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Hi there 👋

I'm a product-minded Backend Software Engineer with a keen interest in Developer Experience.

I've worked mostly in startups and fast-paced projects, so I'm used to wearing many hats and learning new things quickly. I prioritize understanding the business and the users' needs so that I can build the best solution possible. I specially like working with decisions driven by data using Hypothesis-Driven Development.

  • 🔭 I’m currently working on Double-Entry Bookkeeping Accounting systems in Elixir with Event Sourcing.
  • 🌱 I’m currently learning Kafka.
  • 🤔 I’m looking for help on how to scale Double-Entry Bookkeeping systems, since they are often so reliant on sequencial operations per ledger.
  • 💬 Ask me about Elixir, JavaScript, Node.js, HTTP Servers, middleware stack applications, Double-Entry Bookeeping, Financial Accounting, DevOps, CI/CD, Event Sourcing, CQRS, etc.
  • 📫 You can reach me on 𝕏 Twitter: @rwillians_.
  • 📑 You can find my publishings on dev.to: @rwillians.

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Rafael Willians's Projects

axiosist icon axiosist

Axios based supertest: convert node.js request handler to axios adapter, used for node.js server unit test.

bookk icon bookk

Bookk is a simple library that provides building blocks for manipulating ledgers using double-entry bookkeeping

deep-cast icon deep-cast

Casts a given set o properties from a given object or array using a given callback.

express-rescue icon express-rescue

Sugar code layer for async middlewares and error handers, rewarding you with cleaner and more readable code.

fykit icon fykit

Home of Appify and its peers.

logflare icon logflare

Never get surprised by a logging bill again. Centralized structured logging for Cloudflare, Vercel, Elixir and Javascript.

money icon money

Elixir library for working with Money safer, easier, and fun... Is an interpretation of the Fowler's Money pattern in fun.prog.

sms-proxy icon sms-proxy

Use Twilio to setup a mobile phone number anywhere in the world and redirect all messages from that phone to yours. This is just me playing around, don't even think about using this in production.

stingray icon stingray

Dot notation reader/writer for multidimensional arrays in PHP.

sugar-env.js icon sugar-env.js

Sugar code to access environment variables with default values

tapex icon tapex

TAP (Test Anything Protocol) formatter for Elixir's ExUnit

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