Working with us has many perks, including: competitive salary, equity, token allocation, full benefits, unlimited PTO, and more. marginfi is an equal opportunity employer.