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In 1999, I began coding simple web pages for an internship and have since worked across multiple areas of software development, including frontend, backend, desktop, web and mobile applications, crawlers, databases, cloud and local environments, designing, teaching, managing, creating, and fixing software. I enjoy searching for and adopting the ideal solutions for every problem I tackle, leveraging my academic background and wide-ranging work experience around software best practices. Recently, after exploring reactive and functional programming, I've focused on Domain-Driven Design (DDD), CQRS, and Event Sourcing to modernize and improve software systems effectively.…In 1999, I began coding simple web pages for an internship and have since worked across multiple areas of software development, including frontend, backend, desktop, web and mobile applications, crawlers, databases, cloud and local environments, designing, teaching, managing, creating, and fixing software. I enjoy searching for and adopting the ideal solutions for every problem I tackle, leveraging my academic background and wide-ranging work experience around software best practices. Recently, after exploring reactive and functional programming, I've focused on Domain-Driven Design (DDD), CQRS, and Event Sourcing to modernize and improve software systems effectively.

Renato Pereira

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In 1999, I began coding simple web pages for an internship and have since worked across multiple areas of software development, including frontend, backend, desktop, web and mobile applications, crawlers, databases, cloud and local environments, designing, teaching, managing, creating, and fixing software. I enjoy searching for and adopting the ideal solutions for every problem I tackle, leveraging my academic background and wide-ranging work experience around software best practices. Recently, after exploring reactive and functional programming, I've focused on Domain-Driven Design (DDD), CQRS, and Event Sourcing to modernize and improve software systems effectively.…In 1999, I began coding simple web pages for an internship and have since worked across multiple areas of software development, including frontend, backend, desktop, web and mobile applications, crawlers, databases, cloud and local environments, designing, teaching, managing, creating, and fixing software. I enjoy searching for and adopting the ideal solutions for every problem I tackle, leveraging my academic background and wide-ranging work experience around software best practices. Recently, after exploring reactive and functional programming, I've focused on Domain-Driven Design (DDD), CQRS, and Event Sourcing to modernize and improve software systems effectively.

Available to hire

In 1999, I began coding simple web pages for an internship and have since worked across multiple areas of software development, including frontend, backend, desktop, web and mobile applications, crawlers, databases, cloud and local environments, designing, teaching, managing, creating, and fixing software. I enjoy searching for and adopting the ideal solutions for every problem I tackle, leveraging my academic background and wide-ranging work experience around software best practices.
Recently, after exploring reactive and functional programming, I’ve focused on Domain-Driven Design (DDD), CQRS, and Event Sourcing to modernize and improve software systems effectively.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Spanish; Castilian

Intermediate

French

Beginner

German

Beginner

Work Experience

Software Engineer at Uptempo

July 1, 2025 - August 22, 2025

Worked on Budgeting and Integrations modules of a Marketing Planning SaaS platform, applying TDD practices to legacy Java code with AI tools for regression prevention, collaborating with international teams across time zones to improve platform cohesion, embracing agile principles with iterative planning and continuous feedback, and leading refactoring initiatives to enhance system resilience and maintainability.

Software Engineer at NeoCO

May 1, 2022 - August 22, 2025

Provided IT consulting and solution development for clients including CIANET and CRESOL. Maintained and evolved a microservices service hub managing banking operations integrated via JMS/ActiveMQ. Gathered requirements for BI platform restructuring and competitive intelligence projects. Acted as Tech Lead for a 5-dev team overseeing code reviews, mentoring, and technical decisions while advocating automated testing.

Software Architect at Micromed

September 1, 2020 - August 22, 2025

Maintained a decade-old JEE legacy system and Kettle/Pentaho ETL processes integrating third-party systems. Built foundations for an in-house web application framework with Angular, Typescript, and Node.js. Improved transparency portal code with functional programming and query optimization. Increased system availability through monitoring and misconfiguration identification.

Software Engineer at Life s Hub

August 1, 2020 - August 22, 2025

Developed bots using R, Java, Spring Boot, and MongoDB on AWS EC2 to scrape health data from Brazilian Federal Government FTP sources. Collected approximately 100 GB/month, performed custom ETL before exporting data to clients using Azure Power BI.

React Native Developer at BairesDev

March 1, 2017 - August 22, 2025

Migrated Objective-C app to React Native to support iOS and Android platforms and participated in development of V2 with visuals and behaviors. Collaborated with a global remote team and contributed to React Native github library issues.

Software Engineer at Softplan Poligraph

May 1, 2015 - August 22, 2025

Led project and development of corporate systems for government branches across various domains such as Financial, HR, Civil Engineering, Stock Control, and Asset Tracking. Guided juniors and interns, created standardization guides, coordinated migration to Maven and BDD adoption, and mentored a development team focused on automated web testing and JEE6 architectures. Also developed ETL processes for third-party system integrations.