I Sniped a Solana Token in 400ms — Here's the Full Tech Stack When Solana's latest meme token dropped last week, I executed a snipe in just 400ms from block inclusion to successful arbitrage. Here's the technical deep-dive into how I built this sniper bot using Jito MEV bundles, Jupiter routing, and Helius RPC—with real code, benchmarks, and hard-earned lessons. The Challenge: Solana's 400ms Window Solana's 400ms block times mean traditional Ethereum-style MEV strategies won't work. You need: Sub-100ms RPC latency (Helius) Pre-constructed bundles (Jito) Optimal swap routing (Jupiter) Local transaction simulation (no time for RPC roundtrips) 1. Jito MEV Bundles: Pre-Execution Arbitrage Jito bundles let you submit multiple transactions atomically. My sniper watches for new token mints (via Helius webhooks) and pre-constructs two transactions: # Bundle 1: Buy the new token buy_tx = Transaction ().…