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[login to view URL] already runs as a wellness-focused SaaS; what I need now is a solid round of enhancements so the platform feels fresh, functions flawlessly, and can finally accept payments. Scope of work • Payment integration – a fully tested gateway wired into existing subscription logic so users can pay and see their status reflected in real time. • Media refresh – remove the dated images across public and member areas and replace them with the new assets. Adding of features and generation of reports by users . minor changes in the colour • Bug & function fixes – any broken or unreliable flows uncovered during the upgrade should be resolved before hand-off. Tech environment The app is a typical SaaS stack (React frontend, Node/Express API, MongoDB). If you prefer comparable frameworks that slot in smoothly, I’m flexible so long as the final build is stable and maintainable. Collaboration Regular in-person catch-ups in Chandigarh or Panchkula are essential; I’ll provide design files, image assets, and test credentials during those meetings. Deliverables are accepted when: 1. Payments are processed end-to-end in staging and production. 2. All old images are gone and new ones appear in every viewport. 3. Reports generate, filter, and export without error. 4. colour scheme is consistent across pages. 5. No previously working feature is broken by the release. If this lines up with your full-stack skill set and you can meet locally, let’s set up our first session.
Project ID: 40642560
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69 freelancers are bidding on average ₹7,843 INR for this job

Hi, I can handle the upgrades on your existing React + Node/Express + MongoDB SaaS. I’ll integrate the payment gateway with the subscription status, add user report generation/filtering/export, replace the old media, update colours, and fix any issues found during testing. I’ll make sure payments work in both staging and production and that existing features remain unaffected. I have 10+ years of full-stack experience and can also attend regular meetings in Chandigarh/Panchkula. Ready to review the current codebase and start. Thank you Regards, Sai
₹7,000 INR in 7 days
6.5
6.5

As an experienced full-stack developer with a strong skill set in JavaScript, MongoDB, Node.js, and NoSQL Couch and Mongo, I'm confident that I can execute the enhancements you require for your SaaS platform, MissionHealthInc.com. My noteworthy eight years' experience has equipped me to not only understand but also address several challenges that typically arise in an upgrade of this magnitude. My proficiency in Payment Gateway Integration is particularly valuable here, considering your need for a well-tested gateway wired into existing subscription logic for real-time payment tracking. Additionally, my strong background in Web Development ensures stable and maintainable enhancements while also empowering me to handle any broken or unreliable flows uncovered during the upgrade process. On top of that, my experience goes beyond just coding; I've had a knack for understanding the bigger picture and ensuring smooth collaborations throughout my career. I'm glad to say that regular in-person catch-ups pose no problem as I'm based out of Chandigarh or Panchkula, making us locationally convenient teammates. Trusting me with this project guarantees proficient results delivered on time while maintaining all pre-existing functionalities intact.
₹12,000 INR in 5 days
6.6
6.6

As a full-stack developer and an expert in SaaS projects, your MissionHealthInc platform aligns perfectly with my skill set. I’ve successfully built and scaled high-quality websites and mobile apps, skills that are directly transferrable to your project. In addition, I have an extensive background in using various CMS platforms such as WordPress, Webflow, Shopify, as well as working with various tech stacks including MEVN stack (which correlates with your React frontend, Node/Express API, MongoDB). I’ve honed my strengths in payment integrations, which addresses your need for a seamless payment gateway wired into the system for real-time status updates. Additionally, I'm well-versed in front-end polishing such as removing dated images and adding fresh media assets. This includes working on colour consistency and making minor changes against frontend details so we offer a flawless system throughout. I also specialize in generating user-friendly reports and implementing filters efficiently to ensure accuracy in your reporting process. In terms of collaboration, I am based in Chandigarh or Panchkula just like you. Being able to meet face-to-face regularly will not be a problem at all. Please note that the aim of my perfomance would be to deliver a solidly upgraded platform that functions flawlessly across all areas and retains the integrity of existing systems - which is fully aligned with your vision.
₹7,000 INR in 7 days
5.1
5.1

