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Custom SaaS-Based Web Application – React.js, Node.js & E-commerce Integrations We are looking for an experienced Full-Stack Developer to build a custom SaaS-based web application. The project will require a scalable, secure, responsive, and user-friendly platform with a modern frontend and robust backend. Required Skills & Experience: • React.js for modern and responsive frontend development • Node.js for backend/API development • JavaScript / ES6+ • REST API development and third-party API integrations • WordPress and WooCommerce integration/customization • Shopify integration and customization • Experience building SaaS platforms and subscription-based systems • Database design and management • Authentication, user roles, dashboards, and admin panels • Payment gateway and subscription integration • Clean, reusable, and maintainable code • Responsive design and cross-browser compatibility • Performance and security optimization The ideal developer should have strong experience working on custom SaaS products and should be comfortable integrating WordPress/WooCommerce and Shopify with a modern React + Node.js application. Project Requirements: The selected developer will work closely with us to understand the complete requirements, develop the application, integrate the required platforms/APIs, test the system, fix bugs, and prepare it for production deployment. We are looking for someone who can take ownership of the development process and deliver high-quality, scalable work. Please share examples of similar SaaS, React/Node.js, WooCommerce, or Shopify projects you have worked on.
Project ID: 40683780
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As already discussed in our previous chat window. So I am not writing complete proposal here. Thanks Saurabh
₹18,500 INR in 3 days
5.4
5.4
44 freelancers are bidding on average ₹21,272 INR for this job

Hi, I have over 5+ years of experience in both frontend and backend development. I will do the specified tasks. Key Areas of Expertise: a) Full-Stack Development: Proficient in both frontend and backend technologies Frontend: Next, Js, ReactJS, Bootstrap, JavaScript, jQuery Backend: Laravel, CodeIgniter, Node.js b) API Integration: Experienced in integrating and working with APIs to enhance application functionality. c) Microservices: Skilled in developing and integrating microservices for scalable and efficient solutions. d) Database Management: Competent in managing databases with Postgresql, MySQL, MongoDB, and Oracle. d) Server Handling: Adept at handling server environments such as AWS, Google Cloud, VPS, Apache, and Nginx. Lets connect in chat so that We discuss further. With Regards, Sai
₹13,600 INR in 5 days
7.8
7.8

Hello, I’m a Full-Stack Developer experienced with React.js, Node.js, REST APIs, SaaS platforms, WooCommerce, WordPress, and Shopify. I can build your application with a scalable architecture, secure authentication, user roles, dashboards, subscription/payment integration, database management, and reliable third-party API/webhook integrations. I’ll focus on clean code, responsive UI, performance, security, testing, and production deployment. I can take ownership of the complete development process and deliver a reliable, scalable SaaS solution. Let’s discuss your requirements and get started. Best regards, Shakti Tamnwar
₹25,000 INR in 7 days
8.0
8.0

Hi, I can take ownership of building your SaaS platform with a scalable React.js + Node.js architecture and handle the required WooCommerce, WordPress, and Shopify integrations. I have experience with: • React.js, JavaScript/ES6+ and responsive UI • Node.js, REST APIs and third-party integrations • SaaS and subscription-based platforms • WooCommerce & Shopify integrations/customization • Database architecture and API-driven systems • Authentication, roles, dashboards and admin panels • Payment gateways and subscription workflows • Performance, security and production deployment My approach is to first understand the complete workflow and integration requirements, then build a clean, modular architecture that is easy to maintain and scale. I’ll also handle testing, bug fixing, API integration, and deployment rather than leaving the project at the development stage. I’m comfortable working closely with the team and taking responsibility for the complete development lifecycle. I’d be happy to discuss the requirements and share relevant React/Node.js and SaaS work. Best regards, Ramkishan
₹25,000 INR in 7 days
6.4
6.4

