Andrey Nering

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About Me ​

Hi, I'm Andrey, a Senior Software Engineer from Joinville, Santa Catarina, Brazil. 🇧🇷

I'm a passionate for Open Source and a generalist. I like to learn and work with many different technologies, tools, languages and databases.

I'm currently working for Charm hacking all kind of developer tools, with a strong focus on TUIs and CLIs, mostly using Go.

When it comes to web dev, I have a strong focus on back-end development, in particular with Ruby on Rails. But I also enjoy working with front-end technologies when needed, and have experience with React and Vue.

Open Source ​

My first contact with Open Source dev was by contributing to the Ruby on Rails, in particular to the Rails Guides. Since then, I contributed to many different projects and created Task, which I have been maintaining for 8+ years.

Task (Since 2017) ​

A simple automation tool that can be used to automate boring tasks related to development, testing, deployment and more. ⭐ 13k stars on GitHub.

testfixtures (Since 2016) ​

A Go package that allows one to write automated tests that connects to a real relational (SQL) database. Useful for writting integration tests! This is actually of port of to Go of a feature that is built-in in Ruby on Rails. ⭐ 1.1k stars on GitHub.

Work ​

Charm (2025-Current) ​

The Charm team is small but extremely talented. The opportunity to learn all kind of new things here is huge!

Charm maintains a complete ecosystem of developer tools to power terminal emulators, including Bubble Tea, which is a TUI framework. Think about it as being a "React for the terminal".

Charm projects are mostly Open Source, so you can follow my work publicly on GitHub.

JobScore (2018-2024) ​

JobScore is an applicant tracking system built as a "classic" monolith Rails application, using PostgreSQL as its database system and React as the shiny front-end framework of choice. 7 years is a lot, so I had the chance to help on many different projects.

Highlights:

  • I led the upgrade Rails in the big monolith from 4.2 to its latest version (7.1 at the time). I was also the main person resposible to review Dependabot PRs for back-end (Ruby, Rails) dependencies.
  • I helped to improve the billing system, including introducing annual plans.
  • I helped to overhaul the "platform integrations" infrastructure, which is the Google Workspace and Microsoft 365 integrations with JobScore including calendar integration, email synchronization, SSO, and more.
  • I also worked some partner integrations, like with Indeed (Gold Partner), LinkedIn (Gold Partner) and others.
  • I helped to design and build the recent "v2" public API, which also includes webhooks and an integration with Zapier.
  • I participated in the process to convert many pages from the 1990-like "HTML generated in back-end + jQuery" style to a brand new and modern SPA built in React and using a proper design system and multiple themes.
  • I used OpenSearch (a fork of Elasticsearch) to not only improve performance of searches in general, but also in a project to overhaul the candidate scoring and recommendations system, which is now powered by OpenSearch capabilities.

Sardo (2013-2017) ​

My first job, in this tiny and local consultancy company (now closed) I had the opportunity to learn and work with Ruby on Rails, Go and other tools, and got a great experience working with many different database systems (mostly PostgreSQL and Microsoft SQL Server).

Education ​

UDESC (2012-2015) ​

Bachelor in Information Systems in the University of State of Santa Catarina (UDESC) in São Bento do Sul, Santa Catarina, Brazil.