Hello I reviewed your MissionHealthInc SaaS Feature Upgrade project and it stood out because extending an existing SaaS platform requires adding new functionality without disrupting the current users workflows data and integrations Problem SaaS feature upgrades can introduce regressions performance issues and inconsistent behaviour when new frontend and backend functionality is added without understanding the existing architecture Solution I can review the current MissionHealthInc codebase and implement the required SaaS upgrades across frontend backend APIs database and integrations I can add new features improve existing workflows fix bugs optimize performance and strengthen validation authentication and error handling where required I will also test the changes against existing functionality before deployment Result You will receive a stable upgraded SaaS platform with the requested features integrated cleanly while preserving existing functionality and providing a maintainable foundation for future development A few questions Which features are the highest priority for this upgrade What technology stack is currently used Are there existing bugs or performance issues that should be addressed alongside the new features Do you have a staging environment and Git repository available I can start immediately and provide regular progress updates throughout the project Thanks
₹12,000 INR in 7 days
5.1
5.1

As an experienced full-stack developer with a strong focus on web development, payment gateway integration, and a thorough mastery of the JavaScript ecosystem, including both Node.js and React, I'm confident I can complete this project to the highest standard. My past experience working with SaaS platforms using React frontend, Node/Express API, MongoDB presents a great advantage as I am already seasoned in your tech environment. What sets me apart is my unwavering commitment to quality and user-experience optimization. I understand each line of code matters to the performance of your platform; therefore, I am meticulous at isolating and fixing bugs before they become bigger issues that can affect your business. Implementing new features is one thing, but it takes a special skill to ensure they seamlessly integrate without affecting previously functioning ones. Moreover, my location in Chandigarh or Panchkula allows for regular in-person catch-ups which aligns with your collaboration requirements. No more long waits for feedback or critical discussions on the project! With me on board, you're guaranteed of an upgrade that feels fresh with new media assets, accepts payments without a hitch and even generates insightful reports. Let's set up our first session today and make your MissionHealthInc a more improve user-centric platform for you.
₹30,000 INR in 30 days
5.1
5.1

Hello, I am a Full Stack Developer with 15 years of working experience and have experience working on the tech stack you have specified for this project. I can improve the design and the performance speed so it performs way better and also do the other changes like payment gateway integration that you have mentioned in the project description. I can complete the work with good quality and also complete it quickly. Looking forward to hear from you.
₹5,000 INR in 5 days
4.3
4.3

Hi, This sounds like a focused SaaS enhancement rather than a rebuild, and I can work directly with your existing React + Node/Express + MongoDB stack. The payment integration would be my first priority: connecting the gateway to your existing subscription logic, handling webhooks/status updates correctly, and testing the complete payment lifecycle in staging before production. Alongside that, I can handle: • Replacing outdated media across public/member areas • User-generated reports with filtering and export • Small, consistent color/UI adjustments • Investigation and fixing of existing bugs • Regression testing to ensure current features remain intact I’d prefer to work within the existing architecture rather than introduce unnecessary technologies. I can also review the current code before implementation so we can identify any dependencies that could affect the payment or reporting work. The goal would be a clean enhancement of the current product—not a disruptive rewrite—with payments working reliably, reports functioning properly, the refreshed visuals applied consistently, and no regression to existing features. Happy to review the current platform and discuss the first session.
₹12,499 INR in 7 days
4.4
4.4

Hi, We can enhance your existing React + Node/Express + MongoDB SaaS while keeping the current functionality stable. We’ll handle: Secure payment gateway integration with subscription status sync Replacement of outdated images with your new assets User-generated reports with filtering and export Minor color and UI consistency improvements Bug fixing, testing, and performance checks Staging + production deployment and end-to-end testing We’ll work carefully with your existing codebase to ensure no working functionality is affected. Let’s schedule the first session and get these enhancements moving.
₹7,000 INR in 7 days
4.1
4.1

