Rafael de Carvalho

Hi, I am Rafael. I am a senior backend engineer with around 6 years of experience. I work mostly with Node.js and TypeScript on AWS. Today I work at Chaves na Mão and I am the only engineer in three big rebuilds, and I report to the CTO. One of them is the analytics platform. The queries was too slow and always gave timeout, so I rewrote it and now it takes around 250 ms. We have about 2 billion events per month. I also changed the payments integration: before it used files and FTP with the banks, now it uses the bank APIs directly, and I made the reconciliation automatic for around R$10M per month. The third one is moving a old PHP system with 175 thousand lines to a NestJS monorepo. Before this I worked with recurring billing gateways with around R$18,5M per month, and I grew from intern to specialist in four years. I like to work on the hard parts of the system and make them boring and safe. I already work remote and all my Upwork contracts was in english. I am looking for a good engineering team where I can keep working with backend in scale.