I will debug and fix bugs in your java application

J
joker_shen
J
joker_shen
Joker Zhong
debug and fix bugs in your java application
Full Screen
debug and fix bugs in your java application

About this gig

Having trouble with your Java application? I can help investigate and fix a clearly defined, reproducible issue.


I am a Java developer with 8 years of professional experience. This service focuses on existing Java code: exceptions, incorrect behavior, and build or configuration issues that match my expertise.


Please message me before ordering with:

- Actual and expected behavior

- Reproduction steps and relevant error logs

- Java version, frameworks, and build tools

- Relevant source code or a runnable sample


After reviewing the issue, I will confirm the scope, price, and delivery time.


Delivery includes agreed code changes, an explanation of the cause and fix, and verification steps. A regression test is included where practical.


Each order covers the agreed issue only. New features, unrelated bugs, extensive refactoring, and production deployment require separate agreement. Revisions address the original agreed scope.


Please remove passwords, API keys, and personal data from shared files.

  • Programming language

    • Java

Get to know Joker Zhong

Joker Zhong
  • FromChina
  • Member sinceNov 2025
  • Avg. response time1 hour

  • Languages

    Chinese
我是一名拥有七年经验的 Java 开发工程师，主要从事基金、电商及财务相关系统的设计与开发。熟悉 Java、Spring Boot、Spring Cloud、MyBatis 等主流框架，具备扎实的分布式系统与微服务开发能力。在基金系统项目中负责交易处理、净值计算及清算流程优化，提升系统处理效率与数据一致性；在电商领域参与订单、库存、支付等核心模块开发，通过缓存与消息队列提升高并发场景下的系统稳定性与性能；在财务系统开发中，负责凭证、对账、报表及银行接口接入，推动财务流程自动化与数据安全建设。具备良好的业务理解能力和问题分析能力，注重代码质量与系统可靠性，能够独立负责模块研发并协同推进项目落地。

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