LI.FI — Solver

LI.FI is cross-chain infrastructure: it routes swaps and bridging across dozens of chains so an app can move value between them through a single integration. The Solver is the execution side of that. A user says where they want to end up (a certain asset on a certain chain), and the Solver sources the liquidity and lands the transactions that settle it.

I’m on the Solver team, and my work is making that execution reliable in production:

  • Took Solver from an early draft to production and kept it stable, along with the Wallet service it uses to sign and send transactions.
  • Built cross-chain inventory rebalancing from scratch, so liquidity sits where intents need it.
  • Owned deployment end to end (Docker image, CI/CD, Terraform) and built monitoring from scratch with Prometheus and Grafana.
  • Scoped a Wallet overhaul to remove a double-spending risk, moving to EOA-based execution with predictable nonce management. Another team picked it up and shipped it.

It has crossed $1M+ in transferred value in production.