I'm KumaDev, a freelance full-stack developer. I build landing pages, ERP, SaaS and artificial intelligence applications, from first commit to deploy.
drag the pieces
why me
A pretty website doesn't pay the bills. What pays them is the order coming in, the invoice going out and someone answering the phone. That's what I build.
work
Public sites you can visit right now, and private systems I can't show from the inside, so I show you how they work.
01 · Voice agent · private system
A real-time voice agent answers support calls 24/7, in English and Spanish, grounded in a knowledge base. Includes a fleet dashboard, a mobile app and billing.
02 · Live website
Commercial signage and vehicle wraps. An Astro site the client edits himself with Decap CMS, without needing me for every change.
03 · Live website
Custom cabinetry. The same self-editing CMS pattern, with a video gallery that shows the craft.
04 · B2B commerce · private system
B2B orders that create the QuickBooks invoice and send a WhatsApp notice automatically. Nobody copies data by hand again.
05 · Online store · private system
Ice cream store selling directly to customers, with a decoupled payment bridge and redundant VPS hosting.
ERP-style costing tool for production sheets: material consumption, cost summaries and Excel export from templates.
Django · Argon dashboard · openpyxl
LAN file server with a web file explorer: upload, browse and zip-download folders from any device on the network.
Express · Multer · Archiver
capabilities
Fast sites and dashboards, usually wired to a CMS the client can run alone.
Astro · Next.js · React
Agents that take calls in real time: speech to text, reasoning and text to speech in one conversation, grounded in a knowledge base.
OpenAI Realtime · Azure Communication Services
REST APIs, background jobs and retry queues.
Django · FastAPI · Celery · Node · Express
The pieces your business already depends on, talking to each other.
QuickBooks · WhatsApp Business API · Payment gateways
Apps that share a backend with the web dashboard.
React Native
Releases that ship on push, not by hand.
GitHub Actions · VPS · PostgreSQL · Redis
pricing
Two prices up front. The third one we agree on in a conversation.
$300 USD
SEO-optimized and tailored to your taste.
From $800 USD
The system you run your business on, or the software you're going to sell.
Custom
Apps that use artificial intelligence or need to train it. Every case is different, so we agree on the price directly.
contact
Tell me what needs to happen in your business: the order, the invoice, the call. I'll tell you what it takes to make it work.
Email me directly
kumadev77@gmail.com