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0xb0b1/README.md
Backend Engineer — Go + Clojure / Distributed Systems / I write about how systems break

Blog

LinkedIn X Email

Hey, I'm Paulo

Backend Software Engineer at R10 Score · Cuiabá, Mato Grosso — Brazil 🇧🇷

I build resilient, data-heavy backends — mostly in Go, with a soft spot for Clojure and immutable data. Studying application security taught me more about architecture than any framework did: you design better once you understand how systems break.

  • 🧩 Event Sourcing / CQRS, message brokers, idempotency, graceful degradation
  • 🐿️ Go for services; Clojure + Datomic when the domain is data-shaped
  • 🔭 Currently deep in: Python → Go strangler-fig migrations, observability that actually traces
  • ✍️ Writing 65+ posts at paulo-vicente.fly.dev — in 🇬🇧 and 🇧🇷

Featured Work

Project What it is
eventsource Go Event Sourcing + CQRS, implemented properly — banking domain, append-only log, projections
taskqueue Go Postgres Distributed task queue: scheduling, exponential-backoff retries, bounded worker pools
gowm Go A tiling X11 window manager in pure Go, no C bindings — xmonad-inspired
wynad Haskell The Wayland sequel: an xmonad-flavored compositor on wlroots
blog Go This blog is a Go binary — html/template, markdown content, i18n, shipped on Fly.io
dotfiles Lua Haskell XMonad + EWW bar, Catppuccin Frappé, Neovim — the whole desk

Behind closed repos: a real-time notification service in Go (gRPC + WebSocket delivery, Redis-backed deduplication, stateless horizontal scaling) — the migration story is written up here — plus subscription and data-ingestion services in Go + Terraform, and an MCP server bridging Azure DevOps into my editor.

From the Blog

Notes from production, not tutorials.

→ read everything · também em português

Toolbox

Languages

Languages

Data & Infra

Infra

Daily Drivers

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GitHub profile summary Contribution streak

"Make it correct, make it observable, then make it fast."



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  1. dotfiles dotfiles Public

    My personal XMonad setup with EWW bar, Catppuccin Frappe theme, and various tools for a complete desktop environment.

    Lua 1

  2. eventsource eventsource Public

    A practical implementation of Event Sourcing and CQRS patterns in Go, demonstrated through a banking domain.

    Go

  3. blog blog Public

    This blog is where I share my thoughts, experiences, and learnings about software development, programming languages, and various technical topics that interest me.

    CSS

  4. taskqueue taskqueue Public

    A distributed task queue written in Go with PostgreSQL backend, supporting job scheduling, retries with exponential backoff, and worker pools.

    Go

  5. gowm gowm Public

    A minimal, pure Go tiling window manager for X11, inspired by xmonad.

    Go