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹7,000 INR in 7 days
3.7
3.7

Hi! I’m Tarang, with 18+ years of experience and 1,000+ web/mobile solutions delivered, including SaaS platforms and complex React, Node.js/Express and MongoDB applications. I can handle the complete enhancement cycle—secure payment/subscription integration, user-generated reports with filtering/export, media refresh, UI colour updates and thorough bug fixing without disrupting existing features. My full-stack experience allows me to work directly within your existing architecture and deliver a stable, production-ready release with proper staging and testing. I’m ready to start immediately; please join the chat to discuss the platform and arrange the initial session.
₹2,600 INR in 7 days
3.4
3.4

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. I’ve handled similar work before and can help you avoid that. Regards, Rajesh
₹7,000 INR in 7 days
3.0
3.0

Hi there, I’d be a strong fit for this project because it requires both React/Node.js full-stack development and reliable payment integration without disrupting an existing SaaS platform. I’m Muhammad Umer, a Full-Stack Developer experienced with React, Node.js/Express, MongoDB, REST APIs, and payment integrations. I can work directly with your existing codebase, identify the current issues, and implement the enhancements while keeping the existing functionality stable. For the payment integration, I’ll first review the existing subscription architecture and then implement the appropriate gateway with secure payment handling, webhook verification, subscription status synchronization, and proper success/failure flows. I’ll test the complete process in staging before production deployment. I can also handle: Replacing outdated images across public and member areas User-generated report creation, filtering, and exporting Existing bug and functionality fixes Responsive testing across desktop, tablet, and mobile Regression testing to ensure existing features continue working Production deployment and handover I’d keep the existing React + Node/Express + MongoDB stack rather than introducing unnecessary changes. I’d be happy to review the existing application and break the work into clear milestones covering the payment integration, reports, UI refresh, bug fixes, testing, and deployment. Best regards, Muhammad Umer Full-Stack Developer
₹7,000 INR in 7 days
3.1
3.1

Hi, I’d be happy to help enhance your existing MERN-based SaaS platform. I have 8+ years of web development experience with React, Node.js, Express, MongoDB, payment/API integrations, reporting modules, and bug fixing. I can handle the payment gateway integration with the existing subscription logic, media replacement, user-generated reports with filtering/export, colour updates, and the required bug/function fixes while ensuring existing features remain stable. I can work closely with you through regular Google Meet sessions for requirements, reviews, and progress updates. Please let me know if remote meetings are acceptable instead of in-person meetings in Chandigarh/Panchkula. I’d be happy to review the existing application and discuss the exact payment, reporting, and feature requirements before confirming the scope and timeline. Thank You!!
₹1,500 INR in 7 days
3.2
3.2

Implementing the payment integration for your missionhealthinc saas is the first execution step to ensure functionality. I will focus on wiring a fully tested payment gateway into your existing subscription logic so users can successfully pay and see their status in real time. Following this, I will execute the media refresh by replacing all dated images across public and member areas with the new assets. The subsequent phase involves adding user report generation and ensuring all bug and function fixes are resolved before final delivery. I will verify the success of this work by confirming end-to-end payment processing in staging and production, the presence of new media everywhere, and the error-free generation of user reports. To ensure smooth execution, can you confirm if the payment gateway integration requires specific API documentation from your existing system?
₹7,000 INR in 7 days
2.9
2.9

If the payment gateway returns async webhooks, a race condition can leave the subscription flag out of sync with the database. I'll wrap the status update in a Mongo transaction and emit a socket event so the UI reflects the change instantly. For the image swap, I'll clear the service worker cache to avoid old pictures lingering on repeat visitors. A common pitfall is relying on hard-coded colour values in component styles, which makes the new palette bleed only partially. I'll replace those with CSS variables and run a quick visual regression test to catch any missed spots. Ready to start immediately and get the payment flow, images, and reports stable.
₹10,000 INR in 4 days
2.4
2.4

