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

i craft scalable backend systems with elixir, blending abstraction and pragmatism to solve real-world problems. my career has centered on fintech solutions, where ideas like pix, drex, and open finance inspire me to build reliable and accessible financial tools.

beyond work, i'm drawn to the elegance of category theory and abstract algebra, finding joy in understanding the structures that underpin computation. i'm deeply connected to the elixir 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.

def zoey do
  %{
    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.

peri github.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, including gotrue-ex, storage-ex, and postgrest-ex.

plataforma-pescarte pescarte.org.br github.com/peapescarte/pescarte-plataforma

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

nexus github.com/zoedsoupe/nexus

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

exlings github.com/zoedsoupe/exlings

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

estrutura_de_dados github.com/zoedsoupe/estrutura_de_dados

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