Tadeu Oliveira
Tadeu Oliveira

Senior Software Engineer

Actively looking · Member since 31 Jul 2026
Message
Location
Niterói, Brazil
Desired salary
Confidential
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Software Engineer with more than 10 years of experience building scalable backend systems, APIs, integrations, and automation solutions. My primary specialization is Node.js, NestJS, TypeScript, and JavaScript.

I build modern web and mobile experiences using React and React Native alongside backend services. Since 2022, I have consistently delivered front-end products serving large audiences, including platforms with millions of monthly visits.

I am particularly interested in legacy-system modernization. I diagnose technical debt, refactor codebases incrementally, and migrate applications toward standalone, maintainable architectures without disrupting production operations.

I have designed CI/CD pipelines and automated workflows that improve delivery speed, reduce production issues, and increase engineering productivity. My experience includes cloud services, containerization, infrastructure automation, and automated testing practices.

I have delivered products used by millions of users, including a community platform for more than 40 million subscribers. I also have experience integrating third-party platforms, building reusable components, and delivering measurable business outcomes through engineering.

Skills

36 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Software Engineer UOL Edtech

Developed a NestJS API that integrated a benefits club page with multiple external platforms, generating more than 15,000 client visits during its first three months. Built React and TypeScript campaign pages and reusable components that supported 2 million monthly visits and more than 10,000 leads.

Planned and executed a HubSpot code and asset migration across accounts, saving more than BRL 1 million annually. Led legacy CRM migration into standalone applications with CI/CD pipelines and maintained an internal course-certification generator that avoided third-party costs of approximately BRL 1 million.

Software Engineer Passei Direto

Developed a community section using Node.js and Vue.js that enabled interactions among more than 40 million subscribed users. Delivered a React Native mobile version of the feature for the same user base.

Maintained the producers platform, enabling users to post, organize, and manage their materials. Contributed to product functionality across backend and front-end systems.

Software Engineer PLANIUM

Architected and implemented a JavaScript library that automated parts of the development workflow required to deliver the company platform to clients. Developed and delivered customizations for customers using the white-label platform.

Maintained and enhanced the platform core, consisting of an AngularJS front end and PHP backend. Implemented Cypress end-to-end tests to help ensure platform stability following releases and bug fixes.

Software Engineer ABRACOACHING

Designed and developed a DISC personality test that helped students discover their behavioral profiles. Created a PHP solution for generating large volumes of PDF certificates for students.

Maintained WordPress pages to support the company's marketing and lead-attraction efforts for prospective coaching students.

Software Engineer EGD System

Developed a C# script to populate the database with XLSX data from nearly one thousand students. Improved the efficiency of importing and processing student records.

Maintained the PHP platform by resolving defects and implementing new features to support ongoing product needs.

Education

Learning history

Universidade Federal Fluminense

Bachelor, Computer Science

Bachelor's degree in Computer Science.

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