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$
USD
I will debug and fix java spring boot rest API bugs
Chi
About this gig
API errors, failing database queries or unexpected backend behavior? I help you find the root cause and resolve a clearly scoped issue in your existing Java/Spring Boot application.
WHAT I CAN HELP WITH
- REST API errors, request validation and exception handling
- Spring Boot configuration and startup failures
- JPA/Hibernate queries and PostgreSQL/MySQL integration
- Backend logic bugs and unexpected responses
HOW I WORK
Reproduce the issue, trace the cause, agree on the fix and verify the result.
YOUR DELIVERABLES
Basic: Root-cause report and recommended fix; no code changes.
Standard: One agreed API bug fixed, with regression tests and verification steps.
Premium: One agreed issue across API, service or database layers, with regression tests and a written handover.
WHY WORK WITH ME
7+ years of backend experience and AWS Solutions Architect Professional certification, with hands-on Java, Spring Boot, SQL, Docker and AWS experience.
MESSAGE ME BEFORE ORDERING
Send expected vs. actual behavior, reproduction steps and sanitized logs. We will confirm scope and acceptance criteria. New features, migrations and production deployment are quoted separately.
Get to know Chi
Chi
Java Spring Boot Backend Developer, AWS
- FromVietnam
- Member sinceFeb 2017
Languages
English
I help businesses build and fix Java/Spring Boot backends and design, deploy, maintain and monitor systems on AWS. I troubleshoot AWS issues, integrate REST APIs, and work with PostgreSQL, MySQL, Docker and CI/CD.
With 7+ years of backend experience, around 5 years on AWS and AWS Solutions Architect Professional certification, I focus on maintainable solutions and clear handover. I also work with Node.js and Rust.
Send your requirements or sanitized error logs so we can agree on scope, deliverables and support duration before starting.
FAQ
Should I contact you before ordering?
Yes. Send the issue summary, expected and actual behavior, sanitized logs and reproduction steps. We will confirm scope and delivery time before you order.
What do the packages include?
Basic includes diagnosis and a recommended fix. Standard and Premium include implementation, regression tests and verification instructions for one agreed issue.
Can you work with an existing project?
Yes. Share authorized source access or a minimal reproduction and development setup instructions. Remove passwords, tokens, production credentials and personal data before sharing files.
Do you deploy changes to production?
Production deployment is not included. Changes are prepared and verified in a development or test environment. Deployment requires a separate agreed scope.
What counts as a revision?
A revision adjusts the agreed solution to the same issue and acceptance criteria. New features, unrelated bugs and major scope changes require a separate order.
