React JS & .NET Core Bug Fix

@r4rony

Hi, With 15+ years of experience in React.js and .NET Core development, we can quickly identify and resolve both frontend and backend issues while improving overall application stability and user experience. We have worked on complex business applications involving API integrations, dashboards, user management, and performance optimization. Could you please share the list of current bugs and confirm whether the application is deployed on a staging environment? Looking forward to discussing the project. Helena

@utamshingala

Hi, Quick question: Do you already have a documented list of bugs/issues, or would you like me to perform a full audit of both the React frontend and .NET Core backend first? I have extensive experience troubleshooting and fixing complex React.js and .NET Core applications, including UI/UX inconsistencies, API integration issues, performance bottlenecks, and broken business workflows. I can quickly identify root causes, implement clean fixes, and ensure the application is stable, responsive, and production-ready. I’m available to start immediately and can share relevant React/.NET bug-fixing projects upon request. Best, Uttam Shingala

@webperfection123

Hi There, What specific bugs are you encountering in your React JS and .NET Core application? I can help improve your UI/UX and fix broken features to ensure everything runs smoothly. With 7+ years of experience in React and .NET Core, I’ve dealt with numerous complex applications and resolved various functionality issues. I also have a good background in UI/UX design, so I can enhance the overall experience while fixing any issues. Let me know if you’d like to discuss this further or if there’s a time we could connect to review the application together. Best Regards, Priyanka

@softsolution2000

Hi, React JS frontend bugs bleeding into .NET Core backend behavior is usually where the real debugging time goes, so I'm curious which layer is giving you more trouble. I've handled this kind of cross-stack debugging on several projects — tracing whether a broken feature is a state management issue on the React side or an API contract mismatch on the .NET side. Sometimes it's both, and the fix on one end masks the other. Happy to take a look at what you've got. If you can share the repo or a summary of the specific bugs, I can give you a realistic estimate on time pretty quickly. Khalid

@ost

With a solid background in both React JS and .NET Core, I have honed my skills in problem-solving and bug fixing for complex applications. I understand that even the smallest UI/UX issues and functionality bugs can greatly impact the smooth operation of your application, which is why precision is my utmost priority. Additionally, my experience working with Mandarin-speaking clients aligns well with this project's preference.

@extreamcode

Hi [ClientFirstName], I can see the real pain here isn’t just “bugs” , it’s the app feeling unreliable across both React and .NET Core, which usually means small issues are compounding into broken flows and a rough user experience. I’ve fixed similar full-stack issues before, tracing frontend state problems, API mismatches, backend logic errors, and UI flow breakdowns until the whole system behaves cleanly again. I’ll review the affected screens and endpoints, isolate the root causes, and fix the frontend/backend issues in a structured way so the interface feels smooth and the features work consistently. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. If helpful, I can start by mapping the most critical bugs first, then move through the remaining UI/UX and functionality issues in priority order. Which bug is hurting the core user flow most right now: the React UI, the .NET Core backend, or the API connection between them? Best regards, Asad

@rizwange4

Hello, I can help fix the bugs in your React JS + .NET Core application on both frontend and backend. What I will do: • Identify and fix UI/UX issues in React frontend • Debug and repair broken features and workflows • Fix backend issues in .NET Core APIs and services • Ensure smooth data flow between frontend and backend • Improve UI consistency and user experience where needed • Test full application flow after fixes to ensure stability Skills & Experience: • React JS (components, state management, hooks) • .NET Core Web API development & debugging • Full-stack troubleshooting and integration fixes • Experience fixing complex production bugs Deliverables: • Fully functional frontend + backend with issues resolved • Stable application with tested key workflows • Brief summary of bugs fixed and changes made I can start immediately once access to the repository/environment is provided. Best regards, Muhammad Rizwan LA

@Friends4it

Hi — I can fix the frontend and backend bugs in your React + .NET Core application. We have full-stack engineers comfortable across React and .NET Core, and bug-fixing in established codebases (rather than greenfield) is a regular part of our work. Approach: (1) reproduce each reported issue and triage frontend (React UI/UX, broken features) vs backend (.NET Core API/logic); (2) fix the functional bugs and smooth the UI/UX issues you've flagged, verifying against real reproduction steps; (3) regression-check related flows so a fix doesn't break something adjacent; (4) deliver via your branching workflow with clear notes on each fix. If helpful I can also flag any quick stability/UX wins I spot along the way. Please share repo access and the bug list and I'll start triaging. — Muhammad Idrees, Global IT Vision Pvt. Ltd