I can build your custom SaaS-based web application using React.js and Node.js, ensuring a secure and user-friendly experience. My first step will be to gather detailed requirements to align on the project scope and necessary integrations, particularly with WooCommerce. Based in Toronto, I work efficiently and am always available for updates and questions.
₹12,500 INR in 3 days
6.6
6.6

Hi, I’m a Full-Stack Developer with 9+ years of professional experience building scalable SaaS and web applications. I have strong hands-on expertise with React.js, Node.js, JavaScript/ES6+, REST APIs, databases and modern responsive UI development. I can build the SaaS architecture with clean, reusable components and a secure, maintainable backend. I’m experienced with authentication, role-based access, dashboards, admin panels and subscription-based workflows. I can integrate and customize WordPress/WooCommerce and Shopify through APIs and custom integrations. Payment gateways, recurring subscriptions, third-party APIs and data synchronization can be implemented securely and reliably. I’ll focus on performance, security, responsive behavior and cross-browser compatibility from the beginning. My approach includes clear development milestones, testing, code reviews, bug fixing and production-ready deployment. I’ll take ownership of the project from requirements analysis through integration, QA and final launch. I’m available to start immediately and would be happy to share relevant SaaS, React/Node.js, WooCommerce and Shopify work. Thanks
₹25,000 INR in 7 days
5.8
5.8

With a vast portfolio encompassing a wide range of technologies including React, Node.js, I am more than prepared to take on the development of your custom SaaS web application. I excel at building scalable, secure, and responsive platforms with modern frontends and robust backends - exactly what you require for your project. Having worked on similar projects in the past, I understand the importance of clear communication and aligning my work precisely with your vision. Throughout my career, I have consistently delivered top-notch projects that merge seamless user experience with efficient technical functionality. From n8n automation to AI chatbots and CRM setups to GoHighLevel funnels, my skills in Full Stack, MERN Stack Development make me highly adaptable to any requirement or technology. I specialize in REST API development and third-party integrations which aligns perfectly with what you are looking for. Building subscription-based systems and SaaS platforms is an area where I particularly shine. I understand the intricacies involved in delivering a user-friendly dashboard with robust admin panels incorporating secure authentication and payment gateway integration. With an inclination towards clean code and performance optimization, I guarantee high-quality work that is also easily maintainable. It would be my pleasure to take ownership of the development process and provide you with a scalable final product that exceeds your expectations
₹25,000 INR in 15 days
6.1
6.1

Hello, I can help you in developing a custom SaaS based web application. I have a rich experience in working on custom SaaS projects and am comfortable in integrating WordPress/WooCommerce and Shopify with a modern React + Node.js application. I am excited to take ownership of the development process and deliver high quality, scalable work. Message me to discuss more details. Let's get started, Fahad.
₹13,000 INR in 2 days
5.6
5.6

With my team's comprehensive 17+ years of experience and diversified skill set in ASP.NET C#, Python, and JavaScript-based technologies, among others, we embody all of your project needs. While the mentioned project is more focused on React.js and Node.js, our extensive portfolio also includes prior development work integrating platforms like WooCommerce and Shopify, which aligns perfectly with your project requirements. Having been in the business for so long, we understand the importance of a scalable, secure, and user-centric platform in developing a successful SaaS-based application. In addition to that, I must emphasize our keen eye for clean code writing that is both reusable and maintainable - crucial traits for a long-lasting web application like the one you're envisioning. But beyond just meeting the basic project requirements, we pride ourselves on going above-and-beyond to exceed client expectations. We’re not afraid to take ownership of the development process. Your satisfaction is our priority which means open communication throughout the project journey while delivering to you only the high-quality and thoroughly tested codes.
₹25,000 INR in 7 days
5.2
5.2

