Creating a Mini App in Telegram

Budget: 27000 UAH Deadline: 21 days

Good day. I am ready to start working today. I have experience in performing similar tasks. Let's discuss the details in a private chat.

Budget: 27000 UAH Deadline: 20 days

Hello, Kateryna! 👋
My name is Semen, I am a fullstack developer with experience in creating Telegram Mini Apps, as well as integrations for cryptocurrency services (including P2P, Binance API, exchanges, payment gateways, etc.). I am ready to develop a functional, fast, and secure Mini App for a cryptocurrency exchange tailored to your business needs.

🔧 Capabilities I can implement:
Authorization via Telegram and verification
Currency exchange calculator with live rates
Support for major cryptocurrencies (BTC, ETH, USDT, TON, etc.)
Integration with the exchange or trading platform API (for example, Binance, Whitebit, CoinMarketCap)
Personal account: transaction history, statuses, support
Messages/notifications in Telegram or email
Adaptive UX according to Telegram Web App Guidelines
Secure request processing + anti-fraud logic

📲 Technology stack:
NestJS / Node.js + PostgreSQL / MongoDB + Telegram WebApp SDK + React / Vue + Redis / Webhooks / Docker
(I also have experience with Python bots if backend for Mini App is needed)

💰 Budget:
from $1000+ — depending on functionality, API, type of integration, and role of the Mini App (showcase or full-fledged system)

🕒 Timeline:
from 10 to 20 days — we will discuss the details, I will show the first prototype quickly

📎 Examples of work / cases:
🔹 Telegram Mini App for the P2P team of Binance Institutional with subaccount support
🔹 Bot for automating the exchange via Binance API + statistics in Google Sheets
🔹 Platform for internal trading with order, client, and limit accounting

I am ready to discuss the details of your project, propose architecture, API structure, and optimal interaction scenarios. I will also assist with launch, hosting (Render / Vercel / VPS), and further support.

Contact me in a convenient way — I will respond quickly.
I would be happy to implement a powerful crypto service for you in the Telegram Mini App format 💻🚀

Best regards,
Semen | Web & Telegram developer Expand

Budget: 27000 UAH Deadline: 14 days

Hello. I am currently working on a similar project and also have experience in creating exchanges in semi-automatic mode. Let's discuss the terms of cooperation and what exactly you want to see in the finished product.

Budget: 27000 UAH Deadline: 28 days

Hello, we specialize in the development of Telegram Web App, we already have many completed projects and satisfied clients in our portfolio. We implement everything with quality and according to your wishes. I would be happy to discuss the project and further cooperation 🤝

Budget: 27000 UAH Deadline: 17 days

Доброго дня, готовий виконати.
Проект цікавий, потребує якісної роботи.
Деталі в особисті.
----------------------------
Hello, I am ready to do it.
The project is interesting and requires quality work.
Details in person.

Budget: 27000 UAH Deadline: 30 days

Good day!
Write to me, we will schedule a meeting, discuss the details, and get started.
Respectfully, Andriy!

Budget: 27000 UAH Deadline: 14 days

Hello, I have over 5 years of experience in chatbot development, and I am currently actively moving towards mini apps. So far, I have only developed 1 mini app, but this is due to the inability of clients to finance such projects!)

I would be happy to discuss your project and work together! I look forward to your message.

Budget: 27000 UAH Deadline: 1 day

Hello, Kateryna

Can you provide more details in a private message for a more accurate assessment?
Thank you.

Budget: 27000 UAH Deadline: 1 day

Good afternoon - we develop frameworks on Lavarell and mobile applications on IOS and Android turnkey.
Projects:
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We develop websites on PHP and mobile applications for IOS and Android.
We have experience in creating CRM/ERP systems.
We are ready to fulfill your order turnkey.
Good afternoon, we develop websites on Wordpress and mobile applications for IOS and Android. The total experience in development is 7 years. We are ready to fulfill your order turnkey.
1. Projects
https://berkanaplus.com.ua/ - I transferred and configured the server for this site.
2. https://leondesign.kyiv.ua/
Updates of PHP version and plugin updates.
3. https://peg.com.ua/
Development of a new module for the site for dynamic updating of product prices.
https://uvali.com.ua/
Configuration of a dedicated VPS server. Expand

Budget: 27000 UAH Deadline: 1 day

Hello, I am making a mini-app for Telegram. I can also develop one for you for your project. Write to me and we will discuss everything, and I will do it for you at the highest level)

I am waiting for you)

Budget: 27000 UAH Deadline: 1 day

Hello. I have experience in developing Telegram Mini Apps. Ready to collaborate.