About

Curitiba, Brazilme@olucasleite.dev

I currently work as a mid-level software engineer building scalable systems for retail and financial operations.

My day-to-day includes backend architecture, API design, cloud infrastructure, and reliable delivery pipelines.

Experience

Software Engineer (Mid-level)

Grupo Barigui · Curitiba, PR

  • —Building scalable systems for an ecosystem with 100+ retail stores
  • —Designing event-driven microservices with RabbitMQ and Kafka
  • —Implementing REST and GraphQL APIs with Node.js (TypeScript) and .NET 6+
  • —Maintaining CI/CD pipelines with GitHub Actions and Docker
  • —Building high-performance systems for retail operations
  • —Applying Clean Code, SOLID principles, and automated testing

Software Engineer

Investmoney S/A · Curitiba, PR

  • —Developed scalable web applications with React, Next.js, and TypeScript
  • —Built backend microservices with Node.js and TypeScript
  • —Implemented deployment automation and pipeline improvements
  • —Managed cloud infrastructure on AWS and Kubernetes

Front-End Developer Intern

Policia Cientifica do Parana · Curitiba, PR

  • —Developed institutional web applications focused on usability and performance
  • —Implemented responsive interfaces with React and Vue.js
  • —Integrated APIs for communication between internal systems
  • —Collaborated on code quality standards in a government environment

Back-End Developer Intern

Tribunal de Contas de Roraima · Boa Vista, RR

  • —Developed systems with Java and Spring Boot
  • —Created and integrated REST APIs
  • —Worked with relational databases (MySQL/PostgreSQL)
  • —Wrote automated tests with JUnit and Mockito and maintained legacy systems

IT Infrastructure / N2-N3 Support

Tribunal de Contas de Roraima · Boa Vista, RR

  • —Administered networks with MikroTik and monitoring with Zabbix
  • —Delivered level 2 and 3 technical support, remote and on-site
  • —Maintained and optimized Windows and Linux systems
  • —Automated tasks and documented technical processes

Skills

Languages
TypeScript · JavaScript · Java · C# · Python · Go
Front-end
React · Next.js · Vue.js · Tailwind CSS
Back-end
Node.js · Spring Boot · .NET · GraphQL · REST APIs
Databases
PostgreSQL · MySQL · Redis · MongoDB
Cloud
AWS · Kubernetes · Docker · Terraform
Tools
Git · GitHub Actions · RabbitMQ · Kafka · CI/CD

Education

Bachelor in Systems Analysis and Development

Pontifical Catholic University of Parana (PUCPR)

Academic highlight: 9.7 grade in Object-Oriented Programming (Java)