You will get a Custom SaaS Web Application with React, Node.js and MongoDB

sumit S.Status: Offline
sumit S. sumit S.
4.8
Top Rated

Let a pro handle the details

Buy Custom Website Programming services from sumit, priced and ready to go.
sumit S.Status: Offline
sumit S. sumit S.
4.8
Top Rated

Let a pro handle the details

Buy Custom Website Programming services from sumit, priced and ready to go.

Project details

Custom SaaS web application development using React, Node.js, and MongoDB. I build subscription-based platforms, multi-tenant applications, and cloud-hosted software products from architecture to deployment.

Every SaaS application I deliver includes user authentication, role-based access control, subscription billing with Stripe, admin dashboard, REST API layer, and responsive frontend built with React or Next.js.

What's included:
→ Multi-tenant architecture designed for scalability
→ Stripe subscription billing and payment management
→ Role-based access control (admin, user, team roles)
→ Real-time dashboard with analytics and reporting
→ REST API backend with Node.js or NestJS
→ MongoDB or PostgreSQL database design
→ AWS deployment with CI/CD pipeline
→ Full source code, documentation, and handoff

I've built SaaS platforms for fintech, healthcare, real estate, and security industries. 14+ years of full-stack development experience, 100% Job Success Score on Upwork.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security
What's included
Service Tiers Starter
$4,000
Standard
$6,500
Advanced
$10,000
Delivery Time 30 days 45 days 70 days
Number of Revisions
235
Number of Pages
61015
Design Customization
-
Content Upload
-
-
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$500 - $2,000
4.8
17 reviews
94% Complete
1% Complete
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SS

Shruti S.
2.00
Aug 13, 2026
Nutritionist Website Development with SEO Optimization

EG

Emily G.
5.00
Jul 27, 2026
Web-Based Online App Development The team at BeeSolver are AMAZING!! I don't have words to describe how impressed I have been with their customer service, their consistency, the quality of the work, and their patience and quiet persistence in bringing a big and detailed web-based app project to life. We worked together for 10 months and they never dropped the ball. They were in constant communication, letting me know what stage the project was at all time, and I felt incredibly supported as a client. They have my full trust (that can be hard when working with OS developers) and I would highly recommend working with them! I have already referred other people to them who are also pleased with Sumit and the team. Thank you!

NF

Nicola F.
5.00
May 12, 2026
Website Development for Informative Business I will surely work with Beesolver again in the future. They were great.

BB

Benedict B.
5.00
Apr 24, 2026
Laravel + Vuejs developer for Event Management Startup Sumit helped me a lot, thanks Sumit.

DB

David B.
5.00
Apr 13, 2026
App Development for Chain of Custody Compliance in Medical Courier Services Working with Sumit and the team has been a great experience. He is very transparent with his progress, providing technical breakdowns and UI updates at every major hour mark. He has been instrumental in helping me architect the backend for my SaaS platform. Professional, timely, and easy to work with. I’m looking forward to continuing our partnership on the next stage of this build.
sumit S.Status: Offline

About sumit

sumit S.Status: Offline
Full-Stack Developer | React & Node.js | SaaS, APIs & Web Apps
96% Job Success
4.8  (17 reviews)
Mohali, India - 9:51 pm local time
Full-stack developer building production MERN and Next.js apps, with NestJS backends and REST APIs. Seven years shipping enterprise web applications in healthcare, POS, and payments, from requirements to production, not demos that work once.

Here's what that looks like in practice:

HEALTHCARE ENTERPRISE PORTALS
Lead full-stack development on EMHware, a medical enterprise portal serving healthcare organizations at scale. React, TypeScript, Next.js, and Laravel, from requirements through production, with real gains in page load time and accessibility.

POS, INVENTORY MANAGEMENT & PAYMENTS
Built core features for BottlePOS, an enterprise point-of-sale platform for multi-location retail chains: inventory management, sales reporting, PAX terminal integration for in-store card payments, and Stripe. The parts that have to work every time, because money moves through them.

CUSTOM PRODUCT CONFIGURATION & UI
Built VarsityCart, a web platform with real-time, pixel-perfect product customization, letting customers apply and preview designs before buying.

TECH STACK
Frontend: React, Next.js, TypeScript, JavaScript (ES6+), Tailwind, Angular
Backend: Node.js, NestJS, Express, Laravel, Core PHP, Python, REST & GraphQL APIs
Data: MongoDB, PostgreSQL, MySQL, Redis
Cloud & DevOps: AWS, GCP, Firebase, Docker, CI/CD, Vercel, Git
Auth: OAuth 2.0, Okta, SSO, JWT

I also build AI features into apps when a project calls for it: chatbots, document Q&A, and OpenAI-based workflows integrated into products that are already in production.

If you've got a full-stack build, a legacy system that needs modernizing, or a payment integration to get right, send me a message and tell me what you're working on.

Steps for completing your project

After purchasing the project, send requirements so sumit can start the project.

Delivery time starts when sumit receives requirements from you.

sumit works on your project following the steps below.

Revisions may occur after the delivery date.

Discovery and Product Scoping

We define your SaaS product requirements, user roles, subscription model, and core features.

Architecture and Database Design

I design the multi-tenant architecture, database schema, API structure, and third-party integrations.

Review the work, release payment, and leave feedback to sumit.