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I will fix java spring boot rest api and backend bugs
HARMANPREET
About this gig
Spring Boot issue blocking your API, database flow, tests, or deployment?
I diagnose reproducible Java and Spring Boot backend problems, identify the root cause, and implement a focused repair.
I CAN HELP WITH
Exceptions and failing REST endpoints Validation or serialization problems JPA, Hibernate, PostgreSQL, or MySQL issues Broken authentication flows Configuration and dependency errors Failing tests and startup failures Docker or deployment-related backend issues
You receive the agreed fix, clean source changes, verification against the reported behavior, and concise root-cause notes.
This Gig is for debugging and repair of an existing codebase. New feature development, large refactors, full backend builds, penetration testing, or unrelated issues are scoped separately.
Send the error message or stack trace, reproduction steps, expected behavior, environment details, and relevant source files before ordering. Do not send passwords or production secrets.
Get to know HARMANPREET
HARMANPREET
Java Spring Boot Backend and Full Stack Developer
- FromIndia
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, Punjabi, Hindi, German
Backend and full-stack developer building reliable SaaS products, REST APIs, web apps, and AI integrations with Java, Spring Boot, React, PostgreSQL, Redis, and Docker.
I can help with Spring Boot backends, REST APIs, SaaS/MVP development, React apps, authentication and RBAC, databases, third-party APIs, AI/LLM integrations, debugging, testing, and deployment.
I built and deployed Dervale, a multi-tenant AI gateway with routing, API keys, usage controls, caching, observability, billing, and automated testing.
Send me your requirements and I’ll recommend the best approach.
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FAQ
What Spring Boot issues can you fix?
I can diagnose reproducible API, validation, persistence, configuration, testing, startup, and deployment-related backend issues within the selected package scope.
What should I send before ordering?
Send the error message or stack trace, reproduction steps, expected behavior, environment details, and relevant source files. Do not send passwords or production secrets.
Can you work directly on my production system?
I prefer a repository, local setup, or safe test environment. Production deployment help can be scoped, but you should not share private credentials through the requirements form.
Does a package include new feature development?
No. These packages cover diagnosis and repair of existing behavior. New endpoints, major refactors, or feature development are scoped separately.
Will you explain the root cause?
Yes. I provide concise root-cause notes and explain the key code or configuration changes made for the agreed fix.
