Smart Contract Engineer (Rust, Solana)

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Tags: Web3 Jobs • Cryptocurrency Developer Jobs • Cryptocurrency Smart Contract Jobs • Cryptocurrency Rust Jobs • Blockchain Remote Jobs • Blockchain Full Time Jobs Saifuro checks payments that AI agents try to make. An agent asks to spend, we compare the request with a mandate a human approved earlier, and the answer comes back signed so the receiving side can verify it. There's escrow on Base and Solana for trades between agents, and settlement is in USDC, onchain. We never hold customer funds. The docs are public at docs.saifuro.com, and the people who use them are developers building agents and the teams selling APIs to those agents. The escrow is the one place where our code holds other people's money. USDC goes in, waits until a signed verdict says the deal is done, and comes out to the seller or back to the buyer, with no path in which Saifuro can move it. On Solana that's an Anchor program, and it would be yours: the program, the check on our signatures, the audits and the releases. Call it Solana developer, smart contract developer or Rust developer if you prefer. It's Rust. What you'd be doing • The escrow program. USDC held in a vault the program owns, released only against a signed verdict, refunded without us when a deal falls through. Design, code and tests are yours. • The verifier. The program checks our signed verdict before anything moves. You own that check onchain. • Audits and releases. An external audit before every mainnet upgrade, t

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