Rafael Polonio
São Paulo
Summary
Software Engineer with over 5 years of experience being a results-driven professional with a strong background in developing and maintaining software solutions. Adept at troubleshooting and resolving software issues to ensure the stability and performance of products. Skilled in designing and developing applications with a focus on scalability and security. Technology enthusiast who loves solving problems, facing challenges, and making a difference.
Overview
6
6
years of professional experience
Work History
Software Engineer
Trayt Health
05.2024 - Current
- Coordinated and developed full stack applications from scratch using Nest.JS in the backend and React in the frontend.
- Designed with other engineers application architecture employing AWS tools
- Implemented Oauth2 in applications using Auth0
Software Engineer
South Geeks / Unagi
09.2022 - 05.2024
- Coordinated with other engineers to evaluate and improve current development.
- Proposed technical solutions based on customer requirements build system from the scratch.
- Developed Typescript AWS Lambda functions ecosystem connected to a PostgreSQL database and integrating with partners like Shopify, Stripe, Shipstation
- Built User Interface using Retool
- Conducted data modeling, performance and integration testing.
Software Developer
SMTCode / PlaybookUX
11.2021 - 11.2023
- Development of scalable GraphQL APIs using Ruby on Rails optimizing code for better performance, scalability, reliability, security and maintainability
- Engineered robust Microservices using NodeJS, TypeScript, Go, Python, establishing TDD and being responsible for the development from scratch and taking lead of deployment strategy
- Built advanced front-end features using React for web and React Native for mobile, adopting best practices.
- Employed AWS tools (SES, SQS, S3, etc) extensively in microservices bringing reliability with best practices usage
- Collaborated on stages of systems development lifecycle from requirement gathering to production releases.
Software Developer
Fliper
07.2020 - 01.2023
- Promoted knowledge sharing and agile practices within the development team and helping company to grow user base +100%
- Conducted reverse engineering of web and mobile applications to facilitate data retrieval and integration with techniques like Man In the Middle, Virtual Devices Reverse Engineering using MITMProxy and GenyMotion
- Designed and implemented high-performance microservices and browser request crawlers in Node.JS, Typescript and GO, applying EventDriven Architecture using RabbitMQ, Redis and MongoDB
- Performed debugging tasks and implementing unit / integration tests to identify root cause of errors or malfunctions in existing systems
Backend Developer
Neon
11.2019 - 07.2020
- Applied functional programming principles, backend for frontend strategy and test-driven development (TDD) in software development processes
- Enhanced system architecture by integrating robust microservices
- Researched emerging technologies related to backend development best practices and implemented Backend for Frontend layer increasing security and speed
IT Consultant/Developer
ViViTECH
12.2018 - 11.2019
- Implemented continuous integration processes and developed front-end components using Vue.JS and ReactJS
- Responsible for creating applications from scratch, developing and maintaining customer relationships by providing IT support and guidance to ensure client satisfaction
Education
MBA - Data Science & Analytics
University of Sao Paulo
Sao Paulo, Brazil01.2022
Bachelor - Materials Engineering
University of São Paulo
Sao Paulo, Brazil12.2018
Skills
- NodeJS
- Typescript
- React
- React Native
- Ruby on Rails
- Python
- TDD
- API Designing and Development
- REST API
- GraphQL
- AWS
- Event-Driven tools
- GO
- Agile
- Javascript Frameworks
Timeline
Software Engineer
Trayt Health
05.2024 - Current
Software Engineer
South Geeks / Unagi
09.2022 - 05.2024
Software Developer
SMTCode / PlaybookUX
11.2021 - 11.2023
Software Developer
Fliper
07.2020 - 01.2023
Backend Developer
Neon
11.2019 - 07.2020
IT Consultant/Developer
ViViTECH
12.2018 - 11.2019
MBA - Data Science & Analytics
University of Sao Paulo
Bachelor - Materials Engineering
University of São Paulo
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