
In Progress
Posted
Paid on delivery
Project Title Fix Bugs, Add Validation and Improve Responsiveness in Existing MERN Stack Website Project Description I already have a MERN Stack portfolio website, and I am looking for an experienced developer to fix and improve the existing project. The website is already developed, so I do not need a new website built from scratch. The main focus is on identifying and fixing existing bugs, implementing proper form validation, and improving responsiveness across all devices. Required Tasks: Identify and fix existing frontend and backend bugs Add proper form validation and error messages Fix Contact Form functionality Ensure MongoDB data submission works correctly Improve website responsiveness for mobile, tablet, and desktop Fix UI issues such as alignment, spacing, overflow, and layout problems Test the website across modern browsers Fix any API integration issues Ensure all existing features work properly after changes Improve overall UI/UX without changing the core design Important: The source code is already available and will be provided to the selected freelancer. Please focus on debugging, validation, responsiveness, and improving the existing functionality rather than rebuilding the project. Expected Outcome: A bug-free, fully responsive, and properly validated MERN Stack portfolio website that works smoothly across desktop, tablet, and mobile devices.
Project ID: 40699150
62 proposals
Remote project
Active 4 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

Hi, I can help you debug and improve your existing MERN Stack portfolio without changing its core design. I have experience with React.js, Node.js, [login to view URL], MongoDB, REST APIs, form validation and responsive UI development. For this project, I can: • Identify and fix frontend/backend bugs • Fix the Contact Form and MongoDB data submission • Add proper form validation with clear error messages • Resolve API/integration issues • Improve mobile, tablet and desktop responsiveness • Fix alignment, spacing, overflow and UI issues • Test the existing features across modern browsers • Make sure the complete website works smoothly after the fixes I will first review the existing source code, identify the issues, fix them systematically, and then test the complete flow to ensure everything is working properly. I can start immediately and keep the existing design and functionality intact while improving its reliability and responsiveness. Looking forward to working with you.
₹600 INR in 2 days
0.0
0.0
62 freelancers are bidding on average ₹3,700 INR for this job

Hello, I can debug and improve your existing MERN portfolio without rebuilding the project or changing its core design. I’ll focus on: Identifying and fixing frontend/backend bugs React UI and API integration issues Contact form and MongoDB submission Proper client/server-side validation with clear error messages Responsive fixes for mobile, tablet, and desktop CSS issues including spacing, alignment, overflow, and layouts Node.js/Express API debugging Cross-browser testing Deliverable: a stable, validated, fully responsive MERN portfolio ready for deployment. I can start immediately once the source code is provided. Best regards ADEEL
₹1,050 INR in 7 days
8.2
8.2

Hi, I can fix and optimize your existing MERN portfolio without rebuilding the project. I’ll thoroughly debug the React frontend and Node/Express backend, fix the contact form and MongoDB submission, add proper validation and user-friendly error handling, resolve API issues, and improve responsiveness across mobile, tablet, and desktop. I’ll also test all existing functionality across modern browsers and fix UI issues such as spacing, alignment, overflow, and layout inconsistencies while preserving your current design. I’m ready to review the source code and start immediately. Best regards, Raheel
₹1,050 INR in 7 days
8.1
8.1

Hi, I can fix the existing frontend/backend bugs, contact form, MongoDB submission, API issues, and add proper form validation. I’ll also improve responsiveness and resolve alignment, spacing, and overflow issues without changing the current design. I have practical experience with React, Node.js, APIs, and responsive UI. Please share the source code and known issues—I can start immediately.
₹1,500 INR in 2 days
6.4
6.4

Hi there, I can quickly debug and refine your existing MERN stack portfolio without altering your core design. I will fix all layout, alignment, and responsiveness issues across mobile, tablet, and desktop, implement robust client and server-side form validation with clear error states, and ensure your contact form reliably submits data to MongoDB. Everything will be thoroughly tested across modern browsers to deliver a polished, error-free experience; ready to review the source code and start right away. Best regards, Nikhil Chandra Roy
₹1,050 INR in 7 days
6.4
6.4

