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We are building a web application where users can upload PDF files into folders and manage them. The project is mostly developed (frontend and backend are already in place), but it is currently not working end-to-end due to deployment and integration issues. The main requirement is to fix the existing system and make the complete flow work properly in production. This includes ensuring that the backend API is correctly deployed, all routes are active, and the file upload functionality works as expected. The expected working flow is: User uploads a file → file is stored on the server → file details are saved in the database → API returns a proper response → file appears in the frontend UI → file remains available after refresh. In addition to fixing the upload flow, the system should be stabilised so that there are no broken states, loading issues, or API mismatches between frontend and backend. Once the upload flow is fixed, the next requirement is to implement a basic document viewer so that users can open and view the uploaded PDF files within the application. We are not building from scratch. The project is already developed to a large extent, so the task is mainly to understand the existing codebase, fix deployment issues, complete the integration, and ensure the system works smoothly on the live server. We are looking for someone who can take ownership of the project, quickly identify the issues, and deliver a stable and fully working solution.
Project ID: 40363663
45 proposals
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Active 4 days ago
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45 freelancers are bidding on average ₹1,835 INR for this job

Hello I have several years of experience with both Web development and PDF processing. There are some questions about your project requirements, when can I contact to discuss? Thanks
₹1,155 INR in 1 day
7.1
7.1

Hi, how are you? I have strong experience in fixing and deploying existing web applications, including resolving backend API issues, file upload flows, and frontend-backend integration. I can quickly analyze your current system, fix the deployment problems, and ensure the complete upload flow works smoothly in production. I can also implement a PDF viewer so users can open and view documents within the application, while stabilizing the system to avoid any broken states or API mismatches. Please feel free to message me for further details. Thank you.
₹2,000 INR in 2 days
6.1
6.1

As an experienced web developer with a strong command of API development and database management, I'm more than capable of ironing out the existing deployment and integration issues in your PDF management web application. My proficiency in JavaScript, PHP, and other relevant languages will prove invaluable in ensuring a smooth flow from file upload through database storage to a proper frontend display. I've previously delivered projects that encompassed similar requirements; this not only helped me develop an intuitive understanding of the architecture behind such applications but also taught me how to identify specific areas that need fixes or enhancement. Lastly, my availability on a 7-days-a-week basis allows me to dedicate myself entirely to meeting project deadlines effectively. I take tremendous pride in maintaining an excellent reputation throughout my career just as Prajapati Technologies places utmost value on our clients - you. Choose me for your finalization needs, and let's bring stability and success to your already impressive project.
₹19,000 INR in 15 days
6.4
6.4

Drawing from over 13 years of full-stack development experience, I have honed my skills in PHP and its frameworks. My extensive knowledge of backend and API development has uniquely positioned me to solve your current challenges in the deployment and integration phase of your PDF management web application. In the past, I have successfully designed, developed, and delivered complex systems with robust APIs, ensuring seamless frontend-backend interactions. I understand that the main ask for this project is to stabilize and enhance the existing flow to ensure proper functioning post-deployment. My approach emphasizes taking ownership of the project -- fully understanding the existing codebase, identifying any lurking issues, and devising effective solutions. It’s worth mentioning that my competence also extends to deploying solutions on live servers -- guaranteeing stability and zero broken states. Furthermore, my familiarity with React.js will be an asset when you wish to implement the document viewer functionalities. My dedication to following industry-proven best practices such as MVC principles, DRY code patterns, and PSR-12 standards adds a level of discipline that ensures not just immediate fixes but long-term maintainability as well. Let’s work together to turn your application into a smooth-running success story!
₹1,050 INR in 7 days
6.7
6.7

Hello, I will professionally fix and stabilize your existing PDF upload system to ensure a smooth end-to-end working flow in production. With 5+ years of experience in full-stack development and debugging MERN-based applications, I’ve resolved similar deployment and integration issues efficiently. What I will handle for you: • Fix backend deployment, API routes, and complete file upload flow • Resolve frontend-backend integration issues and ensure stable performance • Implement PDF viewer and ensure files persist and display correctly I am ready to take ownership, quickly identify issues, and deliver a fully working, stable system. Warm regards, Monica Bhatia
₹1,500 INR in 3 days
5.1
5.1

As a seasoned Full-Stack Developer with an impressive 10+ years of experience, I'm no stranger to the ins and outs of deploying and integrating web applications like your PDF management system. Comfortable with technologies such as JavaScript, MySQL, and PHP, I am adept at understanding complex codebases to identify issues and provide lasting solutions. With me on board, you can rest easy knowing that your system will not just function smoothly but be fully compatible end-to-end. Besides addressing existing glitches, I'll bring in my expert capabilities in secure authentication & authorization and performance optimization to ensure your system is stable and avoids any broken states or loading issues. Most importantly, I prioritize clean, scalable, and maintainable code. This means no matter how large or complex your project gets in the future, you'll always have solid foundations to build on. Lastly, communication is key! And clear communication is my commitment to you. Expect regular updates on the project progress along with transparency on any unforeseen challenges or adjustments. Ultimately, partnering with me for this final leg of your application development journey is essentially putting your vision into capable hands and ensuring a successful completion!
₹1,050 INR in 7 days
4.5
4.5

