Solana Jobs

Description: I need a simple backend to support a mobile app MVP. Details: Built REST API endpoints (create & fetch data) Designed PostgreSQL database schema Implemented authentication-ready structure -Deployed backend to cloud server Tech Stack Used: Node.js + Express / NestJS PostgreSQL Docker REST API Delivery Time: 2 hours Budget: $30

I want a small, self-contained solution that proves ownership of a Solana wallet by signing a personalised text message. The message must concatenate my chosen username and a unique transaction ID—no images or JSON, just plain text. The wallet owner’s private key has to be used for the signature so anyone can later validate it with the corresponding public key/uniquie text. This is a quick work; need a trustable programmer who can handle the wallet information and help add the required text.

I have a Python-based Solana trading bot that still calls the legacy Jupiter swap and quote endpoints. Everything else—routing logic, signal generation, scheduling—works fine, so I only need the swap layer migrated to the new Jupiter Ultra API. What you’ll actually do • Replace the legacy quote and swap requests with the Ultra endpoints, following the latest request/response schema. • Adjust any transaction-building or signing code affected by the new flow (Serum swap accounts, compute budget settings, priority fees, etc.). • Run end-to-end tests on mainnet to confirm the bot executes swaps consistently and returns accurate fill information. • Update any helper functions, constants, or TypeScript type stubs that touch the Jupiter client librar...

Ho già completato gran parte del mio sniper bot che opera sia su sia su Raydium e integra jito bundle insieme a yellowstone. Ora voglio concentrarmi sul cuore del flusso di trading: il modulo di sell (swap). Priorità principale • Verificare e ottimizzare la logica di sell (swap) assicurando che: – la velocità di esecuzione rimanga la più alta possibile, – lo slippage sia mantenuto entro soglie configurabili, – il prezzo di mercato venga rilevato in tempo reale prima della conferma della transazione. Attività secondarie • Controllo dei filtri di selezione dei token e della routine di buy per garantire coerenza con le modifiche al modulo di sell. • Test end-to-end su entrambe le piattaforme, inclusi scenari di alt...