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Searchers, validators, and the mempool as a market
On-chain infrastructure for sophisticated players: the full MEV stack (searchers, builders, validators), smart contract deployment pipelines, cross-chain settlement, Solana Firedancer internals, and Jito bundle submission.
MEV is not a bug in DeFi — it is the market microstructure of blockchains. Understanding the full stack from mempool to validator block construction is the prerequisite for any institutional on-chain strategy. These five posts map the complete extraction and infrastructure landscape.
A systems engineer's tour of the full MEV supply chain — searchers, bundles, builder APIs, relays, and what Flashbots PBS actually changed about on-chain value extraction.
How I cut smart contract deployment time from 2 hours to 15 minutes at Upside — Foundry scripts, CI/CD patterns, multi-chain verification, and gas regression gates.
A systems-level breakdown of cross-chain capital movement — bridge trust models, finality windows, HTLC mechanics, and the operational controls that prevent catastrophic loss.
Jump Trading built Firedancer from scratch because the existing Solana validator was the bottleneck. Here is what that tells you about the performance requirements and what it means for trading infrastructure.
Solana MEV in 2026 is where Ethereum MEV was in 2021 — rapidly maturing and profitable for infrastructure-savvy participants. Here is how the full stack fits together.