Rui Quelhas
Principal Software Developer at Oracle
Figueira da Foz, Portugal
Summary
👤
Senior🎓
Top SchoolRui Quelhas is a Principal Software Developer with 12 years of experience, leading the MySQL X DevAPI connector for Node.js as part of Oracle’s MySQL Middleware and Clients team. He blends deep database protocol expertise with pragmatic Node.js backend engineering, having contributed important fixes to the widely used node-mysql2 driver to improve authentication, error handling, and Docker-based CI testing. Based in Figueira da Foz, Portugal, he has a strong full-stack background across startups and scale-ups—from IoT and mobile to platform APIs—and a formal MSc/BSc in Informatics Engineering from Universidade do Minho. Rui is comfortable operating at the intersection of product and infrastructure: shipping user-facing APIs while tackling low-level client-server compatibility challenges. His work shows a bias for robust, testable systems and an ability to translate server behavior changes into resilient client libraries.
12 years of coding experience
5 years of employment as a software developer
Bachelor's Degree, Informatics Engineering, Bachelor's Degree, Informatics Engineering at Universidade do Minho
Portuguese, English, Spanish
Stackoverflow
1,935reputation
90kreached
82answers
0questions
mysql
top-5%
authentication
top-5%
Github Skills (16)
databases10
nodejs10
javascript10
mysql10
database10
testing9
authentication9
cicd8
dockers7
docker7
mysql-connector6
asynchronous6
xampp6
sql6
relational-databases6
Programming languages (5)
Github contributions (5)
sidorares/node-mysql2
Jan 2021 - Nov 2021
:zap: fast mysqljs/mysql compatible mysql driver for node.js
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:3 reviews, 9 commits, 3 PRs in 9 months
Contributions summary:Rui contributed to the `node-mysql2` repository by addressing multiple issues related to MySQL driver functionality and compatibility. They primarily focused on enhancing the testing framework by decoupling it from specific environment variables and ensuring proper behavior within Docker-based CI environments. The user made significant changes to accommodate new error packets and handle client-side authentication plugin errors to improve connection handling. Furthermore, the user updated tests to accommodate changes in MySQL server behavior, especially with regard to date and integer column length handling.
database-adapterfaunadbmysqlnode-jssql-database
mysql/mysql-connector-nodejs
Nov 2016 - Nov 2022
MySQL Connector Node.JS is a MySQL Connector using the X Protocol, which was introduced with MySQL 5.7.12.
Contributions:374 commits, 1 comment in 6 years 1 month
mysqlmysql-connectorconnectornode-jsjavascript
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