I Sniped a Solana Token in 400ms — Here's the Full Tech Stack

When Solana's new token $XYZ launched last week, I managed to snipe it in just 400ms after liquidity was added. This wasn't luck — it was a carefully engineered system combining MEV strategies, optimized RPC calls, and precise transaction construction. Here's exactly how I built it.

The Core Components

Jito MEV Bundles (for priority execution)

Jupiter Swap API (for optimal routing)

Helius RPC (for low-latency access)

Custom Rust Validator (for mempool monitoring)

Jito MEV Bundles: Beating the Priority Fee Race

The key to winning snipes is avoiding the priority fee auction. Jito bundles let you pay validators directly for front-of-line placement. Here's how I constructed my bundle:

use jito_bundle :: Bundle ; use solana_sdk :: transaction :: VersionedTransaction ;

let bundle = Bundle :: new ( vec!…