🇺🇸 English · 🇧🇷 Português
I'm a System Analyst & Developer with a Software Engineering focus who builds applications people actually use — from healthcare management systems and delivery microservices to cloud-deployed APIs. I work across the full stack (the stuff you see on screen AND the engine behind it), with a strong emphasis on backend architecture. I hold three AWS certifications and I'm currently pursuing a post-graduation specialization in Java at UTFPR.
- 🎓 Post-graduation in Java — UTFPR (in progress)
- ☁️ 3× AWS Certified — Cloud Practitioner · Developer · Solutions Architect
- 📚 Tech, book & comics, keyboardholic, chess & gaming enthusiast
- 📝 Philomat, polymath & autodidact life long learner
- 🔭 Open to collaborating on innovative projects
Event-driven microservices — Java 21 · Spring Boot 3.5 · Spring Cloud · Apache Kafka · Resilience4j · Eureka · PostgreSQL · Docker · DDD
Four-service architecture (API Gateway, Service Registry, Delivery Tracking, Courier Management) with async Kafka messaging, circuit breakers, and domain-driven design.
Serverless URL shortener — Java 21 · AWS Lambda · API Gateway · S3 · Lombok · Jackson
URL shortening system using serverless architecture — two Lambda functions for URL creation/storage and redirect/expiration validation, backed by S3.
Plann.er ✈️
Travel planner API — Java · Spring Boot · Spring Web · JPA · Flyway · H2 Database
REST API for trip planning built during Rocketseat NLW Journey, featuring trip management with database migrations and dev tools.
Event & referral platform — Java 21 · Spring Boot 3.4 · MySQL · Docker · Lombok
Event subscription system with referral tracking, user ranking, and layered architecture (Controller → Service → Repository).
Book management system — Java 21 · Spring Boot 3 · PostgreSQL · Hibernate/JPA · Gutendex API
Application integrating with the Gutendex API for searching and managing books and authors, with RESTful endpoints and relational database persistence.
Healthcare management system — Java · Spring Boot 3 · Spring Security · JPA · Flyway · JUnit · Mockito · MySQL · Swagger
REST API for managing patients, doctors, and appointments with JWT auth, database migrations, automated testing, and interactive API documentation.
AI-assisted development — Java 21 · Spring Boot 3 · MySQL · Flyway · Hibernate · Lombok
Healthcare API developed with AI-assisted productivity techniques — exploring ChatGPT as a development tool for code comprehension, test generation, and debugging.
Java SE 11 learning path — Java SE 11 · Helidon · Oracle Cloud Infrastructure
Exercises and study cases from Oracle University's Java Foundations course, including Helidon REST services and OCI deployment concepts. Oracle Learning Explorer badge earned.
AI-powered Q&A rooms — Node.js · TypeScript · Fastify · PostgreSQL · pgvector · Drizzle ORM
Backend API with vector similarity search, Zod data validation, and a Next.js + React frontend.
📂 More Projects
Modern web application — React · TypeScript · Vite
Front-end project showcasing modern React patterns and TypeScript integration.
Cross-platform mobile app — React Native
Location-based app for discovering nearby deals, built during Rocketseat NLW.
Angular SPA — Angular 18 · TypeScript · Tailwind CSS · Docker · NGINX
Retro terminal-inspired interface with real-time WebSocket campaigns, JWT auth, and Docker multi-stage deployment.
Full-stack RPG API — Python · FastAPI · MongoDB · JWT · Docker · WebSocket · Scalar
REST & WebSocket API with LLM-powered narrative storytelling, character management, campaign system, and real-time gameplay.
- Clean Architecture & Design Patterns
- Microservices & Event-Driven Architecture
- Enterprise API design with Java & Spring Boot
- Cloud architecture with AWS
- Full stack development with React, Next.js & Angular
- Post-graduation specialization in Java — UTFPR
- LinkedIn: Lucas Góis
- Credly: lucasgoisdev
- Mail: contact@lucasgois.me
Building the future, one commit at a time 🚀
Keep on keeping on! 👍