Open to opportunities

Tadeu Oliveira

@tadeuoliveira

Message

I build scalable Node.js APIs, integrations, and modernized backend systems.

Brazil

Message

What I'm looking for

I'm looking to build scalable backend systems, APIs, and integrations while modernizing legacy codebases incrementally without disrupting production.

I've built backend products at UOL Edtech and Passei Direto, including a NestJS benefits-club API that drove 15,000+ client visits in three months and a community feature serving 40M+ subscribed users.

I modernize legacy systems incrementally, leading CRM migrations into standalone TypeScript and NestJS applications with CI/CD pipelines that improved delivery speed and developer productivity.

I've also automated HubSpot migrations, maintained a certification generator that saved 1M+ BRL, and built integrations and testing workflows that reduce manual work and production risk.

Experience

Work history, roles, and key accomplishments

Software Engineer

UOL Edtech

Jun 2023 - Jun 2026 (3 years)

Developed a NestJS API integrating benefits club page with external platforms, driving 15,000+ client visits in first three months. Led HubSpot migration and legacy CRM modernization, saving 1M+ BRL annually.

NestJS TypeScript REST APIs CI CD HubSpot AWS Docker MongoDB MySQL

Software Engineer

Passei Direto

Feb 2022 - Jun 2023 (1 year 4 months)

Developed a community section with Node.js and Vue.js, enabling interaction among 40M+ subscribed users. Developed mobile version using React Native and maintained producers' platform.

Node.Js Development Vue.Js React Native JavaScript REST APIs

Software Engineer

PLANIUM

Nov 2019 - Nov 2021 (2 years)

Architected and implemented a JavaScript library automating development processes. Delivered customizations for white-label platform and implemented e2e tests with Cypress.

JavaScript AngularJS PHP Cypress E2E Testing