I'm Caio Cesar Guimarães de Queiroz, a Senior Software Engineer focused on Platform Engineering & Developer Experience. I specialize in building end-to-end, scalable backend and full-stack systems using JavaScript/TypeScript, Node.js, React, and AWS. I enjoy designing cloud-native, event-driven architectures and leading AI-driven automation to improve performance and reliability. Over the past decade, I’ve guided technical direction, mentored engineers, and built internal tooling like developer portals and observability dashboards. I thrive on clean architecture, software quality, and improving Developer Experience through DevOps practices and data-driven insights.

Caio Cesar Guimarães de Queiroz

I'm Caio Cesar Guimarães de Queiroz, a Senior Software Engineer focused on Platform Engineering & Developer Experience. I specialize in building end-to-end, scalable backend and full-stack systems using JavaScript/TypeScript, Node.js, React, and AWS. I enjoy designing cloud-native, event-driven architectures and leading AI-driven automation to improve performance and reliability. Over the past decade, I’ve guided technical direction, mentored engineers, and built internal tooling like developer portals and observability dashboards. I thrive on clean architecture, software quality, and improving Developer Experience through DevOps practices and data-driven insights.

Available to hire

I’m Caio Cesar Guimarães de Queiroz, a Senior Software Engineer focused on Platform Engineering & Developer Experience. I specialize in building end-to-end, scalable backend and full-stack systems using JavaScript/TypeScript, Node.js, React, and AWS. I enjoy designing cloud-native, event-driven architectures and leading AI-driven automation to improve performance and reliability.

Over the past decade, I’ve guided technical direction, mentored engineers, and built internal tooling like developer portals and observability dashboards. I thrive on clean architecture, software quality, and improving Developer Experience through DevOps practices and data-driven insights.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Advanced
Portuguese
Fluent

Work Experience

Senior Software Engineer (Platform Engineering) at QuintoAndar
August 1, 2021 - November 5, 2025
Led end-to-end platform solutions using TypeScript, Golang, Python, and Backstage.io; designed a documentation indexing pipeline connecting GitHub Markdown, Google Docs, and an internal Q&A database with an AI agent using RAG, achieving +30% documentation satisfaction over 2 years. Built an Internal Developer Portal used by 500+ engineers, integrating GitHub, CI/CD, Observability, and Documentation. Implemented an engineering metrics platform with DevLake, created custom metrics, and visualized performance with Grafana dashboards. Automated quarterly Developer Experience surveys and contributed to open-source Backstage plugins and Apache DevLake.
Senior Software Engineer (Remote Part-Time Freelancer) at BossaBox
June 1, 2025 - June 1, 2025
Delivered scalable, distributed backend microservices using TypeScript, Node.js, NestJS; built frontend apps with React/Next.js; implemented event-driven architectures with GCP Pub/Sub. Worked on fintech credit operations (Grafeno) and digital learning platforms (Score/Qultur e.Rocks), applying SOLID, OOP, and design patterns to deliver maintainable code.
Analyst to Specialist Software Engineer at Accenture
July 1, 2021 - July 1, 2021
Led KPI management platform development; defined software architecture, backend patterns (Backend for Frontend, SOLID), data modeling, and client communications. Contributed to frontend with React. Developed REST APIs using Node.js and ExpressJS; integrated with BigData ingestion and client API Gateways for authentication/authorization.
Software Engineer at Norsul Engenharia e Consultoria
November 1, 2018 - November 1, 2018
Developed full-stack and IoT solutions for 6 energy R&D projects using C (ARM MCUs), PHP (CodeIgniter), and Java (Android). Led technical delivery of an Energy Efficiency Social Project, delivering mobile + API solution for community energy support.
Junior Software Engineer at Softwell Solutions
May 1, 2016 - May 1, 2016
Developed enterprise systems on Maker low-code platform, delivering custom features for multiple clients. Created internal tooling to accelerate delivery of enterprise apps.
Senior Software Engineer (Remote, Part-Time Freelancer) at BossaBox
September 1, 2020 - July 31, 2023
Full-stack developer delivering scalable distributed systems across fintech, edtech, and energy domains. Built backend microservices using TypeScript, Node.js, NestJS, and event-driven architectures with GCP Pub/Sub, and frontend with React and Next.js. Projects included a fintech billing and pricing platform (Grafone) and a digital learning platform (Skore/Qultur e.Rocks) with event-driven notifications, gamification, and content management using GraphQL and REST. Applied SOLID principles and design patterns to maintainable codebases.
Analyst to Specialist Software Engineer at Accenture
June 1, 2019 - July 31, 2021
Node.js backend developer responsible for KPI management platform: architecture definitions, data modeling, backend design (Node.js/Express), REST APIs, data mass ingestion, and integration with clients' API Gateways for authentication/authorization; contributed to frontend development with React.
Software Engineer at Norsul Engenharia e Consultoria
June 1, 2016 - November 30, 2018
Developed full-stack and IoT solutions for six R&D energy projects using C (ARM microcontrollers), PHP (CodeIgniter), and Java; led technical delivery of an Energy Efficiency Social Project, delivering mobile + API solution for community energy support.
Junior Software Engineer at Softwell Solutions
April 1, 2013 - May 31, 2016
Developed enterprise systems on Maker low-code platform, delivering custom features for multiple clients and built internal tooling to accelerate delivery.

Education

Bachelor of Computer Engineering at UFBA
January 1, 2010 - January 1, 2017
Computer and Electronic Systems Engineering at Glasgow Caledonian University
January 1, 2014 - January 1, 2015
GoStack Bootcamp (JavaScript Stack: NodeJS, TypeScript, ReactJS e React Native) at Rocketseat
January 1, 2020 - November 5, 2025
Code Education – 300h at Code Education (School of Net)
January 1, 2021 - November 5, 2025
Full Cycle Development - Architecture and Developing Modern Applications based on Microservices at Code Education
January 1, 2021 - November 5, 2025
Postgraduate Degree in Applied AI Engineering at UNIPDS
January 1, 2026 - February 1, 2027
Full Cycle Development at Code Education (School of Net)
January 1, 2021 - June 15, 2026
Bootcamp GoStack (JavaScript Stack: NodeJS, TypeScript, ReactJS e React Native) at Rocketseat
January 1, 2020 - June 15, 2026
Bachelor of Computer Engineering at Federal University of Bahia (UFBA)
January 1, 2010 - December 31, 2017
Computer and Electronics Systems Engineering at Glasgow Caledonian University
January 1, 2014 - December 31, 2015

Qualifications

Backstage Associate
November 1, 2022 - November 5, 2025
AWS Certified Cloud Practitioner
April 23, 2021 - November 5, 2025
Backstage Associate
November 1, 2022 - June 15, 2026
AWS Certified Cloud Practitioner
April 23, 2021 - June 15, 2026

Industry Experience

Software & Internet, Education, Energy & Utilities, Financial Services, Professional Services, Computers & Electronics