Telegram Mini App Developer

Budget: 27000 UAH Deadline: 5 days

Hello, Nikita! I will bring your technical ideas to life by creating a Telegram Mini App for fintech projects. With my experience in development using React/Next.js and integrating complex APIs, I can quickly implement integration with KYC and web3 wallets, ensuring secure management of crypto cards. My proficiency in PostgreSQL and FastAPI guarantees that your system will be reliable and scalable. I am ready to collaborate to achieve your goals in the world of financial technology, implementing practical solutions for lasting success.

Budget: 27000 UAH Deadline: 31 days

📌Hello.👋
⭐️My name is Andrey.
⭐️My work experience: 12 years+

• ➡️I can show works specifically on Telegram Mini App + Backend
• 🎨Portfolio: Freelancehunt
• ✅Work rating on Behance (over 500,000 views)
• 💼More works here: Dribbble

Budget: 20000 UAH Deadline: 30 days

Hello.

I am developing bots for Telegram using NodeJS. I am ready to take on the task. Write to me, and we will discuss.

Budget: 27000 UAH Deadline: 5 days

Hello! We are the Cursed Team, and developing high-load Telegram solutions is our priority. We have extensive experience in creating complex bots in Python, so your Telegram Mini App project in the Fintech sector is very clear to us.

Our technical solutions for your project:

Backend and logic: We will implement a fast and secure API on FastAPI, ensure reliable operation with PostgreSQL, and integrate with KYC providers via Webhooks.

Web3 and Crypto: We have an understanding of the logic of working with USDT and connecting wallets for managing the balance of crypto cards.

Telegram Mini App: We will create a modern UI on React/Next.js, which will be perfectly integrated into Telegram and provide a smooth user experience.

Security: We will set up rate limiting, transaction protection, and stable deployment with CI/CD.

Why us: We have already developed a similar model of a complex system in 4 days. We can demonstrate our work in architecture so you can see our approach to coding. Since there are two of us, we will divide the work between Frontend and Backend, which guarantees high development speed without compromising quality.

We are confident in our abilities, so we offer a scheme: completing key stages, demonstrating results, and only then payment. When would it be convenient for you to discuss the technical details of the architecture? Expand

Budget: 25000 UAH Deadline: 30 days

Hello, I am ready to take on the work and complete it for 25,000 UAH. Write to me, I will be happy to collaborate.

Budget: 20000 UAH Deadline: 30 days

I will create a miniapp for a Telegram bot. I have experience in developing miniapps. It will be a very good product.

Budget: 20000 UAH Deadline: 10 days

Hello!

My name is Dmitry, I am the co-founder of KingKongWeb. We create Telegram Mini Apps, Web3, and fintech projects from scratch — from the interface in Telegram to backend, wallets, and integrations with KYC and payment providers.

The project with the crypto card is very similar to what we have already done:
Telegram → authorization → USDT wallet → KYC → balance → transactions → card → webhooks → backend.

We work with:
• Telegram WebApp (React / Next.js),
• FastAPI / Node.js,
• PostgreSQL, Redis,
• wallet logic and on-chain deposits,
• KYC providers (Sumsub, Veriff, etc.),
• crypto card API.

We know how to design such systems so that it is not just a "bot," but a proper fintech product that can be scaled and safely operated.

It makes more sense to discuss timelines and budget in personal communication after understanding the details (card provider, networks, KYC, geography). Expand

Budget: 20000 UAH Deadline: 10 days

Hello, I have worked with fintech applications, on the backend I have worked with both Fast API and Node, and here the year is clearly better. The frontend is in React, as I believe Next is not particularly needed here. I would be happy to work, I can send my GitHub in a private message.

Budget: 27000 UAH Deadline: 35 days

Hello!
I am interested in your project Telegram Mini App in the fintech / Web3 field.

I am a full-stack backend-oriented developer with real experience in a ready-made on-chain product that is in production and integrated with Telegram Mini App and Telegram Bot API.

My experience includes:

Telegram Mini App (React) + authorization via Telegram

Backend API for financial logic

Working with Web3 (USDT, ERC20, balances, transactions)

Webhooks, rate-limit, security

PostgreSQL / Redis

Production deployment and support

I have already gone through the full cycle: Telegram → backend → Web3 → production, so I understand fintech risks and the architecture of such systems well.