I can get your PDF management system production-ready immediately. I’m an individual developer, so you’ll work directly with the person fixing the code—no agency delays or communication gaps. I specialize in troubleshooting full-stack integration and will quickly resolve your backend routing and file storage bottlenecks. I’ll stabilize the entire flow—from upload to database persistence—and implement a seamless PDF viewer as requested. Since I handle my own DevOps, I’ll ensure your production environment is stable and easy to maintain. I'm ready to audit the codebase and get the first fix live today. Let’s get this finished.
₹3,000 INR in 1 day
4.5
4.5

Greetings, I am a full-stack developer with 13 years of experience fixing, stabilizing, and deploying partially built web applications into production-ready systems. Skills: PHP, JavaScript, MySQL, REST APIs, deployment/debugging, frontend-backend integration, file handling, and performance optimization. Approach: I will audit your existing codebase, fix deployment/configuration issues, and ensure the complete upload flow works seamlessly (upload → storage → DB → API → UI). I’ll resolve API mismatches, loading issues, and broken states, then implement a secure in-app PDF viewer for smooth document access. Deliverables: Fully working upload system, stable API integration, PDF viewer, and production-ready deployment. Why hire me: Fast debugging, clean fixes, and reliable delivery. Let’s collaborate.
₹1,450 INR in 7 days
4.6
4.6

Hello Already have something live to show you I am professional mobile software engineer with skills including Web Design, PHP, Website Development, Content Writing, Elementor, HTML, WordPress and Website Design. Please send a message to discuss more about this project. Always happy to hear from you Thanks
₹1,050 INR in 7 days
4.6
4.6

Hi, I can take this over and finish the existing PDF management app without rebuilding it from scratch. From your description, the core work is to trace the current frontend/backend flow, fix the production deployment and API integration issues, restore stable PDF upload behavior, and then add a basic in-app PDF viewer. I’m comfortable working through exactly this kind of “mostly built, not working end-to-end” project. My approach would be: - verify backend deployment, routes, env/config, and database/file storage behavior - fix the upload flow end-to-end so files save correctly, metadata persists, API responses match the frontend, and uploaded PDFs remain visible after refresh - remove broken loading/error states and resolve frontend/backend mismatches - implement a simple PDF viewer for uploaded files inside the app - test the live workflow carefully so the system is stable in production I’ve worked on production web apps involving backend APIs, admin panels, storage flows, and integration debugging, so I can move quickly once I review the current setup. One thing I’d want to confirm at the start: is the project already deployed on a live server with code and database access available?
₹2,500 INR in 2 days
3.9
3.9

Hi, I'm a full-stack developer with 8+ years building PDF management web applications. Excited to help with the finalization of your PDF Management Web App! I'll deliver: Final bug fixes & polishing Clean UI/UX improvements PDF upload, view, edit, merge, split, download & search functionality Secure storage & user management Responsive design + fast performance Complete testing & deployment readiness Can we discuss the current status, pending tasks, or specific areas that need finalization? Ready to start immediately! Best regards, Kamal
₹1,050 INR in 1 day
3.6
3.6

Based on my experience and skills in API development, backend and frontend development, database management, JavaScript and PHP, my freelance agency, Paper Perfect, is well-equipped to fulfill the outstanding needs of your PDF management web application. We value the uniqueness of every project and offer tailored solutions that are visually appealing, robust and scalable, ensuring a perfect fit for your specific requirements. Our team prides itself on delivering exceptional results - on time and within budget. We live up to our name by creating intuitive and user-friendly applications such as yours using the latest frameworks like React, Angular, Node.js, among others. Our primary aim is to bring your vision to life with precision and efficiency. In tackling your project we would start by diving deep into your already developed codebase to understand its intricacies. We will rapidly identify the issues at hand and deliver a fully functional solution that resolves all deployment concerns while stabilizing the system for optimal performance. Additionally, we will develop a powerful document viewer that enables easy access to all uploaded PDF documents within the application. With us at helm of this project you can be confident in our ability to take ownership of it and usher it into a state of seamless functioning on the live server.
₹1,050 INR in 7 days
3.7
3.7