Hi, I can help enhance and stabilize your existing MissionHealthInc SaaS platform while keeping the current React, Node/Express, and MongoDB architecture intact. I can handle the complete payment integration with your existing subscription logic, including payment status synchronization, staging/production testing, and reliable handling of successful or failed transactions. I can also replace the outdated media assets, make the required color improvements, add the user report generation/filter/export functionality, and resolve any bugs or broken workflows identified during the upgrade. I’ll focus on maintaining existing functionality, clean integration with the current codebase, responsive behavior, and thorough testing before deployment. I’m also comfortable with regular local collaboration in Chandigarh/Panchkula and can work through the requirements and testing sessions directly with your team. I’d be happy to review the existing application, payment requirements, and report workflow and then suggest the implementation plan and timeline.
₹6,500 INR in 7 days
2.2
2.2

As an accomplished Web and App Developer with over six years of experience in the industry, I can confidently say that I'm the perfect fit for your MissionHealthInc SaaS Feature Upgrade. More than just proficient in web development, my specific expertise include JavaScript, which is pivotal to your existing stack. Throughout my career, I have delivered various projects entailing both front and backend development, mirroring the exact characteristics you seek. Just to highlight a few examples: I have successfully implemented payment gateways in e-commerce platforms and created dynamic membership portals with necessary reports generation and export features. Additionally, I value and understand the importance of collaboration, so you can count on me for our regular catch-ups in Chandigarh or Panchkula. On top of all these technical capabilities, what sets me further apart is my strong emphasis on quality, reliability, and performance-driven solutions. So let's come together to make MissionHealthInc the leading SaaS platform in its domain!
₹7,000 INR in 7 days
2.2
2.2

Hi, I have read your requirement carefully, and I am confident that I can help you upgrade and stabilize your existing MissionHealthInc SaaS platform. Please send me a message so we can review the current React/Node.js/MongoDB codebase, existing subscription flow, payment requirements, reporting features, UI changes, and the bugs that need to be addressed. I have experience in full-stack SaaS development using React, Node.js, Express, MongoDB, REST APIs, payment gateway integration, report generation, testing, and UI improvements. I can integrate the payment gateway with your existing subscription logic, replace the media assets, implement user reports with filtering/export, apply the required colour updates, and thoroughly test existing functionality to avoid regressions. I am also comfortable with regular in-person meetings in Chandigarh/Panchkula and can work closely with your team during the upgrade. Please come for a chat so we can review the existing application and discuss the technical approach, timeline, and milestones. Best Regards Prachi Webix Infotech
₹8,000 INR in 10 days
1.4
1.4

I've recently helped a client enhance their SaaS platform by implementing effective upgrades that improved user engagement and functionality. I understand you're looking to make your wellness-focused SaaS feel fresh and seamless, particularly with payment integration and a media refresh. My goal is to ensure your platform feels clean, modern, and user-friendly while supporting real-time payment processing. I have extensive experience in upgrading SaaS applications, specifically using React, Node/Express, and MongoDB, which aligns perfectly with your tech environment. My skills include creating efficient, scalable solutions and ensuring a smooth user experience. I am confident in my ability to resolve any bugs and enhance functionality to meet your requirements. I can get started quickly and would be happy to discuss the project further. Regards, Shaun Kelly.
₹5,650 INR in 7 days
1.4
1.4

Hi, Are you looking for someone who can handle both the React/Node.js development and the payment integration end-to-end? I can enhance your existing React/Node.js/MongoDB SaaS with secure payment integration, report generation, media replacement, UI color updates, and bug fixes. I’ll test everything on staging first, ensure existing functionality remains intact, and then deploy safely to production. I have 10+ years of full-stack development experience and can work with your existing codebase without unnecessary rewrites. Ready to start immediately. Best regards, Usman
₹7,000 INR in 7 days
1.4
1.4

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