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I want to tighten up two core parts of our platform: the public-facing website and the logged-in client portal. The most urgent task is to link our existing payment page correctly, wiring it to the payment gateway that is already live so that transactions flow, callbacks are handled, and success/failure messaging lands in the right place. Alongside that, the portal needs a clean document-management flow. Clients should be able to upload, preview, download, and delete files from a tidy dashboard with role-based access. The code must be performant, the UI consistent with the rest of the site, and everything secured to best practice standards. Because our product uses a large-language-model layer to surface knowledge to users, experience calling OpenAI (or comparable) APIs and displaying the responses inside a web app will help you move quickly. If you can suggest caching or prompt-tuning tricks to speed things up, all the better. Deliverables • Fully functional payment page tied to our existing gateway, tested end-to-end • Document-management module inside the portal, styled and permissioned • Any LLM integration touch-ups required for smooth UX • Clear deployment steps or pull-request notes so my team can review and merge
Projekt-ID: 40058818
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60 Freelancer bieten im Durchschnitt ₹24.916 INR für diesen Auftrag

can you please discuss on chat
₹28.500 INR in 12 Tagen
7,8
7,8

Hello, I can help you stabilise and elevate both your public website and the client portal by delivering clean integrations, secure workflows, and a consistent UI. My first focus will be fixing the payment flow—connecting your existing payment page to the live gateway, ensuring transactions process correctly, callbacks are handled, and success/failure states display reliably across the app. Next, I’ll build a streamlined document-management module inside the portal: upload, preview, download, and delete actions, all behind role-based access and aligned with your existing design system. Performance, security, and a smooth UX will guide the implementation. Given your platform’s use of an LLM layer, I can also refine your OpenAI (or equivalent) integration—improving response handling, adding light caching, and tightening prompts where needed for faster, more reliable outputs. + Deliverables • Fully wired, tested end-to-end payment page • Document-management system with permissions and consistent UI • LLM integration improvements for speed and clarity • Clear deployment notes or PR documentation for easy review I can start immediately and will maintain transparent communication throughout to keep progress aligned with your team. Let’s discuss your current codebase and timeline.
₹25.000 INR in 7 Tagen
8,4
8,4

As an experienced full stack software engineer, I'm confident that I can provide the optimized website and portal functions you're looking for. My 10+ years in the field has given me ample opportunity to hone my skills in multiple areas, including WordPress, Shopify, Woo-commerce, and more. Regarding your project's urgent task of integrating and wiring your payment page to the existing gateway, this is an area where I excel. I have worked extensively with payment gateways on various platforms and can ensure smooth transaction flow and accurate messaging delivery. For the client portal's document management module, not only am I highly proficient with PHP and Laravel as you need, but I also have a passion for building and scaling technology products. I understand not just the code but also how it translates into a functional user experience. This mindset informs my detail-oriented approach to deliverables, so you can trust me to create a dashboard that streamlines every aspect of document management with role-based access. Moreover, I noted your requirement of LLM integration and any needed prompt-tuning tricks for better speed performance. My familiarity with technologies like OpenAI or comparable APIs positions me well in such tasks. If chosen, rest assured that I'll leave no stone unturned to enhance the project's performance in alignment with all security protocols.
₹25.000 INR in 10 Tagen
7,2
7,2

Hi may I know detail about this website? I am looking forward to discussing this work with you regards saju
₹25.000 INR in 7 Tagen
7,0
7,0

I am an expert in Shopify, WordPress, and Web Development Technologies with the ability to start RIGHT AWAY. I propose to tighten up your platform by linking the payment page and enhancing the document-management flow. I have experience with OpenAI APIs and can ensure secure, performant, and stylish deliverables. Regards, Pooja
₹25.000 INR in 3 Tagen
7,0
7,0

As a top-rated WordPress developer, my team and I have spent over a decade honing our skills in website development and design, making us the perfect fit for your project. We're well-versed in HTML, JavaScript, payment gateway integration, PHP, and several other tools important for optimizing online platforms. We understand the urgency of linking payment pages flawlessly and will meticulously wire them to your existing payment gateway to ensure seamless transaction flows and accurate messaging.
₹21.500 INR in 7 Tagen
6,3
6,3

Hello, I can help you improve both your public website and your client portal by fixing the payment flow and building a smooth, secure document-management module. I will connect your existing payment page to the live gateway so transactions work end-to-end, including callbacks and success/failure messages. In the client portal, I’ll create a clean dashboard where users can upload, preview, download, and delete documents with proper role-based access. I have worked with OpenAI and other LLM APIs, so I can also refine the existing AI features for faster and smoother responses. Everything will be styled to match your current UI and built with secure, modern code. I have 20+ years of experience and a strong team, so you will get high-quality work delivered on time. Once done, I’ll share clear deployment steps or a pull request so your team can review and merge easily. Thanks, Ashish Aggarwal
₹24.000 INR in 7 Tagen
6,6
6,6

