You will get a Java Spring Boot backend bug diagnosis and fix
Project details
I diagnose and fix clearly scoped Java and Spring Boot backend issues.
This service is suitable for startup failures, REST API errors, JPA/Hibernate and transaction problems, database integration issues, Maven dependency conflicts, configuration errors, timeouts, and production-related backend failures.
My approach is evidence-based: I review the reported behavior, logs, stack traces, relevant code, and configuration to identify the root cause before making changes. I focus on the smallest safe fix and clear verification.
Starter includes diagnosis and recommended fixes.
Standard includes diagnosis, implementation, and verification.
Advanced covers one related cross-layer production issue involving Spring Boot plus a database or Nginx layer, with verification and rollback guidance.
The scope is limited to one clearly defined issue or related request flow.
This service is suitable for startup failures, REST API errors, JPA/Hibernate and transaction problems, database integration issues, Maven dependency conflicts, configuration errors, timeouts, and production-related backend failures.
My approach is evidence-based: I review the reported behavior, logs, stack traces, relevant code, and configuration to identify the root cause before making changes. I focus on the smallest safe fix and clear verification.
Starter includes diagnosis and recommended fixes.
Standard includes diagnosis, implementation, and verification.
Advanced covers one related cross-layer production issue involving Spring Boot plus a database or Nginx layer, with verification and rollback guidance.
The scope is limited to one clearly defined issue or related request flow.
Programming Languages
HTML & CSS, JavaScript, JavaCoding Expertise
Performance OptimizationWhat's included
| Service Tiers |
Starter
$39
|
Standard
$99
|
Advanced
$179
|
|---|---|---|---|
| Delivery Time | 3 days | 4 days | 5 days |
Number of Revisions | 0 | 1 | 1 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments | - | - |
Optional add-ons
You can add these on the next page.
Additional Related Backend Issue
(+ 1 Day)
+$60
Database or Nginx Layer Analysis
(+ 1 Day)
+$60About Jack
Java/Spring Boot Engineer | Nginx & PostgreSQL Troubleshooting
Foshan, China - 3:24 pm local time
I help teams solve issues across application code, PostgreSQL databases, Linux servers, and Nginx/OpenResty.
I can help with:
• Spring Boot bug fixes and REST API development
• Nginx reverse proxy, 502/504, headers, timeouts, SSL, uploads, and downloads
• PostgreSQL slow SQL, locking, indexing, and schema change risks
• JVM, systemd, Maven, deployment, and application startup issues
• JPA/Hibernate transactions and database connection pool problems
• Java code, configuration, and production-readiness reviews
• Root cause analysis for production incidents
My background includes enterprise SaaS systems, microservices, multi-tenant architecture, system integration, high availability, database optimization, and production incident analysis.
I focus on finding the root cause, making safe and minimal changes, and providing clear verification and rollback steps.
I am best suited for short-term, fixed-scope projects that can be completed asynchronously, including evening and weekend troubleshooting.
Steps for completing your project
After purchasing the project, send requirements so Jack can start the project.
Delivery time starts when Jack receives requirements from you.
Jack works on your project following the steps below.
Revisions may occur after the delivery date.
Diagnose the issue
Review the relevant logs, stack traces, code, configuration, and reproduction steps to identify the root cause.
Fix or recommend remediation
Implement the agreed fix within scope, or provide clear remediation guidance for diagnosis-only orders.