Edgar Barrantes Brais
Software engineer in Costa Rica, working in zero-knowledge. I spent four years at Nethermind writing Cairo and Noir across Starknet, Aztec and other proving stacks. On several of those projects I designed and deployed the infrastructure as well, and ran it in production.
Before that, seven years of full-stack TypeScript at WalletConnect, Accenture, First Factory and as a freelancer.
I am open to new roles.
Selected projects
All projectsStarknet Remix Plugin
A Remix IDE plugin for Starknet: write, compile, deploy and interact with Cairo contracts from the browser. Built, deployed and maintained at Nethermind.
Swarm uploader of Wikipedia pages
Winner of the Swarm and Fair Data Society hackathon bounty: a docker-compose that sets up a Swarm node, an Express API and a Next.js app to process zim files and upload them to the Swarm network.
Starkfees
See how much you have spent on gas on Starknet.
Field matrix library
A small Rust library for matrices over finite fields.
Recent notes
All notesWhen you have an ethernet connection and need to share it with your phone or other devices.
Quick trick for a personal VPN using an SSH SOCKS5 proxy.
Recovering a MetaMask extension that only shows a blank screen in Firefox on Linux.
The legacy-install-failure error on fastecdsa needs python-dev and libgmp.