@ZohaibRoy

⭐⭐⭐⭐⭐ Fix Bugs in Your React JS and .NET Core Application ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for a developer to fix bugs in your React JS and .NET Core application. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for bug fixing in complex applications. I will identify the UI/UX issues and functionality bugs, ensuring a smooth operation and improved user experience within your budget. ➡️ Why Me? I can easily handle your bug fixing project as I have 5 years of experience in React JS and .NET Core development. My expertise includes problem-solving, debugging, and enhancing UI/UX design. Additionally, I have a strong grip on other relevant technologies, ensuring a thorough approach to your project. ➡️ Let's have a quick chat to discuss your project in detail. I can provide you with samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ React JS ✅ .NET Core ✅ Bug Fixing ✅ UI/UX Improvement ✅ Frontend Development ✅ Backend Development ✅ Problem Solving ✅ Code Debugging ✅ Feature Enhancement ✅ Application Testing ✅ JavaScript ✅ C# Waiting for your response! Best Regards, Zohaib

@doomshellsl

Hello, Your requirement to fix bugs in an existing React JS and .NET Core application aligns perfectly with our expertise at Doomshell Software Pvt. Ltd. We specialize in troubleshooting, optimizing, and maintaining complex web applications, ensuring stable performance across both frontend and backend systems. We can support you with: ✔ React JS frontend debugging and UI/UX improvements ✔ .NET Core backend issue resolution and API troubleshooting ✔ Fixing broken functionalities and application errors ✔ Performance optimization and code quality improvements ✔ Cross-browser and responsive behavior fixes ✔ End-to-end testing and validation of implemented fixes ✔ Clean, maintainable, and scalable code enhancements Our approach: ✔ Analyze the existing codebase to identify root causes ✔ Prioritize critical bugs impacting functionality and user experience ✔ Implement targeted fixes with minimal disruption ✔ Thoroughly test frontend-backend workflows to ensure stability At Doomshell Software Pvt. Ltd., we help businesses restore application reliability, improve user experience, and maintain long-term performance. Quick questions: 1. Do you have a documented list of bugs/issues to address? 2. Which versions of React JS and .NET Core is the application currently running? Regards.

@ahsansaleemnaz

Shall we have a quick call? I've over 15+ years of experience in .NET Can you share more details about the specific bugs — are they causing crashes, broken features, or just visual issues? And can you share access to the repo so I can assess the scope before quoting? I'll fix both the frontend React JS issues and backend .NET Core bugs, and clean up any UI/UX problems along the way.

@appmechanic

Hello, I hope you're having a great day. I have hands-on experience fixing bugs in React JS frontends and .NET Core backends, having delivered multiple maintenance and stabilization efforts. I once delivered a fix that involved tracking down a race condition between a React component using Redux and an ASP.NET Core REST endpoint, repairing inconsistent JSON payloads and updating Entity Framework migrations to resolve data mismatches. I'd start by running the app locally, attaching the browser profiler and .NET debugger to reproduce UI failures and backend exceptions, then add targeted unit and integration tests (Jest for React, xUnit for .NET Core) to lock the fixes. I'd use tools like Redux DevTools, Postman, and logging (Serilog) to trace requests and state. Glad to walk through a short checklist and confirm priorities; I have some questions regarding the project: 1) Are there reproducible steps and any console or server logs for the top two issues? 2) Which authentication method is in use (JWT, cookie-auth), and does fixing bugs require touching auth flows? 3) Is the frontend built with plain CSS, CSS modules, or a UI library (Material-UI, Bootstrap)? Looking forward to hearing from you, Paramjot Singh

@inertiasoftltd

Hello, I am Luqman Ahmed, an experienced web developer proficient in both React JS and .NET Core. I have been in the industry for over 8 years, specialising in website development using various technologies like CMS, WordPress, Shopify, and WIX. I approach every project with an artistic mindset; my aim is not just to code but to craft a digital masterpiece - exactly what your project needs. "My detailed process guides you every step of the way," and it applies particularly well to your project. Troubleshooting complex applications and fixing bugs are not foreign concepts to me; in fact, they're where I thrive. Moreover, I believe that good functionality should also be visually-pleasing. My strong background in UI/UX design knowledge dovetails with your request to improve user interface and experience. To top it off, I'm not just a technically-strong developer; I am fluent in Mandarin too! This skill ensures smooth communication not only with you but also with your Mandarin-speaking users. Don't let the bugs diminish the impact of your application. Collaborate with me and together we'll transform it into a flawless digital reality on time! Thanks!

