Web application development for startups & businesses.
Build fast, secure and scalable web applications with modern technologies including Next.js, React, TypeScript, Node.js and PostgreSQL.
- 5+ yearsProfessional experience
- 40k+Users across shipped projects
- DirectDeveloper communication
5+ yrs
building web applications
Earned through freelance work
Active users across projects
GitHub contributions
Professional experience
Production apps shipped & maintained
What I build
What can I build?
A website presents information; a web application is something users actively work in — logging in, managing data, triggering workflows, and seeing state change in response to what they do. That distinction shapes everything about how it's built: authentication and session handling instead of static pages, a database and API layer instead of flat content, and UI state that has to stay in sync with what's actually happening on the server. From SaaS platforms to real-time applications, every product here is built around that interaction model — for real users, real data, and production deployment, not a static front end with a form bolted on.
SaaS Applications
Subscription-based applications with user accounts, tiered billing, usage limits and dashboards that reflect what each customer is actually paying for.
Business Applications
Custom platforms designed around specific business workflows, with the forms, approval steps and reporting your operations already depend on.
Customer Portals
Authenticated applications where customers log in to view their own data, manage their account and take actions — not just read a static page.
Admin Dashboards
Role-based interfaces for managing users, content, transactions and analytics, built so different admin roles see only what's relevant to them.
Real-Time Applications
Applications where the UI updates the moment the underlying data changes — live collaboration, notifications and dashboards driven by WebSocket connections rather than manual refreshes.
AI Web Applications
Web applications with AI models, retrieval-augmented generation and automated workflows wired directly into the application's own data, not a separate chatbot tab.
Features
Web application features
Everything your web application needs, built as connected layers rather than isolated features: authentication with role-based permissions decides what a user can see before a single query runs, real-time updates — over WebSockets or polling, depending on how time-sensitive the data is — keep what a user sees in sync with what's actually happening on the server, and a REST API layer sits between the frontend and the database so business logic lives in one place instead of scattered across components. Need someone to own the whole build end to end? Hiring a full-stack developer means one person handles the interface, the logic, and the backend together, and if your stack is Next.js specifically, take a look at the Next.js developer page for that focus.
User Management
6 core tools
Application Logic
6 core tools
Backend
5 core tools
Payments
4 core tools
Administration
4 core tools
Let's build your web application.
Tell me what you're building. If your application is a subscription product, check out my dedicated SaaS MVP development service or learn about hiring a freelance web developer for ongoing design and feature updates.
Tech Stack
Technology stack
Next.js and React on the frontend with TypeScript throughout, Node.js and Express APIs backed by PostgreSQL or MongoDB — modeled through Prisma — and Redis where an application needs caching or session state faster than a database round-trip. Everything ships on Docker-based infrastructure on AWS or Vercel.
Frontend
4 core tools
Backend
3 core tools
Database
4 core tools
Infrastructure
5 core tools
AI
4 core tools
Selected work
Complete digital products, not just websites
SaaS platforms, AI systems, mobile apps, automation pipelines and business management platforms — designed, built and shipped for real clients.
Swasthify — Healthcare Management Platform
Swasthify is a fully stateful application, not a content site — doctors, laboratories, patients and administrators each authenticate into a different role-based view of the same underlying data, with health record uploads, report generation and a super admin dashboard all backed by a shared Node.js API and database rather than static pages.
Web platform + Android application supporting 10k+ users across projects.
Donation / NGO
Bring Smile — Donation Platform
A modern donation website designed to help organizations collect donations, communicate their mission and create a simple digital fundraising experience.
Donation / NGO
Plan to Empower — Donation Platform
A purpose-driven donation platform focused on connecting supporters with meaningful social initiatives through a clean and accessible digital experience.
Finance
Legal257 — Finance & Loan CMS
A stateful admin application for a lending business — the CMS, admin panel and customer-facing workflow all read and write against the same finance and loan data, so a status change in the backend is reflected immediately across every authenticated view.
Donation / NGO
Jonojivan — Donation Platform
A donation-focused digital platform built to support social initiatives, manage campaigns and provide an accessible contribution experience.
E-commerce
Jonojivan — E-commerce Platform
An e-commerce platform designed to manage products, customers, orders and online commerce workflows.
E-commerce
Cleanveda — E-commerce Platform
A complete e-commerce experience with product discovery, shopping workflows, order management and a powerful administrative backend.
AI
AI Voice Interview Platform — Real-time Voice Assessment
Built around a real-time interaction model rather than a request-response page load — the interview session runs as a live voice conversation with continuous AI evaluation, backed by Gemini and Vapi for the voice layer and ChromaDB for retrieval during the assessment.
Web Applications
ARP — Water Filter Platform
A digital platform created for water filtration products and services, supporting customer interaction, product presentation and business operations.
Factory Management Platform
Manufacturing ERP
A complete manufacturing management platform for managing factory operations, workforce, raw materials, agents, distributors, offers, inventory and sales from one centralized system.
AI Blog Automation Platform
Multi-worker AI automation system
An automated AI content publishing system built around multiple specialized workers, queue processing and a complete research-to-publication workflow — not just a blog CMS.
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More Web Development services
2 servicesCustom sites and web applications, built to spec.
Process
Web application development process
A clear, predictable process — from requirements to deployment.
Who I work with
How I can help
Building a new web app
Build a complete web application from scratch.
Modernizing an existing app
Upgrade or rebuild an existing web application.
Adding features
Add new features, integrations, or AI capabilities.
Requirements
Understand users, workflows and product requirements.
Architecture
Plan the frontend, backend, database and integrations.
UI Development
Build responsive and accessible interfaces.
Backend Development
Implement APIs, business logic and data management.
Integration
Connect payments, AI, email, external APIs and other services.
Testing
Test core workflows and application behavior.
Deployment
Deploy the application to production.
Pricing
Web application development cost
Pricing depends on functionality, number of user roles, integrations, backend complexity and infrastructure requirements.
Simple Web App
For simple web applications with core functionality.
Starting at ₹49,999
- Core functionality
- Authentication
- Basic dashboard
- Database & deployment
- 2–4 week timeline
- 30 days post-launch support
Business Web App
For businesses that need a complete web application.
Starting at ₹99,999
- Full web application
- Payment integration
- Admin panel
- Third-party integrations
- Advanced features
- 4–8 week timeline
- 30 days post-launch support
Complex / AI Web App
For complex applications with AI and advanced features.
Custom pricing
- Everything in Business
- AI integration
- Real-time features
- Complex workflows
- Advanced infrastructure
- 8–12+ week timeline
- 60 days post-launch support
Need a custom estimate?
Free project estimate
Tell me what you want to build.
Share a few details, links, or a brief. I’ll review the scope personally and reply with practical next steps and a rough estimate.
What happens next
- 01Tell me about your project
- 02Get a rough estimate
- 03Agree the scope and milestones
- 04Launch with post-launch support
WhatsApp me
The fastest way to reach me. Message me directly — or call me on WhatsApp if you'd rather talk it through.
Chat NowEmail me
Prefer writing it down? Send over the details, links, or docs — I'll get back to you within one working day.
support@devkitmarket.com
GitHub
LinkedInFAQ
Web application development — FAQs
Have a different question? Send a short brief directly — no obligation, no sales calls.
support@devkitmarket.comReady to build your web application?
Tell me about your idea, requirements or existing product and let's figure out the best way to build it.