About

Work Experience

• Python Backend Developer, TUNNEL sp. z o.o.

  Jun, 2026 - Present

  Lead developer of e-commerce and booking platforms delivered by the company for clients in Poland and Belarus, as well as internal products for the TUNNEL gaming club

  • Delivered a production online flower shop (gigiflowers.pl) from data model to public release

  • Leading backend development of an online bookstore for Poppuri, a major Belarusian book publisher

  • Integrated payment providers (Stripe, Przelewy24) and InPost parcel-locker delivery into checkout flows

  • Designing a custom seat booking system for an 18-seat gaming club, integrated with the Senet club management platform

  • Prevented double bookings at the database level with PostgreSQL GiST exclusion constraints on time ranges

  • Designed lazy seat assignment and an append-only ledger for prepaid pass balances, keeping every balance change auditable

  • Handled timezone and business-day logic for a venue operating past midnight (until 03:00)

  • Evaluated Polish payment gateways (Paynow, Przelewy24) for low-value transactions against fees and consumer refund requirements

  • Own infrastructure end-to-end: Docker Compose, nginx, Cloudflare DNS and Hetzner Cloud servers

• Python Developer, MPR-Serwis

  Jan, 2024 - Present

  Developed full-stack logistics platform and data scraping solutions for construction company

  • Designed FastAPI-based REST API with JWT authentication and role-based access control (Worker, Manager, Warehouse, Admin)

  • Built async database layer with SQLAlchemy 2.0 and PostgreSQL, including Alembic migrations

  • Developed platform serving 50+ daily users, processing 150 orders and 250 warehouse operations

  • Containerized applications using Docker and Docker Compose

  • Created Telegram bot interface for order management using aiogram

  • Built web scraping pipelines for market data collection

Projects Experience

• Poppuri BookShop — E-commerce Platform for a Book Publisher, Poppuri Publishing

  Jun, 2026 - Present

  Online bookstore for Poppuri, one of the best-known book publishers in Belarus. Leading development of a full-cycle e-commerce platform: multilingual catalog with fuzzy search, cart and checkout, online payments and parcel-locker delivery, plus an admin panel for managing the catalog. Currently in active development. Tech: FastAPI, async SQLAlchemy 2.0, asyncpg, PostgreSQL, Redis, Next.js, React Admin, Docker.

  • Lead developer: own the system architecture, data model and end-to-end delivery of the backend

  • Built a fully async API layer with FastAPI, SQLAlchemy 2.0 and asyncpg on PostgreSQL; schema evolution managed with Alembic

  • Implemented typo-tolerant catalog search with PostgreSQL pg_trgm and GIN indexes across a multilingual catalog

  • Integrated Przelewy24 online payments and InPost parcel-locker delivery (Geowidget + API) into the checkout flow

  • Used Redis for caching and short-lived application state

  • Secured user accounts with Argon2 password hashing; typed environment configuration via pydantic-settings

  • Built bulk catalog import/export from Excel (openpyxl) and server-side image processing with Pillow

  • Containerized the stack with Docker Compose and deployed a demo environment to Hetzner Cloud

• GigiFlowers — Online Flower Shop

  Jul, 2026 - Present

  Production e-commerce website for a flower shop, live at gigiflowers.pl. Led the project from data model and payment flow to deployment and public release. Tech: FastAPI, SQLAlchemy 2.0, PostgreSQL, Jinja2, Stripe, nginx, Cloudflare, Hetzner Cloud.

  • Lead developer: designed and shipped the platform from scratch to production release

  • Built the backend on FastAPI with SQLAlchemy 2.0 and PostgreSQL (psycopg 3), with Alembic migrations

  • Server-side rendered storefront with Jinja2 templates for fast page loads and SEO

  • Integrated Stripe for online payment processing

  • Implemented transactional email notifications, covered by integration tests against a local SMTP server (aiosmtpd)

  • Product image uploads and processing with Pillow; Markdown-based rich content via markdown-it-py

  • Automated test suite with pytest; linting and formatting enforced with Ruff

  • Deployed to Hetzner Cloud behind nginx with Cloudflare DNS, served by Uvicorn with uvloop

• Hema — Gym Management Platform

  - Present

  Production backend for a real gym, used daily by staff to manage clients, payments and attendance. Designed the architecture around SOLID/OOP principles with a service-repository layer on top of async SQLAlchemy 2.0. Built a client balance engine combining subqueries, LEFT JOINs and COALESCE to reconcile payments and visit history into a single accurate balance. Implemented an end-to-end QR-code attendance flow, from code generation and scanning to real-time check-in logging. Tech: FastAPI, async SQLAlchemy 2.0, PostgreSQL, Vite/React/TS/MUI frontend.

• Corporate logistic tool

  Sep, 2025 - Present

  Developed logistics platform processing 150+ daily orders, reducing manual data entry by 40%. Supports 50 active users with real-time warehouse tracking. Tech: FastAPI, PostgreSQL, SQLAlchemy, Pydantic, Alembic, Docker

• Order Bot

  Aug, 2025 - Present

  MVP Telegram bot for construction material ordering workflow. Multi-role system (Worker, Manager, Warehouse, Admin) with async architecture. Tech: Python, Aiogram, PostgreSQL, Asyncio, Docker

• Steam Scraper

  Feb, 2025 - Present

  Web scraper collecting Steam Market pricing data. Dockerized with Scrapyd and ScrapydWeb for job orchestration. Telegram bot interface for user queries. Tech: Python, Scrapy, PostgreSQL, Aiogram, Docker

Skills