Spring Boot Backend Bug Fixes

@rohitpatidar001

As an experienced software developer with a primary focus on backend development using Spring Boot and RESTful APIs, I'm confident that my skills are a perfect match for your project. Over the course of my 9+ year career, I've tackled and resolved complex issues similar to the ones you've described including database interactions, API endpoints, and authentication flows. My proficiency with integrating REST-based AI/LLM APIs (GPT, Codex) into Java and Spring Boot backends can be leveraged to enhance the performance and reliability of your application. I take pride in delivering clean code that enables long-term maintainability. My familiarity with tools like IntelliJ, Maven, Postman, Docker, TestContainers will smooth the bug-fixing process and facilitate better communication regarding any changes. Given your existing stack's nature, my experience with CI/CD pipelines and AWS-based deployments can be an added advantage. Not only can I provide stable database interactions, API endpoints, and authentication flow solutions within your repository, but am also capable of offering novel ways to improve these aspects in terms of scalability and performance. For me it's not just about solving problems but solving them effectively and documenting the changes made for clarity. I have lead successful roles in similar projects in sectors such as finance, compliance, healthcare etc making reliability and scalability priorities.I'd reall

@AZTURK1

Hi there, I will reproduce and fix the Spring Boot backend issues (DB interactions, failing API endpoints, and auth flow) and validate fixes against your React front-end running on the VPS , I’ve done end-to-end Java + React integrations and production VPS troubleshooting before. - Reproduce failures locally and on the VPS, fix Spring Boot code (MySQL queries, JPA/transactions, controller mappings) and deliver a clean, tested codebase - Run full build with Maven, add/adjust integration tests (TestContainers), and verify no regressions on React views using Postman and browser checks - Provide concise changelog explaining root causes and corrective code snippets - Risk control: staged validation, rollback notes, CI-friendly tests and documented deployment steps to ensure minimal downtime Skills: ✅ Spring Boot ✅ Java, Maven ✅ Docker, TestContainers ✅ MySQL, Database Management ✅ API Development, CI validation ✅ Linux, VPS troubleshooting Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately , Can you share repository access (branch to work on), VPS SSH details or a reproducible local dataset, and any failing test logs you’ve already captured? Thanks,

@pvsysgroupinc

As someone who has personally built and deployed numerous Java and Spring Boot applications over the past 16 years, I have a comprehensive understanding of how to navigate through bug fixes effectively and efficiently. My experience is not limited to coding alone; I also excel at rigorous troubleshooting, which is exactly what your project requires. In addition to my expansive knowledge of the technology stack you use - IntelliJ, Maven, Postman, Docker - I'm even well-versed with TestContainers for thorough backend testing. With this skillset in hand, I can dive straight into your repository, identify the root causes behind your database interactions, API endpoint and authentication flow issues, and deliver clean solutions. I'll ensure that there are no regressions on the React side once the backend fixes are applied to guarantee a stable build that will bring a peace of mind. Being a business owner myself, I run on no outsourcing or extra employees. By choosing me, you're working directly with a battle-tested veteran of the IT industry ready to get your backend sparklingly pristine!

@ParasTech7

I have 21 years of experince, IIT graduate, Principal Software engineer at Microsoft, I have extensive experince with JAva, Spring boot, JSP and sql , with efficient API development. Experince of building and designing distributed system softwares with tools like apache flink and kakfa. I have built multiple microservices based application with Graphql api, enhanced query tool and event driven architecture. I have understood your requirements and can deliver fully.

@TechizeBuilder

Hi, I came across your project "Spring Boot Backend Bug Fixes" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in JavaScript, MySQL, API Development, Linux. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@SmartCodeDev

Hey! I can jump into your React + Spring Boot setup and track down the issues with database interactions, API endpoints, and authentication. I’ll reproduce the problems locally or on your VPS, fix the root causes, and make sure the backend and React frontend are fully stable. You’ll get an updated Spring Boot codebase, a concise change log explaining what was wrong and how it was resolved, and confirmation that all React views load and authenticate without errors. I can use IntelliJ, Maven, Postman, Docker, or TestContainers as needed to ensure everything is clean, tested, and ready for production.

