Backend Engineer (Blockchain Infrastructure)

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Description

Tags: Web3 Jobs • Cryptocurrency Developer Jobs • Blockchain Infrastructure Jobs • Web3 Backend 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. Every payment Saifuro approves ends onchain, as a USDC transfer or an escrow release on Base or Solana. Your job is to follow it there: watch the chains, record what actually happened, and tie it back to the decision that allowed it. Call it blockchain developer, infrastructure engineer, Go developer or Rust developer if you prefer. What you'd be doing • Settlement. Build and own the service that watches Base and Solana and records every USDC payment and escrow release Saifuro approved, exactly once and only after it's final. • Reconciliation. Match each settled payment to the decision that approved it, so our customers' finance teams can close the month from our records. • Reliability. Keep the records right through RPC provider outages, with nothing missed or counted twice when we switch providers. • Next year, Ethereum, Arbitrum and P

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