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I need an experienced senior full-stack developer to build and deploy a small but production-ready SaaS feature. The goal is to take a simple MVP requirement and turn it into a working web application feature that demonstrates clean frontend, backend, database, API integration and AI functionality. The task includes: • Build a responsive React/[login to view URL] interface • Create a Node.js backend/API • Connect PostgreSQL/Supabase database • Implement basic authentication and user data • Integrate an AI API such as OpenAI or Claude • Connect one external REST API • Add a simple dashboard to display the results • Handle loading, errors and basic validation • Deploy the completed feature to Vercel/Supabase or similar • Provide clean, maintainable source code The feature can be a simple AI-powered business workflow, for example: User enters information → backend processes it → AI generates/analyses the result → data is saved → result appears in the dashboard. I am not looking for a quick prototype or generated code that only works locally. The feature should be structured properly and ready to be extended into a larger SaaS product. Experience with React, [login to view URL], Node.js, PostgreSQL, Supabase, REST APIs, OpenAI/Claude and SaaS development is preferred. This is a small focused task and should take approximately 2–5 hours for an experienced developer.
Project ID: 40674396
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Hi,I can build this as a production-ready AI SaaS feature rather than just a quick prototype. I’m a Senior Full-Stack AI SaaS Developer with 8+ years of experience building web applications, SaaS platforms, AI products, APIs, integrations, and automated business workflows. My core stack includes React, [login to view URL], Node.js, TypeScript, Express, NestJS, PostgreSQL, MongoDB, Supabase, AWS, REST APIs, OpenAI/Claude, Stripe, webhooks and automation. One of my strongest examples is Obenan, an AI-powered multi-tenant SaaS platform where I worked as a core engineer and Engineering Team Lead. I helped take the product from a blank repository to $1M ARR, serving 1,500+ business locations across 40+ countries. For your project, I can handle the complete workflow: React/[login to view URL] UI → Node.js API → database → AI integration → third-party APIs → automation/webhooks → dashboard → deployment. I also focus on proper authentication, validation, error handling, security, clean architecture and code that can be extended as the SaaS grows. I’m comfortable taking an existing MVP or AI-generated prototype and turning it into properly structured, production-ready software. I can start immediately and handle the implementation end-to-end. Best, Jahanzaib
$20 CAD in 10 days
0.9
0.9
194 freelancers are bidding on average $20 CAD/hour for this job

With a strong background in full-stack development, I understand the need for a robust SaaS feature. My experience includes building responsive React interfaces and integrating AI functionality, as seen in my previous work on user-friendly web applications. How do you envision user interactions with the AI component to enhance the overall workflow efficiency? Regards, Yogesh Kumar
$18 CAD in 34 days
7.8
7.8

Hi there, I can see the hidden requirement here: you do not want a demo, you want a SaaS feature that is cleanly wired end-to-end and ready to grow. I’ve built web apps with React, Node.js, APIs, authentication, database flows, and deployment setups, so I can structure this feature properly across frontend, backend, data, and AI integration. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. I’ll keep the implementation maintainable, validate the data flow, handle loading and error states cleanly, and make sure the result is deployment-ready on Vercel/Supabase or a similar setup. If you already have the UI direction and API choice finalized, I can move quickly; if not, I can help shape the workflow so the feature fits a larger SaaS product without rework. Which AI API and external REST API should be integrated first, and what exact user flow should the feature support? Looking forward to your reply so we can finalize the exact plan. Best regards, Asad
$15 CAD in 60 days
7.0
7.0

My name is Nitin, and as the founder of SoftwareLinkers, I lead a team of experienced professionals who have a demonstratable track record in building secure, scalable digital systems - skills that align perfectly with your project requirements. We are well-versed in PHP & MySQL backend development, RESTful API creation and integration for web and mobile platforms, and React.js/UI development for data-driven web applications. Having worked across various industries like Education & eLearning, Insurance & Finance, Logistics & Operations, Corporate & Enterprise platforms and working with startups & growing businesses have given us the necessary exposure and cognitive flexibility to handle small yet complex tasks that you seek. Our ultimate goal is to provide clean, maintainable source code that aligns with your business' long-term objectives. With a 4.9★ rating across 100+ verified reviews, a 96% job success rate and high client retention rates, our approach to put understanding your business goals at the heart of what we do has helped us deliver consistently successful solutions. Together, we can build a sophisticated SaaS feature that will lend productivity and efficiency to your business using the power of AI.
$20 CAD in 40 days
5.7
5.7