@belotefreelancer

"I have gone through your description. "This is my area of specialization, i can get it done 100 % perfectly well. Please ping me in person. I can help you to complete all tasks. I have hands-on experience in this field. We have already done similar types of projects. Connect with us for more details. Rest assured your satisfaction is guaranteed." Looking forward to your response." Thank you for your time and I am confident that we will be a great fit for this project. Best,

@dalexey025

Hello! I will show my ability to satisfy your requirements by fixing authentication issue in short time FOR FREE first. If you are satisfied with my result, please give me the chance to contribute. As an experience Java developer, I am proficient in Java Spring. I also have extensive experience working with API integration using React. Best regards.

@abhayk49

Hi, I’m a Java Spring Boot developer with strong experience debugging backend systems, including database issues, API failures, and authentication flows. ✅ Relevant Expertise ✅ Java (8–21) & Spring Boot ✅ REST API debugging and backend fixes ✅ Database troubleshooting (MySQL / PostgreSQL) ✅ Spring Security authentication ✅ Maven, Docker, Postman, TestContainers ? Approach • Reproduce the issues locally or on the VPS • Analyze logs and trace failures in database, APIs, and auth flow • Fix the root causes while keeping existing functionality intact • Run tests to ensure a stable build with no regressions ✔ Deliverables ✔ Updated Spring Boot code with working database, APIs, and authentication ✔ Clear changelog explaining the fixes ✔ Stable build ready for deployment Ready to review the repository and start troubleshooting. Best regards, Abhay

@shibbuquadir

Leverage our extensive experience in API development, database management, and JavaScript to efficiently tackle the thorny bugs that are plaguing your Spring Boot backend. At Paper Perfect, we pride ourselves on not just identifying and fixing bugs but also documenting them thoroughly for future references. We understand that your new platform demands a stable build, with all tests passing and no regressions. Our proficiency in tools like IntelliJ, Maven, Postman, Docker, and TestContainers will ensure we don't leave any stones unturned. Moreover, as skilled frontend and backend developers proficient in React, Angular, Node.js along with other technologies like Flutter and React Native for mobile apps - we understand the delicate nuances of how the frontend of an application interacts with its backend. This knowledge will help us in reproducing the problems locally or directly on the VPS - wherever the root cause may lie. We guarantee you an updated codebase that resolves database interactions, fixes API endpoints, and bolster authentication flow to make it more robust and scalable.

@ahmetTC

Hope you are doing well! Lets start! This project involves debugging a React front-end integrated with a Spring Boot backend where database queries, API endpoints, and authentication flows are failing. Previous backend troubleshooting projects included resolving broken REST APIs, fixing Hibernate/JPA database mappings, and stabilizing JWT/session authentication in Spring Boot environments. Common issues such as incorrect entity relationships, misconfigured security filters, and failing API routes were identified using server logs, Postman testing, and controlled local replication. Problems like inconsistent database connections and environment configuration mismatches were resolved through Maven dependency checks, proper configuration management, and endpoint validation. Every fix was delivered with clean commits, documentation, and verification to ensure React components loaded correctly without backend errors. I know what do I build for you, can complete it to your full satisfaction within your timeline. I am ready for you and waiting here. Thank you.

@souravsasmal14

Hi! I can jump into your Spring Boot backend, reproduce the database, API, and authentication issues, and deliver clean, tested fixes without affecting your React front-end. I’ll provide an updated codebase, a concise changelog explaining each fix, and confirm all React views and authentication flows work flawlessly. You’ll get a stable build ready for production, fully documented and verified with tests.

@haitham1996

Database issues, broken API endpoints, and a failing auth flow on a Spring Boot backend — I've seen this exact combination before and I know exactly where to look. ? This is my native stack. Java, Spring Boot, REST APIs, and authentication flows are what I do every single day — I've built and debugged production systems exactly like yours at ATOS and Qeema. I won't be learning your tools on your time. Here's what's getting fixed and delivered: ✅ Database interactions diagnosed and resolved — whether it's transaction issues, lazy loading, connection pool exhaustion, or query errors ✅ Every broken API endpoint traced, fixed, and tested via Postman — clean responses, correct status codes ✅ Authentication flow restored end-to-end — tokens, sessions, filters, whatever is breaking it gets found and fixed ✅ All tests passing, zero regressions on the React side — every view loads and authenticates cleanly ✅ Concise change log explaining exactly what was broken and how it was resolved — so you understand every fix before merging to production Share the repository and I'll have a diagnosis and action plan back to you within hours — not days. ? ? For a focused bug-fixing engagement like this I'd estimate $150–$250 depending on how deep the rabbit hole goes — fair, fast, and fully documented. What does your current auth setup look like — JWT, Spring Security, OAuth? That'll tell me exactly where to start. Ready to dive in RIGHT NOW. ?

