I will debug and fix a small java jsp or sql issue

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jcarloscalleja
J
jcarloscalleja
Juan Carlos C

About this gig

Have a reproducible Java/JSP error or SQL query issue? I will investigate one focused problem, explain the cause and provide a contained correction.


My background includes around three years working with enterprise Java, JSP, SQL and legacy business applications, plus practical exposure to Spring Boot and testing tools.


Basic: one issue, up to 2 relevant files. Standard: one issue, up to 5 files. Premium: one issue, up to 8 files, with basic tests or verification notes. Every package includes a patch and a brief explanation.


Please message me BEFORE ordering with the error, expected behavior, reproduction steps, stack versions and a minimal code sample so we can confirm scope.


This service excludes full application development, production access/deployment, security-sensitive changes and completing academic assessments. Remove secrets and personal data from samples. Share only code you are authorized to provide. AI tools may assist analysis; the correction will be checked against the agreed reproduction case.

Get to know Juan Carlos C

Juan Carlos C

Java JSP SQL developer and Excel CSV cleanup

  • FromSpain
  • Member sinceSep 2019
  • Languages

    Spanish, English
I am a Java developer with around three years of experience in enterprise applications, JSP, SQL and legacy system maintenance. I investigate reproducible bugs, provide focused corrections and explain the changes clearly. I also offer Excel and CSV cleanup and conversion of readable PDF tables into editable spreadsheets. My practical training includes Spring Boot, JUnit and Mockito. I work with clearly defined scopes, protect original data and check deliverables before sending them. Please message me to discuss your requirements.

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