Hello! We can build this SaaS feature as a production-ready web solution. 1. Do you already have the MVP flow and UI structure defined? 2. Which external REST API and AI service should we connect first? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$20 CAD in 40 days
6.3
6.3

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
$20 CAD in 40 days
2.6
2.6

With my background heavily steeped in iOS, SaaS, and AI app development, I am well-equipped to handle the intricacies of your project. Over my 9 years of experience, I have built a strong repertoire of skills utilizing key technologies such as Swift, SwiftUI, BLE/IoT inclusion, Node.js, NestJS, and PostgreSQL - all mainstays in your project prerequisites. I specialize in crafting high-performance apps capable of handling real-time scenarios with utmost fluidity and security measures. I believe these qualities are absolutely critical to develop a production-ready SaaS feature that not only meets but exceeds your expectations. Furthermore, I understand the importance of scalable backend architecture for future product expansion. One area where I can bring a unique advantage is through CarPlay integration. While it might seem tangential to the project at hand, it speaks directly to my ability to implement seamless integrations with external APIs – a vital aspect of your requirement. In addition to my technical expertise, you can rely on me for fast communication and transparent updates so that you remain informed at every stage of the project journey. Let's connect and unfold your app's true potential together!
$20 CAD in 40 days
0.0
0.0

Hi, I have successfully developed and deployed production-ready SaaS features utilizing React, Node.js, PostgreSQL, and AI integration in the past. One particular project involved building a similar AI-powered business workflow where user input was processed, analyzed by AI, and displayed in a dashboard. My strength lies in my ability to deliver high-quality solutions with a focus on outcomes and strategic thinking. I am responsive, adaptable to different time zones, and open to discussing your project requirements further. Let's chat about how I can assist you in creating a clean, maintainable feature that showcases your MVP requirement effectively. Best regards, Abdullah
$20 CAD in 40 days
0.0
0.0

Hello, I hope you’re doing well. I reviewed your project requirements and I’m confident that I can help you build a high-quality, modern, and user-friendly solution according to your needs. Senior-Full-Stack-SaaS-Developer I’m Ankur, a Full Stack Developer with 7+ years of experience in: • Custom Website Development • E-commerce Development • Mobile App Development • Flutter App Development • Android & iOS Applications • WordPress & PHP Development • UI/UX Design • Admin Panels & APIs I have successfully completed 500+ projects for startups, businesses, and individual clients worldwide. Why work with me? ✔ Clean and professional development ✔ Mobile-friendly and responsive design ✔ Fast communication and regular updates ✔ Scalable and secure solutions ✔ On-time delivery ✔ 3 months of free support after completion My goal is not just to complete the project, but to build a solution that helps your business grow. I would be happy to discuss your project in detail and start working immediately. Looking
$30 CAD in 50 days
0.0
0.0

Hello, I can assist right away. I have read the details you shared and I understand the outcome you want. I am an expert with 7 years of experience in Node.js, React.js and I helped many clients reach their goals. Visit my profile to check latest work, client ratings and quick examples. Connect in chat to discuss details and next steps. Looking forward, Rohnit
$20 CAD in 40 days
0.0
0.0

Hello there A small SaaS feature can become difficult to extend when authentication, AI calls, external APIs, database writes, and frontend state are connected without a clean structure. I can build the flow with clear API boundaries, proper validation and error handling, secure user data storage, and a dashboard that is ready for future SaaS features. Please share the MVP requirement or workflow you want to demonstrate, and I can map the frontend, backend, database, AI, and external API flow before development begins. Looking forward to hearing from you. Warm Regards, Sagar
$24 CAD in 40 days
0.0
0.0

Hello, I have carefully reviewed your project requirements and I’m confident that I can deliver a high-quality solution tailored to your needs. With my expertise, attention to detail, and commitment to timely delivery, I will ensure the project is completed professionally and efficiently. I’d be happy to discuss your requirements in detail and share the best approach for your project. Please feel free to message me anytime. Best regards, Abdul Wasay
$20 CAD in 25 days
0.0
0.0

I understand you need a small feature that is not just working locally, but has a proper flow from UI → API → database → AI → dashboard and is easy to extend later. I can handle this end to end, including authentication, API errors, data storage and deployment. Do you already have the exact AI workflow defined, or should we first finalize the input, AI processing and expected output? Let’s connect in Freelancer chat and discuss the flow.
$25 CAD in 40 days
0.0
0.0

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$15-25 USD / hour
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
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