Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get Full Stack SaaS & Web App Development (React, Node.js, MongoDB)

Senthilnathan R.Status: Offline
Senthilnathan R. Senthilnathan R.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Senthilnathan, priced and ready to go.
Senthilnathan R.Status: Offline
Senthilnathan R. Senthilnathan R.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Senthilnathan, priced and ready to go.

Project details

Stop Searching for a Coder. Hire a Technical Partner.

Most apps fail due to poor architecture. I'm a Full Stack Developer who turns business
goals into scalable, market ready digital products bridging the gap between "concept"
and production ready SaaS with secure, future proof infrastructure.

Core Solutions & Expertise
⫸ Frontend : Responsive UI using React, Next.js, and Tailwind CSS.
⫸ Backend : Secure Node.js/Express with professional validation.
⫸ Data : Optimized structures using SQL, MongoDB, or Firebase.
⫸ Security : JWT, OAuth, and access control.
⫸ Features : Custom dashboards, payments, and API ecosystems.

Why Partner With Me?
⫸ Scalable Architecture : Clean, maintainable code that grows with you.
⫸ Production Ready : Stable, tested environments for real world traffic.
⫸ Platform Mastery : Full deployment on Vercel, AWS, and Render.
⫸ Proven Track Record : 5+ projects delivered in the last 2 months.

Workflow: Analysis → Architecture → Execution → Quality → Testing → Deployment.

Message me now for a free consultation on your technical roadmap!
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$60
Standard
$100
Advanced
$140
Delivery Time 1 day 5 days 13 days
Number of Revisions
369
Number of Pages
2510
Design Customization
Content Upload
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$40 - $70
Additional Revision
+$15
Additional Page (+ 1 Day)
+$15

Frequently asked questions

Senthilnathan R.Status: Offline

About Senthilnathan

Senthilnathan R.Status: Offline
Full Stack MERN & Next.Js Developer | AI Powered Web Apps & SaaS MVPs
Chennai, India - 2:54 pm local time
I help startup founders and businesses turn raw ideas into stable, high performance SaaS MVPs, desktop systems, and custom web platforms slashing manual overhead and building products designed to scale from day one.

Specializing in the MERN stack, Next.js, Electron, and AI integrated web architecture, I handle everything from complex full stack builds from scratch to critical bug fixes and performance optimization.

CORE EXPERTISE

⫸ AI Integration : Building LLM powered tools, automated workflows, and smart features using OpenAI's API.
⫸ Full Stack & Desktop : End to end MERN, Next.js, and Electron desktop platforms built with clean, modular code.
⫸ Scalable Architecture : Robust database schema design (MongoDB, SQL, SQLite), RESTful API development, and MVC architecture.
⫸ Security & Auth : JWT authentication, Role Based Access Control (RBAC), 2FA, and industry standard security best practices.
⫸ Performance & UX : Highly responsive, speed-optimized React, Tailwind CSS, and 3D/motion driven frontends.
⫸ Quality Assurance : Rigorous code refactoring, thorough testing, and bug free deployments.

RECENT WORK & PROVEN IMPACT

⫸ Sugam HMS (Desktop Hospital Management System)
• What I built : A production ready desktop app using Electron, Next.js, and SQLite with RBAC, POS billing (GST), and barcode inventory.
• Client Impact : Eliminated error prone paper records and slow spreadsheets, reducing checkout friction and saving staff hours of administrative data entry daily.

⫸ Cresto Physiotherapy & Clinic Platform
• What I built : A Full Stack booking system for a Bengaluru clinic featuring real-time therapist selection, automated WhatsApp/email confirmations, and a custom admin dashboard.
• Client Impact : Solved missed appointments and low local visibility, driving a frictionless booking journey that cut administrative scheduling phone calls by an estimated 70%+.

⫸ Rotaract Club Management System (Enterprise ERP)
• What I built : A secure, centralized MERN stack ERP platform featuring RBAC, 2FA, JWT authentication, automated financial reporting, and real time expense approval workflows.
• Client Impact : Replaced chaotic spreadsheets with a secure, accountable system, ensuring full audit trails, zero data discrepancies, and effortless year wise archival for club administration.

⫸ Laraspinal (Handcrafted E-Commerce Platform)
• What I built : A bespoke e-commerce platform custom built for handcrafted products with a seamless, conversion focused user journey.
• Client Impact : Clients reported a noticeable drop in cart abandonment and a smoother mobile responsive checkout experience, turning casual visitors into buyers.

I usually respond within a few hours and start every engagement with a quick technical audit of what you already have. If you need a reliable technical partner who treats your project like their own, let's talk about your goals and get started!

Steps for completing your project

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

Delivery time starts when Senthilnathan receives requirements from you.

Senthilnathan works on your project following the steps below.

Revisions may occur after the delivery date.

Requirement Analysis & Planning

I review your requirements and finalize the project scope, tech stack, and system architecture, including database structure and core feature list.

Backend & Database Setup

I set up the backend using Node.js/Express, design the database schema (MongoDB/SQL), and build secure REST APIs for core functionality.

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