Fixed Price
Experience
5 years exp.
Posted
8/28/2026
Most teams get the first transaction working in an afternoon and then spend a month on everything after it — the RPC that times out, the transaction that lands twice, the balance that disagrees with the chain. That second month is what I do.
I work in TypeScript and Node with web3.js, on your infrastructure and your RPC. Everything ships as a PR into your repo with tests on the paths that actually break - expired blockhash, duplicate send, lost response. No SDK of mine to depend on afterwards.
Devnet first, always. We go to mainnet when the tests say we should, not when the deadline does.
k1ngp0ng
Payment Expectations
Experience
5 years exp.
Posted
8/28/2026
Most teams get the first transaction working in an afternoon and then spend a month on everything after it — the RPC that times out, the transaction that lands twice, the balance that disagrees with the chain. That second month is what I do.
I work in TypeScript and Node with web3.js, on your infrastructure and your RPC. Everything ships as a PR into your repo with tests on the paths that actually break - expired blockhash, duplicate send, lost response. No SDK of mine to depend on afterwards.
Devnet first, always. We go to mainnet when the tests say we should, not when the deadline does.