Small Web App Bug Fix & Feature Update

@raphaelokekeze

I see you need a quick fix and a feature update for your web application. Dealing with bugs in an existing codebase is a daily part of my workflow, and I can step in to debug and implement the requested changes without needing extensive onboarding. With over 15 years of experience in web development, I am well-versed in the core technologies required for this, including JavaScript, CSS, and HTML5. My background involves heavy troubleshooting and custom coding, which allows me to resolve logic issues and add new features efficiently while ensuring the rest of the application remains stable. I have set my bid at $17.60 for this work and can complete it within 1 day. Send me a message with the source code or access to the app, and I will get started on these fixes immediately.

@extreamcode

Hi, I can see the real issue here: this isn’t just a UI bug, it’s a state-sync problem between your React profile form and the Express API, which is why the profile updates look saved but don’t reliably come back after reload. I’ve fixed similar React/Node flows by tracing the full path from form state, request payload, API validation, and persistence, then tightening the reload logic so the UI reflects the server truth every time. I’ll inspect the current profile update flow, identify where the state or API response is breaking, then patch both sides cleanly while keeping your lint rules and existing structure intact. I’ll also add a simple dark-mode toggle that fits naturally into the current layout, wire it into React state so it switches instantly without reloads, and make a light pass on desktop/mobile responsiveness to keep the UI stable. 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. I can return this with a concise changelog and local run notes within 1-2 days. Should the profile data persist via a single existing endpoint, or do you want me to add any API-side validation/error handling improvements while fixing the save flow? Thanks, Asad

@giaphung2k1

Hello Hi there, I understand you need to get your React and Node.js web app up and running smoothly. With my 5+ years of full-stack experience, I specialize in ensuring these applications are robust and performant. I can help you launch your app efficiently and avoid common pitfalls. Let's connect to discuss your project specifics and get you launched Giáp Văn Hưng

@anirudhat

Hey, I've dealt with profile persistence bugs like this many times—it's usually a state sync issue where the frontend isn't correctly awaiting the API response before updating local state, or the Express route isn't sending back the updated document after the write. I'll trace the full save flow from the React form submission through the API endpoint, pinpoint where the data drops, and fix both layers so updates persist reliably on reload. For dark mode, I'll implement a context-based toggle using React's useContext and CSS custom properties, ensuring instant theme switching without any flicker or page reload. I'll also run through standard breakpoints (1440px, 1024px, 768px, 375px) and apply any responsive tweaks needed. I'm available to start immediately and I'm very comfortable with your exact stack—React hooks, Express REST APIs, and mixed CSS-in-JS/plain CSS codebases.

@jayantkumar314

I can handle this quickly. I have hands-on experience with React functional components, hooks, Node.js/Express APIs, frontend state debugging, UI enhancements, and responsive fixes. I can trace and fix the profile persistence issue across both frontend and backend, implement a clean dark-mode toggle that fits naturally into your existing UI/state flow, and make responsive refinements across desktop/mobile without disrupting the current design. I’ll deliver clean code, concise change documentation, and a ready-to-run updated project that follows your existing structure and linting standards.

@ambientinfotech

Hello, I hope you are doing well. With 8 years of experience as a Server Administrator, I have extensive knowledge of various server technologies, troubleshooting techniques, and performance optimization. I can analyze and resolve any server-related issues efficiently based on your requirements. Please feel free to reach out if you have any queries or need assistance with server management. I’d be happy to help. Best regards,

@toriquldev123

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam

@AnumFatima210

Hello, I came across your Small Web App Bug Fix & Feature Update and I am very interested in working with you. I have reviewed your requirements and full understand the scope of expectations. I specialize in CSS, Web Development, and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity and professionalism. I work transparently throughout the project progress, deadlines and expectation stay clear at every stage. I would be glad to disucss further details and am ready to start immediately. Looking forward to hearing from you. Regards. Anum

@eaglegraphics247

I hope you're doing well! My name is Nawal, and I bring over nine years of experience in Small Web App Bug Fix & Feature Update. After carefully reviewing your project brief, I’m confident that I understand your needs and can deliver exactly what you're looking for. Here’s what I offer: ✅ Multiple initial drafts within 24 to 48 hours ✅ Unlimited revisions until you're 100% satisfied ✅ Final delivery in all required formats, including the editable master file and full copyright ownership You can check out my portfolio and past work here: ? Freelancer Profile – eaglegraphics247 I’d love to discuss your project further and explore how we can make your vision a reality. Let me know a convenient time for a quick chat! Looking forward to working together. Best regards, Nawal

@techsty2014

Hi, We will fix the profile persistence bug and add a dark-mode toggle to your React and Express app. For the profile issue, we will trace the state update through your hooks and the Express route to find where the payload drops. Common culprits: stale state after the API call or a missing response handler. A couple of quick things to confirm: 1) Are you using Context, Redux, or Zustand for state? 2) Is the Express API connected to a database or a flat file? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Send me a message and we can go over the details. Best regards, Faizan

@albertc1996

Hi, your React/Express app needs the profile save flow fixed end-to-end, plus a clean dark-mode toggle. I’ll trace the profile update path from React hooks/state through the API request, Express route, validation, and persistence layer, then make sure saved data reloads correctly after refresh. For dark mode, I’ll add a lightweight toggle using the existing state/style setup, without forcing a page reload or disturbing current layouts. I recently fixed a similar React/Node state-sync issue where profile updates failed silently, reducing repeat save errors to zero after testing. Available to fix this quickly, with clear markdown notes and run commands included. Quick question: is profile data stored in a database, JSON file, or memory/session? Best regards.

