a travesty 🏳️‍⚧️ software engineer, open-source maintainer, and passionate functional programming enthusiast.

i craft scalable backend systems withelixir, blending abstraction and pragmatism to solve real-world problems. my career has centered onfintech solutions, where ideas likepix,drex, andopen finance inspire me to build reliable and accessible financial tools.

beyond work, i'm drawn to the elegance ofcategory theory andabstract algebra, finding joy in understanding the structures that underpin computation. i'm deeply connected to theelixir community, contributing open-source tools and creating spaces for learning, sharing, and collaboration.

my projects reflect what i value: developer tooling, interactive learning platforms, and systems built with clarity and intention.

minimalism, abstraction, and community guide everything i do.

defzoeydo%{name:"zoey de souza pessanha",pronouns:~w(she they),city:"campos dos goytacazes, rj, br",age:23,interests:~w(functionalprogramming open_source                  category_theory numetal goth_metal                  goth trans_community),systems:~w(nixos helix macos),langs:~w(elixir haskell clojure),other:~w(community_building math puns)}end

• led development of elixir-based credit card processing systems for high-availability environments.
• optimized ci/cd pipelines to streamline deployments.
• mentored junior developers and improved architecture for scalability.

• contributed to new fintech features, improving user engagement and system performance.
• implemented scalable microservices architecture for better maintainability.

• co-host of brazil's first elixir podcast, fostering knowledge exchange and inclusivity.
• organized workshops and webinars promoting functional programming.
• https://elixiremfoco.com

• developed a social platform for artisanal fishermen using elixir and phoenix liveview.
• led open-source initiatives supporting local cooperatives.
• https://pescarte.org.br

• designed microservices architecture to improve scalability and reliability.
• implemented fault-tolerant systems for high-volume payment processing.

• built customer service applications with enhanced ux/ui and reduced latency.
• developed responsive frontend interfaces and reliable web apis.

perigithub.com/zoedsoupe/peri

lightweight data validation library for elixir without ecto, designed for pure schemas.

supabase maintainer (elixir)supabase-community

main maintainer for elixir libraries supporting supabase, includinggotrue-ex,storage-ex, andpostgrest-ex.

plataforma-pescartepescarte.org.brgithub.com/peapescarte/pescarte-plataforma

a comprehensive web platform with both private and public features, including a graphql api, designed to digitize the PEA Pescarte.

nexusgithub.com/zoedsoupe/nexus

a declarative framework to create CLIs and build modern TUIs with elixir.

exlingsgithub.com/zoedsoupe/exlings

an interactive CLI tool to learn elixir through exercises, inspired by rustlings.

estrutura_de_dadosgithub.com/zoedsoupe/estrutura_de_dados

a collection of data structures and algorithms implemented in haskell. currently only in portuguese.

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1. periperiPublic

   Elixir library for declarative data description and validation

   Elixir 109 5

2. supabase-community/supabase-exsupabase-community/supabase-exPublic

   A complete Toolkit to interact with Supabase APIs from Elixir

   Elixir 134 6

3. proto_runeproto_runePublic

   ATProtocol and Bluesky framework for Elixir, make bots, labelers, app views and more (WIP)

   Elixir 23 1

4. nexusnexusPublic

   CLI framework for Elixir, with magic!

   Elixir 34 1

5. mentormentorPublic

   LLM strutured outputs done in a composable and extensible way for elixir

   Elixir 15

6. cloudwalk/hermes-mcpcloudwalk/hermes-mcpPublic

   Elixir Model Context Protocol (MCP) SDK

   Elixir 57 3