I am ready to engage in 1–2 months of active development with further support.
I would be happy to discuss the details and architecture. Expand

Budget: 20000 UAH Deadline: 20 days

Good afternoon
I am a Unity game developer,
I have my own team with which we can implement a game in Telegram (frontend + backend)
For work, a complete technical specification is needed, where it will be described what exactly needs to be done and how it should work, let's discuss everything in private messages.

Budget: 27000 UAH Deadline: 30 days

Hello! I understand the task — a Telegram Mini App for a crypto card with KYC, a Web3 wallet (USDT), balance and transaction management + Backend (FastAPI/Node.js) with integrations for the crypto card provider and KYC provider.

I have worked with the Telegram Bot API and created similar systems:
✅ Mini apps for crypto signals with coin cards and real-time tracking
✅ Private bots with integrations for Binance, Bybit, MEXC API
✅ Backend on FastAPI/Django with PostgreSQL + authorization via Telegram

I can show [choose_heart_bot](https://chooseheart.app) as an example of a TG mini app. Other projects I show only in private due to NDA.

More cases in [portfolio](https://stabioncorp.github.io/myportfolio/).

Estimated timeline: 1–2 months for MVP (depends on the complexity of KYC and crypto card provider integrations). I am ready for long-term support.

Clarifying questions:

1. What providers are there for KYC and crypto card (is there ready API documentation)?
2. Stack for Backend — FastAPI or Node.js (which is more convenient for your team)?
3. Is there a design or wireframes for the UI of the mini app? Expand

Budget: 27000 UAH Deadline: 30 days

Hello! I am engaged in the development of Telegram Mini Apps and full-stack solutions on React + Node.js, including Web3 integrations, wallets, and payment logic. I can implement a Mini App, a bot, and backend with KYC, USDT wallet, webhooks, and security, as well as prepare the project for production deployment and scaling. I am ready to join at the MVP stage within 1-2 months and continue supporting and developing the product after launch.

Budget: 20000 UAH Deadline: 2 days

Hello, Nikita! I have been creating Telegram applications for over a year, I can help with this, if you are interested, write and we will discuss! Quickly, qualitatively, inexpensively!

Budget: 20000 UAH Deadline: 20 days

Hello!
My name is Natalia, I am a web developer and a representative of AXION Studio with 5 years of experience. I am ready to develop your Telegram application, I have the appropriate stack and experience in this field. I will create the UI and logic immediately using React Next.js, and for the backend, I will also use Node.js. I will share other details with you individually, we will also create a plan and discuss the project in general. I am waiting for your message.

Budget: 27000 UAH Deadline: 1 day

Hello. I have extensive experience in developing Telegram mini apps. I am ready to collaborate.

Budget: 20000 UAH Deadline: 20 days

Ready to take on the task. I am a full-stack developer with extensive experience in Telegram Mini Apps and fintech projects. I will create the front end on Next.js with proper integration of the Telegram SDK and a focus on UX and speed, and the backend on FastAPI with clear architecture, security, and scalability from the very beginning.

I have practical experience with TMA, Telegram Bot API, webhooks, payment logic, KYC flows, working with web3 wallets, and USDT. I understand the requirements for financial products, rate limiting, logging, error handling, and 24/7 stability. I can cover the entire cycle from architecture to deployment and ongoing support.

I suggest we quickly discuss the details. Please tell me more about the crypto card provider and KYC, the current state of the project, and whether there are already any technical questions or limitations. After that, I will immediately propose the architecture, timelines, and format of collaboration.

Budget: 20000 UAH Deadline: 40 days

Hello.
You have a reliable fintech application Telegram Mini with real obligations regarding KYC, wallets, and cash flows, so clean architecture and strict separation between the user interface, API, and providers are key. I would manage the mini-application in React/Next.js with authorization in Telegram, and then I would create a secure backend (FastAPI or Node) to manage KYC, USDT balance logic, webhooks, and card provider integration with proper rate limits and idempotency. I have previously worked on Web3 and payment-related systems, so I focus on reliability, clear API contracts, and ensuring that nothing breaks under real user actions. I can complete the initial build in 1-2 months and remain for long-term support as the product grows.