Senior-level Solana/Rust Engineer — non-custodial payouts, anti-double-claim, reliability

I’m a Solana/Rust engineer building non-custodial, verifiable, abuse-resistant systems.

Focus areas:

Non-custodial payout / grant distribution flows (users sign with their own wallets)

Anti-double-claim with on-chain receipts + deterministic server-side checks

Idempotency, safe retries, and audit-friendly logs

Work style (async-first):

I prefer communication via GitHub issues/PRs and written updates

I can provide clear PR descriptions + weekly status reports

Calls are minimal (optional short kickoff only if needed)

Availability: 10–12h/week (Mon + Wed/Thu JST)...