Custom platforms — e-commerce stores, SaaS products, booking engines, inventory systems, dealer portals — engineered for the complexity templates can't handle.
30+ projects shipped · ₹5Cr+ client revenue processed · 12 industries · 100% source code ownership · India & international
B2B pricing, multi-warehouse inventory, or complex product logic — and the app store workarounds keep breaking.
Orders, invoices, inventory — managed manually. Your team is the bottleneck, not the business.
The site works until it doesn't. No one knows the code. You need a system with documentation and ownership.
You're doing serious business but your site makes you look like a startup from 2018. Templates can't carry your weight.
Booking engine, dealer portal, inventory sync, payment orchestration — you're not building pages, you're building operations.
You're profitable on marketplaces but you want your own store, your own data, your own brand. Without starting from zero.
CRM, invoicing, inventory, communication, reporting — all in separate apps. You need one platform that talks to itself.
SaaS platform, mobile app, LMS, booking engine — something that needs users, roles, payments, and business logic. Not a brochure with a contact form.
₹5Cr+
Revenue processed for clients
300+
Dealers onboarded to portal
0%
Overselling after launch
30+
Projects shipped across 12 industries
99.9%
Uptime across all managed platforms
Full platforms with user roles, business logic, and production traffic. We build them. We maintain them. We license them.
Hardware compatibility validation engine processing 5,000+ rules in real time.
Zero invalid configurations shipped since launch.
Next.js · Custom Logic Engine · PostgreSQL · Redis · Supabase
Real-time inventory sync across warehouses, e-commerce platforms, and offline POS.
0% overselling. 85% reduction in stock discrepancies.
Node.js · PostgreSQL · Redis · Webhooks · REST APIs · Supabase
End-to-end sales pipeline with GST-compliant invoicing, payment tracking, and automated follow-ups.
70% faster lead response. 95% less manual invoicing.
Next.js · Supabase · PostgreSQL · Node.js · Razorpay API · WhatsApp Business API
Multi-role scheduling system for clinics, gyms, salons, spas, and service businesses.
70% of appointments booked online. Phone bookings dropped to zero.
Next.js · Supabase · PostgreSQL · Razorpay · WhatsApp Business API · Google Calendar API
Full learning management system with student, parent, teacher, and admin roles.
5,000+ families registered. 78% course completion rate.
Next.js · React Native · Supabase · PostgreSQL · Redis · OpenAI · WebRTC
Built with
We choose the stack based on the problem, not the trend. These are the technologies we've shipped production code with.
Frontend
Next.js · React · TypeScript · Tailwind CSS
Backend
Node.js · Python · PostgreSQL · Redis · Supabase
Infrastructure
AWS · Vercel · Docker
Mobile
React Native · Flutter
E-Commerce
Shopify · WooCommerce · WordPress
AI & Automation
OpenAI · LangChain · n8n
Payments
Razorpay · Stripe · UPI · Cashfree · PhonePe
Integrations
Tally ERP · WhatsApp Business API · Shiprocket · Google Analytics
Design
Figma · Framer · Lottie
We specialize in complex systems. These are the industries where that complexity shows up most.
The thread is the same in all of them: every project starts with understanding what's broken, not with choosing a platform.
We architect the solution. The stack follows from that.
We've shipped production systems across e-commerce, healthcare, education, finance, interior design, infrastructure, and industrial supply chains. The domain changes. The engineering discipline doesn't.
How we deliver
We learn what's broken.
A 45-minute call where you explain the problem and we determine if custom engineering is the right solution — or if something simpler exists.
We choose the right stack.
You get a technical proposal: platform choice, data architecture, integration map, timeline, and a fixed price. Before any code is written.
Weekly demos. Short loops.
Two-week sprints. You see working software every Friday. If something's wrong, we catch it in days, not months.
Launch + 30-day support.
We deploy to production, run load tests, monitor for 30 working days, and fix anything that breaks — included in the project price.
Own your code. No lock-in.
Full source code, documentation, and architecture guide. You can take it to any team. We offer ongoing maintenance if you want it.
If you've already designed the solution, you need a contractor. We're not contractors.
Most agencies ask what you want built. We ask what's broken in your operations — and build from there. If that means changing what you originally asked for, we'll tell you.
100% of projects started with a discovery call, not a spec document.
No platform dependency. No lock-in to us. You get the source, the documentation, the architecture decisions. Take it anywhere, anytime.
30+ codebases handed over with full documentation and zero lock-in.
GST invoicing, Razorpay, UPI, Tally ERP, WhatsApp Business API, regional language support, state-level compliance. Not added later. Built in from the start.
Next.js, PostgreSQL, Redis, Supabase, AWS. Not because they're trendy — because they're what survives at 10x the traffic you have today. Production-grade from day one. Not retrofitted later.
“We were manually checking PC part compatibility and still shipping invalid builds. Doondzn wrote a validation engine that catches every conflict before checkout — zero bad orders since launch.”
Balbir Rathore
CEO, BuildMyPC.in
“Our dealers used to order through WhatsApp groups and we'd manually enter everything into Tally. Doondzn built a portal that automated the entire chain — from dealer login to invoice generation.”
BestComputers Team
Operations, BestComputers.co.in
“We were sending PDF portfolios on WhatsApp. Doondzn gave us a website that ranks on Google and brought in 200% more project inquiries in the first quarter.”
Thar Interiors Team
Director, Thar Interiors
The questions we get most often. If yours isn't here, ask directly.
Ask us directly →Or call: +91 73514 15951
May 2026
When your store needs B2B pricing, multi-warehouse sync, or complex product logic — here's how to know if it's time to move.
Read article →May 2026
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Read article →Apr 2026
What you'll actually pay for a custom e-commerce platform in 2026 — broken down by stack, complexity, and timeline.
Read article →Most clients come with a solution in mind. My job is to find the problem underneath it.
Abhijeet Ray — Founder, DoonDzn
Tell us what's not working. We'll say what we'd build and whether we're the right people to build it.
Mon–Sat · 10:00–18:30 IST (UTC+5:30) · Response within one business day