Hi there, Since the portfolio is already built, I’d focus on finding the actual issues in the existing code rather than introducing unnecessary changes or rebuilding working parts. I can debug the React frontend and Node/Express backend, fix API and MongoDB issues, and improve the overall reliability of the current functionality. I’ll handle contact-form validation and error states, database submissions, API integrations, responsive layout issues, spacing, overflow, and browser compatibility. I’ll test the key user flows across desktop, tablet, and mobile to make sure fixes don’t introduce new problems. I’ll preserve the existing design and structure while making the site more stable, responsive, and easier to maintain. Send me the source code or a preview URL, and I can first review the project structure and identify the main issues before starting the fixes. Gurmeet
₹800 INR in 4 days
4.1
4.1

Hello, I would love to work on your project. I have solid experience in designing and developing modern, responsive, and high-performance websites that are visually appealing and optimized for speed, SEO, and user experience. I carefully read project requirements before starting and ensure every detail is implemented exactly as requested. Whether it's a landing page, business website, eCommerce store, bug fixing, Bootstrap, HTML, CSS, JavaScript, PHP, WordPress, or custom web development, I can deliver clean, scalable, and well-structured code. My priority is quality, timely delivery, and clear communication throughout the project. I provide regular progress updates and remain available for revisions until you are completely satisfied with the final result. I believe in building long-term relationships with clients by delivering reliable work and exceeding expectations. If required, I can also suggest improvements to enhance the design, performance, and overall user experience of your website. I am ready to start immediately and can dedicate my full attention to your project. Let's discuss your requirements in detail so I can provide the best solution within your budget and timeline. Thank you for considering my proposal. I look forward to working with you and delivering excellent results. Best Regards, Yashvendra Singh Full Stack Web Developer
₹1,050 INR in 2 days
4.2
4.2

My account here is new, but I bring 9+ years of development experience. I can fix your existing MERN portfolio’s forms, API issues, and responsive layouts while keeping its core design intact. At Ecube Labs, I built responsive React interfaces. I also worked with Node.js at Poundit, so I can trace issues from the browser through the backend. I’d start by reproducing the bugs and checking the contact form’s full path: React inputs, Express validation, and MongoDB writes. I’d add clear field errors, handle failed requests, and prevent duplicate submissions. Then I’d fix spacing, alignment, and overflow across mobile, tablet, and desktop, followed by browser checks and regression testing of existing features. Does the contact form need to send email as well as save submissions to MongoDB?
₹5,000 INR in 7 days
3.2
3.2

Hi-Abror Here From Uzbekistan. "Fix MERN Bugs And Responsiveness" - I’ll debug your existing MERN application using React, Node.js, Express, MongoDB, and responsive CSS improvements. I can trace frontend and backend bugs, repair contact submissions, validate forms, resolve MongoDB/API issues, and correct alignment, spacing, overflow, and responsive layouts. I will test every existing feature across modern browsers and mobile breakpoints, verify API responses and database persistence, then deliver the improved project without redesigning it. Can you share the current source code and a list of known bugs to prioritize the fixes? Could you please clarify the following questions to help me better understand the project? : 1. Which MERN components currently have the most urgent bugs? 2. Is the existing project deployed, and where is it hosted? 3. Are there any specific mobile browsers or screen sizes requiring priority? Looking forward to working with you.
₹15,000 INR in 7 days
3.2
3.2

As a seasoned web developer and consultant, I fully understand the importance of debugging, validating, and enhancing an existing project. Throughout my 10+ years of experience in building impactful web and mobile applications, I have consistently delivered optimized, responsive, and bug-free websites much like what you desire for your MERN stack portfolio site. My proficiency in Node.js, React.js, MongoDB, among other crucial tools for your project gives me the ability to swiftly identify and resolve frontend and backend bugs. Moreover, my broad experience utilizing proper form validation techniques and executing comprehensive testing over multi-channel compatibility will enhance your site's user-friendliness across all devices. Not only do I have a solid foundation in web development frameworks, but I'm also adept at creating positive_user experiences—whether it's fixing UI issues or improving overall responsiveness. Rest assured, I'll never compromise the core design of your website but rather enhance its performance to meet modern-day needs. Choose me for this project and you're selecting a developer that prioritizes quality work_done on time and within budget. Let us transform your website into a sleek online presence that you can confidently display across every screen size.
₹1,050 INR in 7 days
2.9
2.9

