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Work Background
VolixDesenvolvedor de software
Oct. 2024 - Feb. 2026Go, Python - Remote, Brazil - 2024
* Migrated a high volume API from Python/FastAPI to Go/Gin, improving throughput by 37% and
stabilizing message processing under peak load.
* Refactored a JSON validation service to work on random samples (20-50 records per run) instead
of entire datasets, significantly reducing processing time while keeping enough coverage to catch
common issues.
* Designed and implemented backend components for a data oriented platform, working with Go,
RabbitMQ, PostgreSQL and BigQuery.
* Participated in code reviews, groom
Irya SolutionsDesenvolvedor Fullstack
Aug. 2020 - Jan. 2024Python, Ruby, Node.js - 2019-2024
* Grew from a task focused junior to a mid/senior backend engineer, taking ownership of critical
billing and integration services over time.
* Led the refactoring of a legacy Django billing system, iterating based on feedback from finance and
ops until the behavior matched business rules; reduced manual corrections and production issues.
* Worked on integrations and background jobs using Ruby on Rails, Sidekiq and Redis, improving
reliability of asynchronous processing.
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* Implemented backend services and APIs in Node.js for internal tools and external integrations with
third party providers.
* Collaborated with non technical stakeholders, translating requirements into small deliverables that
could be shipped and validated incrementally.
Codeminer42Estagiário de programação
Apr. 2019 - Jun. 2019Ruby, Node.js, PHP, AWS, S3, RDS, Lambda
* Built and maintained web applications and APIs using Ruby on Rails, Node.js and PHP in freelance and personal projects, focusing on maintainability and incremental improvements to existing code.
* Improved performance of key endpoints and database queries, and experimented with different
backend stacks while consolidating good engineering practices.
* Cloud Architecture Full Stack Development Projects
– Developed a scalable patient management platform using NestJS for the backend and React
with Redux Toolkit for the frontend. The architecture is Cloud-Native, deployed on AWS
using AWS Lambda (Serverless), Amazon RDS (PostgreSQL), and S3, focusing on
cost optimization and sensitive data security. Integrated Material UI interfaces, geolocation
APIs, and dynamic masking for high-performance data entry.
– Web application development focused on performance and scalability
– Implementation of automated testing and continuous integration
Instituto de Matemática e Estatística - Universidade de São Paulo (IME-USP)Administrador de rede
Mar. 2015 - Feb. 2017I was responsible—alongside six colleagues—for a computer network. Our role was to keep the network operational, implement improvements, and resolve issues and inquiries for anyone who sought our assistance. During this period, I gained knowledge regarding network services and learned how to interact more effectively with people. Some of my key accomplishments include: — Developed scripts using Puppet to ensure that all machines on the network had the same software installed. — Established partnerships with other groups and individuals to attract innovative talent and to organize lectures and tutorials. — The system we developed demonstrated high reliability, experiencing fewer than five days of downtime over a two-year period due to technical issues. — Created an automated script using Ruby and AWK to generate LaTeX code for producing simplified timesheets in PDF format (Link: https://github.com/dede999/FolhaPonto). — Provided technical support to users. — Mentored the next generation of administrators through activities designed to foster problem-solving skills and the identification of optimal solutions. This approach acknowledged that users would not always have all the answers—just as we did not either. This drove us to engage in continuous research to discover the best possible solutions.
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