I can take ownership of your existing application and quickly debug, fix deployment issues, and stabilize the end-to-end PDF upload flow. Relevant Experience I have strong experience with Java/Spring Boot backends, REST APIs, file upload systems, and frontend-backend integrations, along with deploying and stabilizing production applications. Approach Analyze current codebase (frontend + backend + deployment setup) Fix API routing, CORS, and environment/config issues Ensure complete upload flow: Upload → Store file → Save metadata → API response → UI display → persistence after refresh Debug broken states, loading issues, and API mismatches Validate on production environment Additional Feature Implement in-app PDF viewer (secure, fast rendering) Deliverables Fully working upload flow in production Stable APIs and frontend integration PDF viewer integration Clean fixes with minimal disruption to existing code Assurance Quick issue identification and resolution Focus on stability, performance, and maintainability Clear communication and ownership I specialize in fixing and completing partially built systems, ensuring they are production-ready and reliable. Ready to start immediately and get your system working end-to-end.
₹1,050 INR in 7 days
3.8
3.8

Hello I have reviewed your project requirements and understand that you already have a largely developed web application, but it’s currently facing deployment and integration issues that prevent the system from functioning end-to-end. I can help you quickly stabilize and complete the application by identifying and fixing the root causes in your current setup. My focus will be on making the system production-ready, stable, and reliable without rebuilding what already exists. ##**My approach would be**: --> Analyze the existing frontend and backend architecture --> Fix deployment and API integration issues --> Ensure all backend routes are active and properly connected --> Debug and restore the complete file upload flow (upload → storage → database → API response → UI rendering) --> Resolve any broken states, loading inconsistencies, or API mismatches --> Implement a clean and functional PDF document viewer within the app I’m comfortable taking ownership of partially completed projects and turning them into fully working solutions within a short timeframe. **I am willing to have a quick call to discuss all the requirements in details to be on the same page So I can provide you with an effective solution from my side** Best Regards Abhishek
₹1,200 INR in 7 days
1.5
1.5

Hello, What tech stack are you using for frontend, backend, and storage? I have 6 years of experience in full-stack web development and deployment, and I can help you stabilize and complete your existing PDF management system. I understand you already have the frontend and backend built, and the main issue is end-to-end integration and production deployment. I will focus on fixing the complete flow: user PDF upload, server storage, database entry, correct API response, frontend rendering, and persistent file access after refresh. I will also debug deployment issues, ensure all backend routes are properly active, resolve API mismatches, and eliminate broken states or loading inconsistencies between frontend and backend. Once the system is stable, I will implement a simple in-app PDF document viewer so users can open and read uploaded files smoothly. Questions: Where is the application currently deployed? Are you using cloud storage (AWS/S3) or local server storage? -Please come on chat for further discussion. Looking forward to fixing and delivering a fully working, stable system. Best Regards,
₹1,050 INR in 7 days
0.7
0.7

have solid experience in web and mobile development — I know exactly what this project requires and how to execute it the right way. On-time. Clean code. No complications.
₹1,050 INR in 7 days
0.0
0.0

Let me get it done, I'll diagnose your existing deployment and integration issues to restore the end-to-end PDF upload flow and ensure seamless communication between your frontend and backend services. Your project will be finished in 1 week, I have built similar websites before when working for web development agencies. Here is how I would approach it: 1. I can do a free demo if needed. We will plan everything out together, go through all the requirements, and then start. 2. Review the current production environment logs to identify specific API mismatches or blocked routes. 3. Fix the server-side file handling and database persistence logic to guarantee files are correctly stored and retrieved. 4. Stabilize the state management between the frontend and backend to eliminate loading issues and broken states. 5. Integrate a reliable PDF viewer component so users can open and interact with their uploaded documents directly in the UI. Let's talk as soon as possible and get it done. Best Regards, Mihajlo
₹1,050 INR in 40 days
0.0
0.0

Hi, I understand the task and will ensure your expectations are me. I am an expert with 4 years of experience in PHP, JavaScript, MySQL, Web Development, Backend Development, Frontend Development, API Development. See my profile for recent work. Please connect in chat so we can discuss. Best regards, Syeda Tahreem
₹1,050 INR in 7 days
0.0
0.0

Hello, I would like to work with you on a fully independent basis and take complete ownership of stabilising and fixing your application. This is exactly the kind of work I handle-stepping into partially built systems, identifying where things break between frontend, backend, and deployment, and making the entire flow work reliably in production. I’ll start by auditing your current setup (API routes, server config, environment variables, storage paths, and DB connections) to identify why the upload flow is failing. Then I’ll fix the full pipeline - file upload - storage - database entry - API response - frontend rendering ensuring it works consistently even after refresh. I’ll also resolve integration gaps (API mismatches, CORS, incorrect endpoints, async handling issues) and eliminate broken states or loading failures so the system feels stable end-to-end. Once the core flow is solid, I’ll implement a clean in-app PDF viewer so users can open and view documents seamlessly without leaving the platform. The focus will be on making your existing system production-ready, not rewriting it clean fixes, proper deployment, and long-term stability. Rakesh Yadav
₹2,000 INR in 7 days
0.0
0.0

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Mayank Sahu
₹1,050 INR in 7 days
0.1
0.1

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