Python backend developer

Sergei Pashkovskii

I build backend systems end-to-end, from API design and data models to Dockerized deployments.

Python developer working with FastAPI and Django on APIs, bots, integrations, data collection, and AI-powered features.

About me

I'm a Python backend developer who likes owning a project from the first commit to a running production deployment. I specialize in APIs, bots, third-party integrations, data collection, and adding AI features to products.

I care about the parts that make a backend hold up in the real world: well-thought-out data models, clear and predictable APIs, and an environment that's easy to reproduce. I handle deployment myself too, so I can take a product from an empty repo to automated releases without a separate DevOps person.

I work independently: breaking down a vague problem, picking a sensible approach, and delivering features end-to-end without hand-holding. I write code the next person can actually read, and I keep communication simple and honest.

Selected Work

Foodgram

Recipe-sharing platform where users publish their own dishes, follow authors, bookmark favorites, filter by tags and download a shopping list with ingredient amounts totaled automatically.
- Django REST API
- React
- PostgreSQL
- Docker
- GitHub Actions CI/CD
Try it live
DineTogether

Backend service for booking tables in cafes and restaurants. Async REST API with JWT authentication and role-based access (user, manager, admin). Guests reserve one or more tables for chosen time slots; managers and admins control venues, tables, slots and users. Celery automatically sends booking reminders and notifications, the service logs key actions and errors, and Alembic automatically checks and applies migrations on every deploy. API documentation is available in Swagger UI and ReDoc.
- Python
- FastAPI
- Pydantic
- SQLAlchemy
- Alembic
- PostgreSQL
- JWT auth
- Celery
- Docker
- Nginx
- CI/CD
View on GitHub

Experience

Backend Developer — Freelance October 2025–Present
- Owned the full development lifecycle, from gathering client requirements to deploying the finished solution to production.
- Built backend solutions, including APIs, bots, integrations, and data tools, that helped clients run their businesses more efficiently and earn more.

Skills

Backend

Python, FastAPI, Django, SQLAlchemy, Pydantic, Alembic, Scrapy, aiogram, SQL, PostgreSQL, Celery

DevOps and tools

Git, Docker, CI/CD, GitHub Actions, Linux

AI

Prompt Engineering, API integrations

Let's build something

Open to freelance projects/contracts and full-time backend roles.

sergei.pashkovskii@outlook.com