Edgar Barrantes Brais

Edgar Barrantes Brais

Senior Full-Stack Engineer (TypeScript, Node.js, React). Developer tooling and AI workflows. ZK background.

Open to remote roles in Europe.

I'm a software engineer with about ten years of experience, mostly on remote teams. My core is TypeScript across the stack (Node.js/Nest, React/Next.js, PostgreSQL), and I tend to end up on the parts other developers depend on: developer tooling, API infrastructure, integrations and CI.

I spent four years at Nethermind on zero-knowledge ecosystems (Starknet and Aztec, Cairo and Noir). Before that I worked at WalletConnect, First Factory and Accenture.

These days I build with AI in the loop and self-host most of what I use. I am open to new roles.

Selected projects

All projects

  • homelab

    Guided installer and CLI that provision a Linux server with a dozen self-hosted services as Docker Compose stacks. Private by default (Tailscale, one wildcard TLS certificate, no open ports), nightly backups, rebuild from backup tested end to end in a VM.

    docker, linux, self-hosted

  • open-webui-kiwix

    Open WebUI tool that lets a local AI search and cite an offline Kiwix library.

    python, ai, offline

  • Starknet Remix Plugin

    A Remix IDE plugin for Starknet: write, compile, deploy and interact with Cairo contracts from the browser. Built at Nethermind.

    starknet, cairo, developer-tools

  • 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.

    swarm, typescript, docker

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