● Available for new opportunities

João Victor Lúcio dos Santos

Fullstack Developer

3 years building high-traffic web applications end-to-end. REST APIs and microservices in Java/Spring Boot. Responsive UIs in Angular and React. Relational & NoSQL databases, Apache Kafka, Docker, CI/CD. Agile squads, Clean Code, SOLID, TDD.

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Java Spring Boot React Angular Docker Kafka AWS Microservices Redis PostgreSQL

Technical
Skills

Backend
Java 8/11/17/21 Spring Boot Spring Security Spring Cloud Hibernate JPA Node.js Express.js Python
Frontend
Angular React React Native TypeScript JavaScript HTML5 CSS3
Databases
PostgreSQL Oracle MySQL SQL Server Sybase MongoDB Redis
APIs & Integration
REST APIs Microservices Apache Kafka OpenFeign Swagger/OpenAPI
Cloud & DevOps
AWS EC2/S3 Docker GitHub Actions Azure DevOps Vercel Git
Quality & Architecture
TDD JUnit Mockito Clean Code SOLID Design Patterns API First Scrum Kanban

Professional
Experience

Fullstack Developer
Edenred Ticket Log
Jul 2023 — Present
  • Built and maintained the fleet management ecosystem of Brazil's largest company in the sector, bridging legacy architectures and modern microservices.
  • Developed and sustained REST APIs and microservices in Java & Spring Boot for high-traffic, production-grade applications.
  • Delivered responsive frontend features in Angular and JavaScript, consuming REST APIs.
  • Optimized critical endpoint latency via SQL query tuning and Redis cache implementation.
  • Worked with complex relational data modelling on Oracle and Sybase databases.
  • Monitored production applications using metrics and logs for proactive incident resolution.
  • Automated deployments and environment management with Docker and Azure DevOps.
  • Active participation in agile squads: code reviews, ceremonies, technical decision-making.
Java 8/17/21 Spring Boot Spring Security Hibernate/JPA Microservices Angular JavaScript Oracle Sybase Redis Docker Azure DevOps Git
Backend Developer (Intern)
DBC Company
Jan 2023 — Jul 2023
  • Developed backend applications in Java and Spring Boot focused on RESTful APIs and inter-microservice integration.
  • Implemented service-to-service communication via OpenFeign with clear contracts and low coupling.
  • Managed data persistence with JPA/Hibernate on PostgreSQL.
  • Wrote unit tests with JUnit and Mockito following TDD practices.
  • Participated in the full development lifecycle: implementation, testing, QA, and deployment.
Java 21 Spring Boot Spring Security Hibernate/JPA OpenFeign PostgreSQL JUnit Mockito Git

Education &
Languages

B.Sc. Computer Engineering
Centro Universitário das Américas — São Paulo, SP
2021 — 2025
Portuguese
Native
English
Intermediate / Advanced