Тетяна

Tanya Bondar
Python backend developer
[open contact info](look above in the "contact info" section) Cherkassy, Ukraine LinkedIn

GitHub

Summary
Python backend developer with three independently built and deployed projects spanning FastAPI, Django,
and async bot architecture — comfortable reading technical documentation in English. Comfortable owning
the full cycle...

Skills
Python 3.x FastAPI Django
PostgreSQL SQLAlchemy 2.0 Redis
Docker / Docker Compose Nginx Git

Projects
04/2026 – 08/2026 HomeMade
E-commerce Platform
Live demo · GitHub
Tech: Python 3.12, Django 6.0, Redis, PostgreSQL, Nginx, Docker
Built and deployed a Django e-commerce platform with Docker, PostgreSQL,
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Redis, Gunicorn and Nginx, including Google OAuth2, AJAX cart and dynamic
checkout validation.
Optimized catalog performance with pagination and image compression,
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reducing image assets from ~53 MB to ~9.8 MB.
Delivered a paginated production catalog with ~120 ms median / ~146 ms p95
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response time, benchmarked using ApacheBench (n=100) across representative
pages.

03/2026 – 05/2026 Credits & Plans
Asynchronous Financial Analytics System
Tech: FastAPI, Pandas, PostgreSQL, SQLAlchemy 2.0, Docker.
Built an asynchronous FastAPI financial analytics system with PostgreSQL,
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processing 50K+ records per ETL run (users, credits, payments, plans).
Delivered 85–132 ms average production response times across key analytics
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endpoints, benchmarked with ApacheBench (n=100, c=1).
Implemented validation for invalid dates, empty amounts and duplicate plans
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during data import.

02/2026 – 03/2026 CafeSmile
Backend-Powered Telegram Ordering System
Tech: Python, Aiogram 3.x, PostgreSQL, SQLAlchemy 2.0, Docker.
Production Telegram ordering bot built with Aiogram, SQLAlchemy and
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PostgreSQL.
Implemented a 3-state FSM for the complete order flow, asynchronous database
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operations, cart management and online/cash payment processing.
Deployed and actively maintained in production since February 2026.
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