@engruhulajom

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom

@graphicsexpert07

I can quickly fix the profile persistence issue in your React + Node/Express app, implement a clean dark-mode toggle, and handle responsive refinements while keeping the existing codebase structure and linting standards intact. I’m comfortable working with React hooks, Express APIs, state management, CSS-in-JS, and debugging frontend/backend sync issues to ensure reliable save/reload behavior. You’ll receive the updated project, clean documented changes, and setup instructions for local testing.

@Zeemeeservices

Hello, With my vast experience in full stack development and proven expertise in React and Node.js, I believe I am the ideal fit for your project. I pride myself in being a meticulous developer with a keen eye for detail, ensuring that even the most minute details are addressed for seamless functionality. My proficiency in both frontend and backend web development will prove invaluable in resolving the bug on your user-profile screen persisting issue, as well as integrating the dark-mode toggle effortlessly into your existing UI. My knowledge of CSS-in-JS will facilitate an organized switch with clean page reloads - maintaining layout integrity while answering your mobile responsiveness needs. Moreover, my extensive familiarity with various breakpoints across desktop and mobile widths assures you that everything will look and behave correctly after the tweaks. My versatile skills including Databases & Caching (PostgreSQL, MySQL), Performance & Scalability (distributed systems) among others will ensure your app is efficient and able to scale under production workloads. Rest assured that I'll provide a thorough change log to outline all modifications made-my code readable and comprehensible even for those not directly involved in the project. In conclusion, by choosing me, you're getting a seasoned professional committed to delivering impactful results that elevate your app's performance and usability! Thanks! Chibike

@carlosd178

Hello, As a result of a detailed review of your project requirements, I fully understand the scope and expectations. I have experience debugging React + Node.js/Express applications, fixing frontend/backend state persistence issues, and adding clean UI improvements, and I’m available to start your project right now. I bring strong expertise in React, Node.js, Express REST APIs, JavaScript, CSS, frontend debugging, backend development, and responsive UI fixes. One of the key challenges in projects like this is tracing whether the profile update issue comes from React state handling, API payload mismatch, backend validation, or reload/fetch logic. I can inspect the full flow, fix the persistence bug properly on both sides, add a simple dark-mode toggle without reloads, and make responsive adjustments so the app behaves cleanly across desktop and mobile. I will also provide a brief changelog with touched files, setup/run notes, and any environment variables needed so you can verify it easily with npm install && npm start. I have a couple of quick questions. • Is the profile data stored in a database, JSON file, or in-memory backend state? • Does the current app already use Context/Redux, or only component-level React state? I would be glad to review the repo and start immediately. Best regards, Carlos

@Areeba514

Could you provide access to the repo with the current user-profile screen? It sounds like the data isn’t updating in the frontend state or the API, which I can definitely fix. For the dark-mode toggle, I’ll seamlessly integrate it into the React state management and ensure smooth style transitions. I’ll also carry out responsive checks to fine-tune any necessary layout adjustments without compromising the design. With over 5 years of experience with React, Node.js, and CSS, I will deliver an updated repo with thorough documentation on changes made. I’ll ensure that the code is clean and well-commented according to your lint rules. Looking forward to helping you with these improvements!

@GridsmithLTD

Hello, I've reviewed your project and understand you're looking for targeted improvements to your React and Node.js application including fixing profile persistence issues, integrating a clean dark mode system, and tightening responsive behavior across desktop and mobile breakpoints. This kind of work is usually less about adding features and more about tracing state flow and API consistency carefully. Profile persistence bugs often come from mismatched payload handling, stale frontend state, or incomplete backend update logic, so the important part is fixing the root cause cleanly rather than patching symptoms. I can help stabilize the data flow, integrate a maintainable dark mode toggle, and keep the existing codebase readable and aligned with your current structure. Portfolio: https://www.freelancer.com/u/GridsmithLTD Is the profile data currently managed through local component state only, or are you already using a global state solution or context layer in the React app? Regards, Atik

@johnhygh

Hello Sir, As a seasoned full-stack developer and seasoned pro at handling diverse tech stacks including the ones in your project, you can trust my skills and experience to make your app better. I boast 9+ years in the field delivering high-performance applications from development, to deployment, to maintenance and I do it all with one thing in mind: scalability without compromising user experience. Your project requires deep knowledge of Javascript, React (functional components, hooks), Node.js/Express REST API, CSS-in-JS and plain CSS which I have proficiently mastered over my career. I'll identify and fix the bug affecting user profile updates on both the frontend state layer and the Express API, ensuring data is consistently persisted and reloaded upon reloads. Next, I will incorporate a slick dark mode toggle that complements your UI without causing page-reloads, making sure it stays within the bounds of your current state management for smooth functionality. Finally, I’ll run comprehensive cross-device tests to fine-tune the UI to work perfectly on popular desktops and mobile widths without tampering with existing layouts. Equipped with strong DevOps skills as well, I always emphasize maintainability, performance-enhancement while fostering long-term growth for every project I handle. This means not only delivering what you need right now but also setting up an environment that can adapt to your growing needs. From start to fi Thanks! John

@smitk9999

Hello, I can fix the React and Node.js profile update bug, add a clean dark-mode toggle, and handle responsive checks. The profile issue is likely a mismatch between frontend state, API update payload, or the reload response from Express. I’ll trace the save flow, fix the API and React state so updates persist, then confirm the saved data reloads correctly. I’ll also add dark mode using the existing styling approach, keep it switching without reloads, and make light responsive tweaks for desktop and mobile. Code will stay readable and follow your lint rules. I’m ready to start and can provide a short changelog with files touched and local run steps. Can you share the repo access or zip and any current .env values needed to run it? Best, Smit