Bohdan H

Python Developer

Fiverr • Freiberufler

Nov 2025 - Present • 6 mos

As a Freelance Python Developer, I specialize in building complex, high-performance Telegram bots and automated business systems. I focus on delivering scalable, custom backend solutions tailored to complex business logic, logistics, and e-commerce needs. Key Responsibilities & Achievements: Bot Architecture & Development: Designed and deployed advanced Telegram-based systems using Python and the Aiogram framework. Database Management: Architected relational databases (SQLAlchemy, PostgreSQL/SQLite) to handle product inventory, multi-tier user roles, and complex order histories. Role-Based Access Control (RBAC): Built secure, multi-level systems with dedicated workflows for Admins, Partners (Resellers), Drivers, and Customers. Dynamic Pricing Engines: Developed custom financial logic, including hybrid markup systems, VIP custom pricing, reseller commissions, and automated P&L reporting (CSV exports). Automated Workflows: Implemented seamless, state-driven user flows (FSM) for cart management, custom checkout processes, and real-time delivery dispatching. Client Success: Successfully delivered high-ticket automation projects, translating complex operational requirements into modular, maintainable code with exceptional post-launch support.