Message

Backend and API development

I build backends for websites, apps and bots: APIs, business logic, database work and integrations. My main stack is Python with FastAPI, plus Django, Go or Node.js when the project needs them.

Discuss your project
Deliverable
A documented API deployed to a server
Stack
  • FastAPI
  • Django
  • Go
  • Node.js

01Scope

What you get

  • 01REST and GraphQL APIs documented in Swagger
  • 02WebSocket for chats, notifications and real-time features
  • 03Database schema, SQLAlchemy and Alembic migrations
  • 04Caching and task queues on Redis
  • 05Integrations: payment providers, CRMs, messengers, third-party APIs
  • 06Tests with pytest and error logging

02Use cases

What it’s for

  • API for a website and app

    One backend for every client of your product.

  • Shared core for a bot and a website

    Users, payments and orders in one database.

  • Service integration

    Keep data in sync between your CRM, inventory, payment provider and messengers.

  • High load

    Asynchronous processing, caching and background jobs.

03Process

How we’ll work

  1. 01

    Brief

    You describe the idea or the problem, I ask questions and suggest a solution.

  2. 02

    Estimate

    I pin down the scope, timeline and cost. Large projects are split into stages.

  3. 03

    Development

    I share progress along the way so feedback comes early, not at the end.

  4. 04

    Launch

    I deploy to a server, connect the domain and payments, and test on real devices.

  5. 05

    Support

    I stay in touch after release for fixes, improvements and new features.

04Cases

Related projects

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    StarsBoost

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    A service for buying and selling Telegram Stars, Premium, TON and gifts. I built the React website, the Telegram bot, the Mini App and the FastAPI backend with payments and automatic order delivery.

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    • Mini App
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  2. #01

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    A VPN service with a Telegram bot, a website and a customer portal: subscriptions, an admin panel and Remnawave integration. The aiogram bot and the Next.js site share one Python core and a FastAPI backend.

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    • aiogram
    • FastAPI
    • Remnawave
    Open websiteTelegram bot
  3. #02

    Ratsion

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    • FastAPI
    • Telegram Auth
    Open Mini App

05FAQ

Questions and answers

Why FastAPI?

It’s asynchronous, fast and generates API documentation from type hints. Django suits projects with a large admin area, and Go fits performance-critical services.

Will there be documentation?

Yes, the API is described automatically in Swagger/OpenAPI, so front-end developers and integrators can see every endpoint and call it from the browser.

Can you work on an existing backend?

Yes. I start by reviewing the code and architecture, then propose a plan: what to fix, what to speed up and how to add features safely.

How much does it cost and how long will it take?

It depends on the scope. Describe the task on Telegram — after a couple of clarifying questions I’ll give you a price and a timeline. Large projects are split into stages so you see results as we go.

How do we get started?

Message @vozaaz on Telegram: what needs to be built, whether you have a design or examples, and your deadline. If you have a spec, send it over — it speeds up the estimate.

07Contact

Got a task?
Let’s talk.

Tell me what needs to be built, your timeline and budget — I’ll suggest a solution and an estimate.

Telegram@vozaaz