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I will diagnose and fix your spring boot API issue
Junsoo Kim
About this gig
Blocked by a Spring Boot API error? Basic gives you a definite evidence-based diagnosis and next action; Standard and Premium add a focused tested fix for reproducible defects.
Basic guarantees a reproduction result, cause evidence, affected path, fix feasibility, and exact next action. If a narrow patch fits the 90-minute diagnosis, I include it with test evidence. Standard fixes one reproducible bug within 3 active hours; Premium fixes up to three related bugs in one module within 6 active hours.
PF06 is a self-initiated Java 21 demonstration of a reproduced 500, focused patch, and five tests, not paid-client or production evidence.
I reproduce, diagnose, patch where included, and verify. Message me with the failing command, sanitized stack trace, versions, and expected behavior.
Includes 14-day correction of reproducible defects in the delivered diagnosis or patch. Direct production incidents, major migrations, architecture-wide refactors, external permissions, large untested legacy investigations, infrastructure repair, security testing, and fixes for unreproducible defects are not included.
Get to know Junsoo Kim
Junsoo Kim
Web and Automation Developer
- FromSouth Korea
- Member sinceJul 2026
- Avg. response time1 hour
Languages
Korean, English
With 3+ years of professional experience in systems integration (SI), backend development, and business automation, I build responsive websites, workflow automations, Python data-cleaning tools, and Spring Boot API fixes. I turn requirements into practical deliverables by defining data flows, business rules, endpoints, and acceptance criteria. You receive clean source files, tested results, and a clear handoff. My portfolio includes self-initiated demos using fictional or anonymized data. Send me your goal, current setup, and deadline, and I can recommend the right scope.
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FAQ
What does Basic guarantee?
Basic guarantees a reproduction attempt and result, evidence-backed cause category, affected path, fix feasibility, and exact next action. A narrow patch is included when it fits the 90-minute diagnosis window; Standard is the first package that guarantees a fix for one agreed reproducible bug withi
Will you work directly in production?
Not under the listed packages. Production access needs separate safeguards and scope.
Does this include new features or refactoring?
No. This Gig covers the agreed defect and focused regression protection.
What if the issue is not reproducible?
Basic still delivers the reproduction result, inspected evidence, cause category or environmental blocker, feasibility, and exact next action. A fix cannot be promised without an agreed reproducible defect.
What is a revision?
A correction to the agreed patch and test behavior. A new defect or endpoint is new scope.
What does the 14-day warranty cover?
I correct defects in the delivered diagnosis or patch that reproduce with the agreed evidence, code, command, and environment for 14 calendar days. A new bug, environment change, or dependency change is new scope.
Is PF06 production client evidence?
No. It is an isolated self-initiated sample made to demonstrate the debugging method.