I understand your need to finalize the payment flow, implement a secure and consistent document-management module, and refine your existing LLM integrations for smoother performance. I have strong experience with gateway callbacks, role-based file systems, and OpenAI API workflows, and can deliver clean, reliable code with clear deployment notes. I can start immediately and ensure everything is tested end-to-end. Let’s discuss the current codebase and next steps.
₹27.000 INR in 5 Tagen
6,4
6,4

Being a Full Stack Developer with a focus on both frontend and backend technologies, your Website & Portal Optimization project fits well with my skillset and expertise. I have solid experience in working with JavaScript, PHP, and a deep understanding of the complexities behind website optimization. In terms of the specific tasks you require, I am adept at payment gateway integration, making sure transactions are seamless and secure - something that is fundamental to your project's success. My proficiency extends to building clean document management flows, like the one you need for your client portal, ensuring smooth file upload/download experiences. Moreover, having worked with agentic AI and chatbot technology such as OpenAI (or comparable) APIs, I bring additional value by speeding up operations without compromising quality. With me handling your project, deploying the code won't be an issue for your team; my extensive use of GitHub and expertise in CI/CD pipelines make version control and deployment a breeze. Choose me for efficient end-to-end delivery that meets all your requirements.
₹35.000 INR in 7 Tagen
6,5
6,5

As the founder of Pari Technology, a highly reputed and innovative IT company which has had extensive experience in delivering solutions for web development, I believe my team and I would be the perfect fit for your project. We have been operating successfully since 2009, growing into one of the most trusted names in IT services both locally and internationally. Our skill set encompasses not just API Integration, HTML, JavaScript, PHP, and Web Development but also extends to 50+ other technologies including Google Map integration and Payment Integration — skills that would be vital for your project. On top of our technical prowess, Pari Technology prides itself on fostering long-term business relationships with clients like yourself. One of our key differentiators is the scalability we build into all our products - ensuring they are future-ready and can grow seamlessly as your business evolves. Furthermore, my team's timely delivery, clear communication style and robust reporting systems will provide you with a non-negotiable sense of trust throughout the process. Choose Pari Technology for an excellent end result that then morphs into exceptional maintenance and support as we plan to be here for you throughout this journey— delivering nothing but excellence. DSK
₹25.000 INR in 15 Tagen
6,4
6,4

Hi, I can help you to improve both your public website and client portal. I have experience building and improving web platforms, integrating payment gateways, and creating secure, user-friendly dashboards. I can connect your existing payment page to the live gateway so transactions flow correctly, callbacks work, and success or failure messages appear in the right place. For the client portal, I can build a clean document-management system where clients can upload, preview, download, and delete files securely, with role-based access. I will ensure the UI matches your site, the code is performant, and everything follows best security practices. I also have experience working with OpenAI and similar APIs. I can integrate LLM responses smoothly into your portal and suggest ways to optimize performance, including caching or prompt tuning. I will provide clear deployment instructions and notes so your team can review and merge easily. I am confident I can deliver a polished, fully functional payment page, a secure document-management module, and any LLM enhancements needed for a smooth user experience. I would love the opportunity to contribute to your project. Please initiate a chat with me so that we can discuss your project and start work. Thanks & regards, Monica
₹15.000 INR in 7 Tagen
5,1
5,1

Hi, I have read your project description and understood it. You need the payment page properly connected to your live gateway with correct transaction handling, a document-management module in the client portal with upload, preview, download, and delete functions under role-based access, and smooth LLM integration for a consistent UX. All features should be secure, performant, and UI-consistent with the existing platform. and I can implement the payment flow, set up the document-management dashboard, and ensure LLM responses integrate seamlessly for your users. Regards, M Sohaib
₹25.000 INR in 2 Tagen
4,7
4,7

Hey, I can help you stabilize both the public site and the client portal by fixing the payment flow, implementing a clean document-management module, and improving the LLM-driven experience. You need the payment page properly wired to your existing gateway so transactions run end-to-end with correct callbacks and messaging. The portal also requires a structured document system—upload, preview, download, delete—wrapped in a consistent UI and secured with role-based access. Since your product relies on LLM responses, you also want someone who can refine the API integration and improve performance where possible. I’ll audit the current payment flow, connect it to the gateway, validate callbacks, and ensure success/failure states render cleanly. For the portal, I’ll build a streamlined document-management module with permission rules, efficient storage handling, and a UI matching your design system. I’ll also review the LLM integration, apply tuning or caching where beneficial, and deliver everything in tested, deploy-ready commits. A couple of quick questions: Which payment gateway is already live, and do you have existing webhook endpoints set up? Should document storage use your current infra (S3/Supabase/Cloud storage) or do you prefer a new setup? I would like to connect with you in chat or call to discuss deep down and figure out how to align that. Let's connect. Thanks!
₹35.500 INR in 10 Tagen
4,7
4,7