Hi, I can debug and improve your existing MERN Stack portfolio without changing its core design. I’ll fix frontend/backend bugs, contact form and MongoDB submission issues, API problems, proper form validation with error handling, and responsive UI issues across mobile, tablet, and desktop. I’ll also test the complete website across modern browsers and ensure existing features continue working correctly.
₹2,000 INR in 1 day
2.2
2.2

Hi, I can professionally debug and improve your existing MERN Stack portfolio without changing its core design or rebuilding it from scratch. I’ll review the current frontend, backend, APIs, MongoDB integration, and contact form to identify and resolve existing issues. I’ll also implement proper form validation with clear error handling, fix UI/layout problems, improve responsiveness across mobile, tablet, and desktop, and address any API or data-submission issues. After the fixes, I’ll test the complete website across modern browsers and different screen sizes to ensure all existing features work reliably. I’ll work directly with your existing source code and keep the changes clean, maintainable, and focused on stability, usability, and performance. Thanks Kuldeep
₹1,500 INR in 3 days
2.3
2.3

Hi, I can debug and improve your existing MERN portfolio without rebuilding the project. I’ll fix the current frontend and backend bugs and make sure all existing features work properly. I’ll also add proper form validation, clear error messages, and fix the Contact Form and MongoDB submission. The website will be checked across mobile, tablet, and desktop for spacing, alignment, overflow, and layout issues. I’ll review API integrations and fix any issues affecting the current functionality. I’ll test the updated site across modern browsers before delivery. The core design will stay the same while improving the overall UI/UX and responsiveness. I can share relevant MERN debugging and responsive website samples from my portfolio. Are you available for a quick chat?
₹1,050 INR in 7 days
2.2
2.2

As a seasoned developer with over 6 years of hands-on experience and 140+ successful projects completed, I am confident that I am the right person to fix, enhance, and beef up your existing MERN Stack portfolio website. My proficiency spans HTML, Node.js, and React.js - all the skills you need for this project. Furthermore in buttonTexttagNameuring the entire task, a major emphasis will be placed on adding proper form validation alongside impeccable error messages; tackling significant issues like the Contact Form functionality and ensuring MongoDB data submission works flawlessly. I'll also test the website on various modern browsers to ensure its cross-browser compatibility while analyzing any API integration issues that might arise_and remedying them effectively. One thing you can expect is a thoroughly revamped MERN Stack portfolio site; bug-free, fully responsive, properly validated and equipped with exceptional UI/UX. Clients choose me because I'm meticulous yet timely in my deliveries; with me you can expect clean execution within set deadlines. Let's overhaul your website together and reach out to your target audience more seamlessly_than ever before.
₹1,050 INR in 7 days
1.5
1.5

Hi, We can help debug and improve your existing MERN portfolio website without rebuilding the project from scratch. The work can include resolving the frontend and backend issues, improving form validation, fixing MongoDB submissions and API functionality, and making sure the site responds properly across mobile, tablet and desktop. We can also clean up the current UI issues around spacing, alignment and overflow, test the site across modern browsers, and make sure the existing functionality remains stable after the fixes. Kind regards, Maximillion Onico Digital
₹2,000 INR in 7 days
1.6
1.6

Hi, I hope you’re having a wonderful day. Thank you for sharing your job opportunity. I have carefully read your requirements and I would be happy to help you complete this task with dedication and high-quality results. I always focus on delivering work that meets my client’s expectations while maintaining good communication, reliability, and attention to detail. I am available to provide support throughout the project and ensure everything is completed smoothly and on time. I would truly appreciate the chance to work with you and contribute my skills to your project. I look forward to the opportunity to collaborate and create great results together. Thank you so much for your consideration.
₹1,050 INR in 2 days
0.0
0.0

