I will develop a java spring boot backend API for you


About this gig
Need a robust, production-grade Java backend built the way enterprise teams actually build them?
I'm a senior software engineer with years of hands-on experience building and owning Java/Spring Boot systems in production not just tutorials-level CRUD apps.
What I bring to your project:
Real production experience Spring Boot, JPA/Hibernate, Spring Security, Java 21
Clean, layered architecture controllers, services, repositories done right
Database design relational or DynamoDB, whichever fits your use case
Observability built in when you need it OpenTelemetry, Micrometer, CloudWatch metrics, so you can see what your system is actually doing in production
Deployment-ready AWS-native (Lambda + SnapStart, ECS, or EC2) or containerized
What's included:
- REST API with proper request validation and error handling
- Database layer (JPA/Hibernate or DynamoDB), migrations included
- Spring Security setup (JWT or session-based, your call)
- Optional: OpenTelemetry tracing + CloudWatch dashboards for real production visibility
- Clear documentation so you or your next dev can pick it up easily
Why it matters:
Most freelance Spring Boot gigs stop at "it works." I build for what happens after launch logg
Get to know Constantin T
Senior Software Engineer
- FromLuxembourg
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, Luxembourgish, German, French

