Zoey de Souza Pessanha

Zoey de Souza Pessanha

Senior Software Engineer | OSS Maintainer | Elixir em Foco Co-Host

Location: Campos dos Goytacazes, RJ, Brazil

Summary

Senior Software Engineer specializing in high-scale financial systems and distributed architectures using functional programming. Extensive experience with Brazilian payment methods (credit cards, PIX) and building resilient, fault-tolerant fintech platforms. Active open-source maintainer in the Elixir ecosystem, contributing developer tools and protocol implementations. Co-host of Brazil's first Elixir podcast, advocating for functional programming and community knowledge sharing.

Open Source Contributions

Building tools and libraries to empower the Elixir ecosystem and functional programming community

anubis-mcp

44 stars · 195 commits

High-performance Model Context Protocol SDK in Elixir. Actively maintained fork of hermes-mcp after CloudWalk discontinued maintenance. Comprehensive client/server implementations with multiple transport mechanisms (HTTP, SSE, WebSocket) and OTP-based architecture.

Elixir MCP OTP Active Maintenance

supabase-ex

Complete Supabase SDK

Complete Supabase SDK for Elixir including storage-ex (Storage client), gotrue-ex (authentication), and postgrest-ex (database client). Enables full Supabase integration in Elixir applications with type-safe interfaces.

Elixir Supabase Type-Safe

peri

Composable Validation

Composable validation library with schema-based validation, type safety, and comprehensive error handling. Built for production Elixir applications.

Elixir Validation Production Ready

exlings

Interactive Learning

Interactive learning tool for Elixir inspired by rustlings. Self-contained exercises teaching Elixir through practice, helping beginners learn the language.

Elixir Education Beginner Friendly

Additional projects include proto_rune (AT Protocol/Bluesky SDK), nexus (CLI builder), lucide_icons, and various other Elixir developer tools.

View Full Portfolio on GitHub

Technical Skills

Primary Languages

Elixir Rust Zig TypeScript

Specializations

High-Scale Financial Systems Brazilian Payment Methods Distributed Systems MCP Architecture

Focus Areas

Functional Programming Fault-Tolerant Architectures Category Theory Protocol Design

Community Engagement

Co-Host | Elixir em Foco

Brazil's first podcast dedicated to the Elixir community. Explores Elixir applications across web development, embedded systems, machine learning, and more. Features discussions with professionals from complementary ecosystems (Erlang, Gleam, Clojure). Supported by the Erlang Ecosystem Foundation.

Elixir Podcast EEF Supported Community Engagement

Professional Experience

For detailed professional experience including roles at Dashbit, CloudWalk, Cumbuca, Nubank, and more, please visit my LinkedIn profile.

View LinkedIn Profile

Education

Bachelor of Applied Science - Computer Science

Descomplica Faculdade Digital | April 2024 - October 2026

Currently pursuing

Bachelor's Degree - Computer Science

UENF - Universidade Estadual do Norte Fluminense | March 2019 - June 2022

Completed

Technical Degree - Information Technology

Instituto Federal de Educação, Ciência e Tecnologia Fluminense | March 2018 - March 2020

Completed

Languages

Portuguese

Native

English

Full Professional Proficiency

Certifications

  • ● CS50x Certificate (Harvard's Introduction to Computer Science)
  • ● JavaScript (Basic) - HackerRank
  • ● FRONTIN Elas Programam 2023

Let's Connect

I'm always open to interesting conversations and collaboration opportunities

zoey.spessanha@zeetech.io