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Fiverr Pro
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$
USD
I will build a complete backend for your web or mobile app
Egor S.
About this gig
Need a reliable FastAPI backend for your web or mobile application?
I will build a clean, scalable, and production-ready REST API using Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, and Docker.
Depending on the package, your backend can include:
REST API endpoints
PostgreSQL database models and migrations
JWT authentication and refresh tokens
User roles and permissions
Third-party API integrations
Input validation and error handling
Swagger/OpenAPI documentation
Automated tests
Docker and Docker Compose
Deployment to a Linux server
I can also improve an existing FastAPI project, fix backend bugs, optimize database queries, and add new functionality.
You will receive organized source code, clear API documentation, and a backend designed for further development.
Please contact me before ordering. Send a short description of your project, required features, integrations, and deadline so I can confirm the correct package and delivery time.
Get to know Egor S.
Egor S.
Python Backend Engineer: FastAPI, APIs, Automation, AI
- FromVietnam
- Member sinceJul 2026
- Avg. response time1 hour
Languages
Russian, English
Hi, I’m Egor, a Python backend developer focused on APIs, automation, web scraping, and AI integrations.
I build production-ready backends with FastAPI, Django, Flask, PostgreSQL, MongoDB, Redis, Docker, and Celery. I also develop Telegram bots, high-volume scraping systems, third-party API integrations, and AI pipelines for text, audio, video, STT, translation, and TTS.
I can build from scratch, improve existing systems, optimize performance, deploy to production, and set up monitoring with Grafana and Loki.
Other Software Development Services I Offer
FAQ
What information do you need before starting?
Please send a description of your project, required API endpoints, database entities, authentication requirements, third-party integrations, expected deadline, and any existing code or documentation.
Can you work with an existing FastAPI project?
Yes. I can review an existing codebase, fix bugs, add endpoints, improve the project structure, optimize database queries, and integrate additional services.
Is deployment included?
Deployment is included in the Premium package. For Basic and Standard packages, production deployment can be added separately after reviewing your server and infrastructure requirements.
Will I receive the source code?
Yes. Source code is included in every package, together with the project configuration and API documentation.
Which database do you use?
PostgreSQL is the default database for this Gig. I can also work with SQLite, MongoDB, MySQL, and Redis when the project requires them.
Which database do you use?
PostgreSQL is the default database for this Gig. I can also work with SQLite, MongoDB, MySQL, and Redis when the project requires them.
Do you provide authentication and user roles?
JWT authentication is included in the Standard and Premium packages. Advanced roles and permissions are included in the Premium package or can be added as a custom extra.
Can you integrate external APIs?
Can you integrate external APIs?
What counts as one endpoint?
One endpoint is one API operation, such as creating a user, retrieving a list of items, updating a record, or deleting a record. Complex endpoints may require a custom quote.