Hi, I can work directly with your existing MERN codebase and focus on fixing the current issues without unnecessarily rebuilding anything. I’ll first review the React, Node/Express, MongoDB, and API flow to identify the actual causes of the bugs. Then I’ll fix the contact form and database submission, add proper validation and error handling, and resolve responsive UI issues such as spacing, alignment, overflow, and mobile layouts. I’ll also test the existing features across common screen sizes and modern browsers to make sure the fixes don’t introduce new problems. The goal is to keep your current design while leaving you with a stable, responsive, and easier-to-maintain website. Please share the source code and current known issues, and I can start with a quick review. Best regards, Catherine
₹1,050 INR in 7 days
0.0
0.0

I can fix your all bug regarding the mern stack if you are ok with me then you can connect with me
₹1,000 INR in 1 day
0.0
0.0

I can start with a reproducible bug audit and working contact-form fix within the first 24 hours. I will run the existing MERN project locally, trace frontend validation through the Express API and MongoDB write, and document each confirmed defect before changing behavior. The implementation pass will add client and server-side validation, clear error states, reliable submission handling, and regression checks for the affected API paths. I will then test responsive layout at mobile, tablet, and desktop widths, fix alignment/overflow/spacing issues without redesigning the site, and verify current Chromium/Firefox behavior. Deliverables: focused source changes, concise issue/fix log, validation and API test evidence, responsive screenshots, and setup/run notes. INR 1,500 and 2 days covers the existing portfolio site's listed fixes, assuming the repository runs with supplied environment values and does not require third-party paid-service repair. Any larger hidden feature work will be identified before proceeding rather than silently expanding scope.
₹1,500 INR in 2 days
0.0
0.0

Hi, I went through the project details and can help fix the bugs, add proper validation, and improve responsiveness across your MERN portfolio site. My approach: Review the existing codebase and map out frontend/backend bugs plus current validation gaps Fix the Contact Form and confirm MongoDB submissions save correctly, testing each field and edge case Resolve API integration issues with proper error handling Fix layout issues (alignment, spacing, overflow) and rework breakpoints so it's properly responsive on mobile, tablet, and desktop Cross-browser test on Chrome, Firefox, Edge, and Safari before handoff I've built React/Node/Tailwind-based apps before, including a full logistics management dashboard and a finance tracking app, so I'm comfortable working carefully inside an existing codebase without breaking what already works. Could you share the repo or a staging link, and let me know which bugs are highest priority for you? Happy to get started right away and deliver within the 7-day window.
₹1,050 INR in 7 days
0.0
0.0

Hi, your project is a good fit for my strongest area: React/JavaScript frontend debugging, validation, responsive/mobile fixes and QA. I can start by reproducing the current bugs, fixing form validation and UI/responsive issues, then trace the existing Contact Form/API/MongoDB submission flow and correct straightforward integration problems without rebuilding the application. I’ll test the result across mobile, tablet, desktop and modern browsers, and regression-check the existing features after each fix. My main expertise is frontend + functional QA; if I find a deeper backend architecture issue beyond a focused Express/Mongo fix, I’ll flag it clearly before changing anything. I can deliver a clean, documented fix pass in about 2 days.
₹1,500 INR in 2 days
0.0
0.0

New Delhi, India
Payment method verified
Member since Sep 8, 2026
₹1500-12500 INR
₹1500-12500 INR
₹1500-12500 INR
₹600-1500 INR
$30-250 USD
₹1500-12500 INR
£750-1500 GBP
$10-30 USD
$30-250 CAD
$30-250 USD
$250-750 USD
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
$10-12 USD
₹600-1500 INR
$750-1500 USD
$2-8 USD / hour
$30-40 USD
₹750-1250 INR / hour