Hello, I’d be happy to build your custom SaaS application using React.js and Node.js. I have 5+ years of experience in full-stack development, SaaS platforms, API integrations, WooCommerce, Shopify, databases, and subscription systems. I will provide: • Modern, responsive React.js frontend with scalable Node.js backend • REST APIs and third-party integrations • WordPress/WooCommerce and Shopify integrations • Secure authentication, user roles, dashboards, and admin panel • Payment gateway and subscription functionality • Scalable database architecture with strong security • Clean, reusable, and maintainable code • Testing, bug fixing, optimization, and deployment support I’ll take ownership of the development process from requirement analysis through production, while keeping the architecture flexible for future integrations and features. I can share relevant SaaS, React/Node.js, WooCommerce, and Shopify work samples and discuss milestones after reviewing the complete requirements. Looking forward to working with you. Warm Regards, Monica Bhatia
₹15,000 INR in 3 days
5.2
5.2

Hello, I am a Full Stack Developer with 15 years of working experience and I can build a Saas application as per your requirements that you have mentioned in the project description. I have experience working on React.js, Node.js and MERN stack etc and can make a SaaS web application as per your requirements. I will make the app with modern, clean and good UI so it looks out of the box and also with faster loading speed so it performs well. I will also make it as per SEO standards so it performs well on google search ranking index. Looking forward to hear from you.
₹20,000 INR in 5 days
5.0
5.0

Hi, I understand you need a custom SaaS platform built with React.js and Node.js, with subscription, authentication, dashboards, payments, and WooCommerce/Shopify integrations. We can handle the complete development, including REST APIs, database architecture, third-party integrations, role-based access, admin panel, performance, security, testing, and production deployment. Our approach will keep the code modular and scalable so new SaaS features and integrations can be added without reworking the core platform. Let’s discuss your complete workflow and integrations so we can finalize the milestones and get started.
₹20,000 INR in 7 days
4.5
4.5

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
₹25,000 INR in 7 days
3.9
3.9

Dear Client, I can build your custom SaaS-based web application using React.js and Node.js with secure, scalable, and responsive development. I have 6+ years of experience in full-stack development and can handle: React.js frontend and Node.js backend REST APIs and third-party integrations WordPress/WooCommerce and Shopify integration User authentication, roles, dashboards, and admin panel Payment gateway and subscription systems Database setup, security, performance, testing, and deployment I can share relevant work links in the chat box. Looking forward to your response on chat box. Thanks.
₹12,500 INR in 10 days
4.0
4.0

As a Full-Stack Developer with over five years of experience, I have extensive knowledge in Node.js and React.js which aligns perfectly with your project requirements. One of my notable achievements includes developing a custom SaaS platform utilizing Node.js and React.js to provide comprehensive solutions for subscription-based systems. My expertise also extends to integrating platforms such as WordPress/WooCommerce and Shopify using robust APIs, ensuring seamless data flow and unified functionality. Database design is crucial in any web application, and I am proficient in designing and managing databases, enabling optimal performance while prioritizing security. This proficiency helps me understand the intricacies of scaling applications like yours efficiently. Equally adept at front-end development, I have hands-on experience with JavaScript, HTML/DHTML, CSS3 among others. Furthermore, I focus on building clean, reusable, and maintainable code- making future updates easier. On-time delivery expertise paired with high-quality work has earned me a reputation for meeting client expectations under strict deadlines. It's not just about finishing your project; I aim to provide you with a valuable long-term solution you can rely on. Let's connect so we can discuss all the specifics of your project in detail!
₹12,500 INR in 7 days
2.9
2.9

React on the front, Node.js behind it, and a scalable system connecting everything together. That’s how I would approach your SaaS application. With 4 years of experience and 60+ projects, I can manage the complete development cycle: UI → APIs → Database → Integrations → Payments → Testing → Launch Including Shopify, WooCommerce, subscriptions, authentication, dashboards and third-party APIs. The application will be responsive, secure, fast and structured for easy future development. I can share similar SaaS/eCommerce work and discuss your architecture. Regards, Ritesh N
₹12,500 INR in 7 days
1.1
1.1