@Visharaa2024

I’m an experienced full-stack developer with expertise in React front-ends and Spring Boot back-ends. I can jump into your existing repository, reproduce the issues locally or on your VPS, and resolve the broken database interactions, API endpoints, and authentication flows. I will deliver a stable, fully tested backend with clean, well-documented fixes, along with a concise change log explaining what was broken and how it was resolved. I will also ensure all React views load correctly and authenticate without errors, providing a seamless integration between front-end and back-end for production deployment.

@murtuza90

As a highly skilled and experienced software developer with over 13 years in the field, I am confident in my ability to tackle any challenge your Spring Boot backend may present. My extensive experience working with complex architectures and dealing with diverse tech stacks uniquely equips me to dive straight into your existing repository, identify the root causes of the bugs you're experiencing, and deliver clean, well-documented fixes. In this case, my deep understanding of JavaScript, Linux, and MySQL will prove invaluable. One of my core strengths is delivering projects that are not only functional but also scalable- a necessity for any growing business. I am well-versed in employing familiar tools such as IntelliJ, Maven, Postman, Docker, Testcontainers (among others) which will enable me to set up a stable local environment matching your VPS setup for efficient troubleshooting. With TDD as a central tenet of my work ethic, I guarantee stable build iterations with all tests passing and zero regressions on the React side.

@kishanprasadtech

Hello, I’m a Full-Stack Developer with 5+ years of experience working with React frontends and Spring Boot backends, including debugging production systems and stabilizing APIs. I can jump into your repository, analyze the existing architecture, and reproduce the issues locally or directly on the VPS to identify the root causes. My focus will be on stabilizing the database interactions, fixing broken API endpoints, and resolving authentication flow issues while ensuring there are no regressions on the React side. The goal is to deliver a stable backend build with all tests passing and seamless communication with the React frontend. I’d be happy to review the repository and start troubleshooting immediately. Best regards, Kishan Prasad

@arvinjay007

Hi there, it sounds like your Spring Boot backend is consistently failing around database transactions, API endpoints, and the authentication layer. These kinds of silent backend failures are almost always caused by misconfigured JPA mappings, incomplete exception handling, or token validation flow issues, and I’ve spent the last 5 years fixing exactly these types of defects in production systems. I’ll clone your repo, replicate the issues locally with Docker or TestContainers, then debug the failing endpoints directly on your VPS. Once identified, I’ll patch the database logic, stabilize API routing and serialization, and rewrite the auth flow to ensure React loads every view cleanly. I’ll also deliver a clear change log and ensure all tests pass with zero regressions. Best regards, Arvin Jay

@swenidinfo

I believe Swenid Private Limited is the ideal fit for your project, and my expertise in API Development and MySQL can help address the recurring issues you have been facing. With an extensive background in backend development, particularly using Spring Boot (Java), I am confident in my ability to efficiently tackle these bugs and improve the overall stability of your system. When it comes to troubleshooting, I adopt a hands-on approach. I will dive into your existing repository, utilize appropriate tools like IntelliJ and Postman to locate and reproduce the problems as closely as possible, whether locally or directly on your VPS. Once identified, I will meticulously analyze each issue's root causes to ensure these aren't just surface-level fixes but permanent solutions. Moreover, I understand that clear communication and documentation are crucial in ensuring a seamless handover of the completed project. As such, in addition to delivering updated functional codebase, I will provide concise change logs that detail what was broken and clearly explain how it was resolved. To prove all the fixes won't introduce any regressions on the React frontend, rigorous testing will be conducted using tools like Docker and TestContainers. Achieving a stable and reliable build where every view loads without backend errors is my top priority

@abbas021

Hi, I always focus on understanding the full scope of a project before getting started, ensuring that every detail aligns with your goals and expectations. We are an expert team which have many years of experience on Java, JavaScript, Linux, MySQL, Docker, Database Management, API Development, Spring Boot Lets connect in chat so that We discuss further. Thank You