Available for remote B2B contracts globally
Telegram Mini App development services
I build Mini Apps and payment bots as a senior web engineer — Next.js, React, webhooks, Stripe / LiqPay / Monobank / TON. Direct contractor, not an agency. 8+ years in production, 4,200+ Upwork hours.
What can you order in Telegram?
- Telegram Mini Apps on Next.js / React — catalog, calendar, checkout, account.
- Payment bots: Stripe, LiqPay, Monobank, Telegram invoices, TON / crypto.
- Booking with deposit, shops, courses, subscriptions, delivery utilities.
- Same codebase as Mini App and PWA when part of the audience is outside Telegram.
How does a Mini App project start?
- 1A short email with the job: book, sell, collect, remind. Constraint first — one specialist, one SKU, one payment.
- 2Smallest Mini App or bot that can take a real payment this month. Manual ops behind the UI are allowed.
- 3Then iterate: reminders, refunds, a second specialist — after the first loop closes.
Questions about Telegram Mini Apps
Do you build Mini Apps or only chat bots?
Both. A catalog, calendar, or checkout belongs in a Mini App. A reminder or invoice can stay in chat. I pick the surface from the job, not from a trend.
Which payments can you wire?
Stripe, LiqPay, Monobank, Telegram invoices, and TON / crypto checkout where the audience is already in Web3. The payment is part of the product, not a plugin afterthought.
How long is a first version?
A bounded MVP — one flow that takes a real payment or a real booking — is usually weeks, not a quarter. Scope stays on the email thread, not in a 40-page brief.
Notes on how I build this
Let's discuss a Mini App
Send the constraint and the job. I reply with what I would ship first — and what I would refuse.
i.vynnychenko@gmail.com
Also shipping: Website development, Web apps, AI solutions