I've read through your project description thoroughly and it's easy to see why you're seeking professional assistance. Between integrating the payment gateway correctly on your platform, fine-tuning the document-management module, and smoothly integrating the large-language model layer, there are a lot of moving parts that need to be handled with precision. As a seasoned developer at Dlite Info Tech Pvt Ltd, I have the proficiency you're after. I'm well-versed in API integration, HTML, PHP, and web development - essential skills for tackling the tasks at hand effectively. On top of that, I understand the demanding nature of these kinds of projects and operate with an unwavering commitment to excellence in every step; you'll get results that work flawlessly for you. In addition to my technical capabilities, I further bring years of experience solving complex problems quickly and efficiently. I don’t just fix bugs—I engineer solutions that scale, secure, and significantly enhance performance. I believe successful projects come from transparent communication and real partnerships; be assured of timely updates and clear documentation for smooth review and eventual merging by your team.
₹21.500 INR in 7 Tagen
4,5
4,5

Hello, I can help you streamline both parts of your platform with a clean, secure, and fully functional implementation. With 15+ years experience in software development, I’ve handled similar portal, payment, and API-driven web systems end-to-end, and I’m confident I can deliver this with precision. My plan is straightforward: first, I will correctly link your existing payment page to the live gateway, set up the required callbacks, validate transaction flow, and ensure success and failure states show accurate messaging. Once payments are fully stable, I’ll move to the client portal and build a document-management module that supports upload, preview, download, and deletion, all with role-based permissions and a UI aligned perfectly with your current design language. Since your platform uses LLM responses, I can refine your existing OpenAI API integration, improve response handling, and add light caching to reduce latency. Throughout the build, I’ll focus on security, clean code, and a smooth user experience. You will receive a fully working payment page, a structured document module inside the portal, any required LLM touch-ups, and clear deployment or PR steps for easy review by your team. I can start immediately and share progress quickly.
₹22.000 INR in 7 Tagen
4,9
4,9

Hi Mate Shreyansh B., Good evening! Already have something live to show you I am an expert mobile programmer with skills including PHP, User Interface / IA, API Integration, JavaScript, Payment Gateway Integration, HTML, Website Optimization, Web Development, Large Language Models (LLMs) and Website Design. Please send a message to discuss more regarding this project. Appreciate your prompt response
₹12.500 INR in 2 Tagen
4,4
4,4

As the founder of OTUSONE – Innovative IT Solutions, I can assure you an unrivaled level of expertise in tackling the optimization tasks for your website and client portal. Our full-stack development proficiency in working with HTML, JavaScript, and PHP will greatly assist us in wiring your payment page correctly to ensure seamless transactions and appropriate success/failure communications. Moreover, our experience in secure document-management solutions will enable us to provide a clean, efficient, and role-based access-centric dashboard for your clients' uploading, previewing, downloading, and deleting needs. In terms of skillset that stands out for this particular project is our ability to integrate large-language-model (LLM) APIs within web applications. Given that your platform relies on LLM layer for knowledge transfer to users, we understand the need for smooth UX which includes quick API response times. We can share with you some effective caching or prompt-tuning tricks to enhance responsiveness.
₹25.000 INR in 7 Tagen
3,9
3,9

Hello, I am a highly skilled full-stack developer and digital solution architect with over 4 years of experience transforming ideas into powerful, scalable, and business-focused web and mobile applications. I specialize in building performance-driven, user-friendly products that not only look premium but also deliver measurable results. My development approach combines clean, maintainable code with modern UI/UX principles, ensuring every project is fast, secure, responsive, and optimized for real-world growth. My technical expertise includes: Frontend & Backend: PHP, Laravel, MERN Stack CMS & E-commerce: WordPress, Shopify, Magento Mobile Apps: Flutter (Android & iOS) Other Core Skills: API development, database design, payment integrations, automation, and cloud deployment From corporate websites and e-commerce systems to fully custom platforms and mobile apps, I deliver end-to-end solutions that are stable, scalable, and aligned with business goals. I work with a strategic mindset—spanning requirements analysis and system architecture through development, testing, deployment, and long-term support. My focus is always on quality, clarity, and delivering outstanding value. If you're looking for a developer who understands both technology and business and can bring your vision to life with precision, creativity, and reliability, I am here to help. Let’s build something exceptional together. Best regards, Arshi.g
₹25.000 INR in 7 Tagen
4,0
4,0

Hello Hiring Manager, I can integrate your existing payment gateway end-to-end, ensuring correct transaction flow, callbacks, and success/failure handling. I’ll also build a clean, secure document-management module with upload, preview, download, and delete features, aligned to your portal’s UI and role permissions. With experience integrating OpenAI/LLM APIs, I can refine prompts, caching, and UI responses for smoother performance. I’ll deliver fully tested payment functionality, the new document module, any required LLM touch-ups, and clear deployment or PR notes for easy review. Khuzema
₹25.000 INR in 7 Tagen
3,9
3,9

Hello valuable client, I understand that you need the payment page correctly integrated with your gateway and a secure document-management module inside the client portal. I can start immediately and deliver the complete fully functional payment flow, document dashboard, and LLM touch-ups within 5–6 days. Please come to chat to discuss in details. I'm waiting for your positive response. Best Regards, Usman
₹23.000 INR in 6 Tagen
3,6
3,6

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