As an experienced Full-Stack Pioneer, I understand the intricacies of building and managing custom SaaS platforms. My skills with React.js, Node.js, and e-commerce integrations are in line with your project needs. Over my 6+ years of experience, I’ve not only created SaaS-based web applications but also successfully integrated WordPress/WooCommerce and Shopify into modern frameworks like React.js and Node.js. Working alongside a team of dedicated developers and designers, I can assure you that our clean, reusable, and maintainable code aligns with your need for a scalable and secure platform. Further, my experience with payment gateway and subscription integration will help make the transactional aspect of your platform seamless. What sets me apart is my commitment to exceeding my clients’ expectations. From understanding the complete requirements to deploying a bug-free application, I will take ownership of the entire journey. Let's connect and discuss your vision further - together we can harness the power of technology to develop an innovative SaaS-based web application tailored to your specific needs.
₹25,000 INR in 7 days
1.3
1.3

As an experienced Full-Stack Developer, I understand the complexity and scale of developing a custom SaaS platform, which makes me your ideal candidate for this project. I am well-versed in using React.js and Node.js to build responsive, secure, and scalable web applications, which will tick all your necessary boxes. My proficiency doesn't stop there - I am comfortable handling WordPress/WooCommerce and Shopify integration/customization that'd be essential for this project. My creativity in crafting clean and reusable code will ensure your platform's maintainability in the long term while also delivering high-performance solutions – a crucial element when it comes to user satisfaction on a SaaS product. My database management and optimization abilities further augment my skills, guaranteeing efficient data handling. Overall, my extensive experience working with similar technologies for diverse industries has honed my ability to align business objectives with technical decisions. By choosing me, you'll be partnering with an expert who understands not only the nuts-and-bolts but the financial implications of each technical aspect, ultimately maximizing your ROI on this project.
₹31,000 INR in 12 days
0.0
0.0

I’d structure the SaaS around a modular React.js frontend and Node.js REST API, with clear separation between authentication, subscriptions, business logic and third-party integrations. PostgreSQL would be a strong default for the core data model, with role-based access control and isolated tenant data from the beginning. WooCommerce and Shopify integrations would be implemented through their official APIs/webhooks, with normalized internal entities so the SaaS remains independent of either platform. Subscription/payment handling would include webhook-based synchronization, idempotency and reliable status tracking rather than trusting client-side payment responses. I’d build reusable dashboards and admin components, secure API authentication, validation, logging and error handling, then cover critical flows with automated tests before production deployment. Performance would be addressed at both React and API/database levels. The development process would be milestone-based: architecture and data model, core SaaS/authentication, dashboards and business features, e-commerce integrations, subscriptions/payments, testing and production deployment. Documentation and clean source structure would be maintained throughout. Which specific SaaS workflow and Shopify/WooCommerce operations need to be automated? That will determine the integration architecture and milestone estimate.
₹25,000 INR in 7 days
0.0
0.0

We have a full stack team, we can do it for ₹5000 and you will get lifetime support.
₹12,500 INR in 7 days
0.0
0.0

You need a production-ready SaaS platform built on React and Node.js, with clean subscription logic and tight e-commerce integrations across Shopify and WooCommerce. Here is my plan: React frontend with reusable component architecture, Node.js REST API backend, JWT-based auth with role management, Stripe for subscriptions and payments, and a solid PostgreSQL or MongoDB schema designed to scale. Shopify and WooCommerce integrations handled via their native APIs, not workarounds. I have built SaaS platforms with multi-tenant architecture, admin dashboards, subscription tiers, and third-party integrations from scratch. I write clean, documented code and hand off projects you can actually maintain. Timeline estimate: MVP in 6 to 8 weeks depending on scope, full production build in 10 to 14 weeks. What does your current requirements document look like, and do you have wireframes or a feature list I can review to give you a precise scope and quote?
₹21,855.28 INR in 7 days
0.0
0.0

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