I build SaaS products.
You can hire me to build yours.
I turn startup ideas into production-ready MVPs in 4 weeks.
Currently building Appointor in public.
About Me
Hey, I'm Jatin Kumar.
I'm a full-stack developer who builds web applications. I work with React, Node.js, and PostgreSQL.
Right now I'm building Appointor - a booking system for freelancers and indie hackers. I'm also available for freelance work helping startups build their MVPs.
If you need an MVP built or want to try Appointor, reach out.
Technical Expertise
A deep dive into my capabilities as a full-stack product engineer.
SaaS Architecture
Building scalable, multi-tenant applications with robust authentication and authorization.
Backend Logic
Developing complex server-side logic, API routers, and edge functions.
Database Design
Designing normalized schemas and efficient queries for data-heavy applications.
API Integrations
Seamlessly connecting third-party services like Razorpay, Twilio, and OpenAI.
Frontend Engineering
Crafting pixel-perfect, accessible, and performant user interfaces.
Tools & Deployment
Essential workflows for version control, design, and CD.
Engineering Foundations
Strong grasp of computer science fundamentals and modern theories.
Appointor: Full-Stack Booking Platform
A comprehensive SaaS solving appointment chaos for coaches and consultants.
Multi-Tenant Architecture
Each business gets a branded portal and separated database.
Razorpay Payments
Integrated payment gateway for advance bookings and automatic order tracking.
Smart Scheduling
Conflict-free slots with timezone support for multiple staff members.
Secure Authentication
JWT-based auth with Supabase RLS policies for complete data isolation.
Admin Dashboard
Manage bookings, services, staff availability, and client insights.
Custom Branding
Fully customizable booking pages that match your clients' brand identity.
Why Businesses Choose Appointor
Save 15+ Hours/Week
Eliminate the back-and-forth updates on WhatsApp and Email. Let the system handle scheduling 24/7.
Increase Revenue
Reduce no-shows with advance payments and automated reminders. Fill your calendar effortlessly.
Professional Image
Give your clients a seamless, branded booking experience that builds trust and authority.
Live Demo Credentials: admin@demo.com / password123
Need an MVP? I Ship Fast.
Most developers write code. I build businesses. Here is my 4-week process to get your idea to market.
Week 1: Architecture
Database schema, UI flows, and tech stack selection. We lay a rock-solid foundation.
Week 2-3: Development
High-velocity coding. Auth, payments, core features. I ship updates every 48 hours.
Week 4: Launch
SEO optimization, analytics setup, and production deployment. Ready for real users.
Ready to build?
My typical engagement is $600 - $2000 for a complete MVP delivered in 30 days. I currently have 3 slots open
Book a Strategy CallSelected Work
From future visions to shipped software.
Enact AI
An AI-powered SaaS platform that transforms self-help book knowledge into actionable tasks. Users upload book page images, receive AI-generated tasks, and submit proof of completion—bridging the gap between reading and doing.