@corpmember29

Hello , Being a full-stack web developer with extensive experience in AngularJS, React JS, and .NET Core, I'm confident that I'm the perfect fit to resolve the frontend and backend issues you're experiencing. I really understand the stakes when it comes to delivering bug-free experiences to end-users. Apart from my technical knowledge, my skills also cover key areas such as UI/UX design, Backend Development, HTML5 and JavaScript which is going to be very pivotal in revamping your existing application. I have spent years not only building but deeply focusing on bug fixing in complex applications. It's something that has been central to the work I've been involved in across different industries. My commitment doesn't end at fixing bugs; to guarantee the long-term well-being of your application, I always ensure clean, maintainable, and secure code. Please share details to check it and work accordingly Thanks Christina

@caciocode

Hi, I am a software engineer. I can make changes and fix issues in your project.

@Herculesz

Hi I can help debug and stabilize your existing React JS and .NET Core application across both frontend UI/UX issues and backend functionality bugs. The key technical problem is often not the visible bug itself, but mismatched API contracts, fragile state handling, unhandled backend exceptions, or Entity Framework query/data issues causing features to break unpredictably. My approach is to reproduce each issue, trace the React component/state flow, inspect API requests, review .NET Core controllers/services, and fix root causes instead of applying temporary patches. I have experience fixing similar React and .NET Core applications involving broken forms, dashboard UI problems, authentication issues, API validation errors, database/EF Core bugs, and cross-browser layout inconsistencies. I can use React DevTools, browser network logs, .NET logging, debugging tools, and Git-based changes to make each fix clear and testable. I also pay attention to usability, spacing, loading states, validation messages, and responsive behavior while resolving functional bugs. Mandarin communication can be supported in writing if needed for clearer coordination. I will provide clean fixes and explanations so you understand what was broken and how it was resolved. Thanks, Hercules

@skalogir

Hello, I understand you need an experienced developer to diagnose and fix bugs across an existing React JS and .NET Core application, including frontend UI/UX issues, broken functionality, and stability problems affecting the overall user experience. I have experience maintaining and troubleshooting production React and .NET applications, identifying root causes in complex codebases, resolving frontend and backend defects, improving usability, and delivering reliable fixes without introducing regressions. I can review the application systematically, prioritize issues by impact, implement and test fixes across both layers, improve the user interface where needed, and provide clear documentation of all changes for future maintenance. Q1: Do you have a bug list already documented, or should the project begin with a full issue audit? Q2: Is the application currently deployed in production, staging, or both? Q3: Are there any critical features or modules that should be prioritized first? Best regards, Stratos

@vishal1145

Your React/.NET Core stack is solid, but if these bugs keep resurfacing, it's usually a symptom of missing error boundaries on the frontend or unhandled exceptions in your API middleware. I've debugged 15+ production apps where "random crashes" turned out to be race conditions in async state updates or null reference exceptions that weren't logged properly. Before I dive in, two quick questions: Are you seeing errors in browser console that aren't being caught by your error handling? And on the backend, are you logging exceptions to Application Insights or similar, or are they just disappearing? Here's how I'd approach this: - REACT DEBUGGING: Add error boundaries around major components, implement proper loading states, and fix any useEffect dependency issues causing infinite re-renders. - .NET CORE API: Add global exception middleware, validate all DTOs with FluentValidation, and ensure async/await patterns aren't causing deadlocks. - UI/UX FIXES: Audit component hierarchy for prop drilling issues, implement skeleton loaders for better perceived performance, and ensure responsive breakpoints work across devices. - TESTING: Write unit tests for the fixed components and integration tests for API endpoints to prevent regression. I've fixed similar issues for 8 clients running React + .NET stacks, including one fintech app where unhandled promise rejections were causing silent payment failures. Let's hop on a quick call to reproduce the bugs in real-time so I can give you an accurate timeline.

@axiomswb

Resolving React and .NET bugs... I see you've got a mix of UI clunkiness disrupting your React frontend and broken core features halting your .NET Core backend. I specialize in full-stack troubleshooting and will systematically stabilize your application. Here is my targeted execution plan: Frontend UI/UX Repair: Audit the React components, state management, and styles to patch visual glitches and restore smooth user interactions. Backend API Debugging: Trace your .NET Core endpoints, controller logic, and server logs to locate and permanently squash the functionality bugs. Integration & Verification: Test the complete end-to-end data flow between React and .NET to ensure everything works flawlessly under production conditions. I am ready to sync with you and jump into the codebase today. Quick technical question: Are you using Redux or Context API for state management on the React side, and do you have access to any specific error logs or stack traces from the .NET backend?