Bohdan Tomchyshen

I'm Developer

About

I am a passionate software developer specializing in Python and Django, with strong skills in building scalable web applications and integrating complex systems.

Backend Developer (Python/Django)

With hands-on experience across freelance platforms and direct client work, I help businesses transform their ideas into fully functional digital products.

  • Website: tomchyshen.com.ua
  • Phone: +49 1525 5851574
  • City: Haiger, Germany
  • Degree: Bachelor in Computer Engineering
  • Email: btomchishen@icloud.com
  • Freelance: Available

Beyond coding, I focus on clean architecture, automation, and long-term maintainability, ensuring every project I deliver is reliable and future-proof.

Completed Projects Web, bots, integrations, etc.

Countries Reached Ukraine, USA, Canada, Costa Rica

Completed Projects Delivered to Production

Client Satisfaction Positive feedback

Skills

These are the core skills and expertise that I bring to every project and challenge.

Python 95%
Django 90%
FastAPI 90%
PostgreSQL 85%
Docker 80%
Stripe Integration 80%
Blockchain (Ethereum, BSC, Tron, BTC, LTC) 75%
Telegram Bots & WebApp 80%

Resume

Explore my professional journey, including education, work experience, and key achievements. This section highlights the skills and knowledge I’ve developed over the years.

Summary

Bohdan Tomchyshen

Full-stack freelancer turning ideas into functional web apps and bots. Skilled in Python, Django, FastAPI, JS and DevOps. I deliver clean, efficient code and enjoy collaborating with clients to bring projects to life.

  • Haiger, Germany
  • +49 1525 5851574
  • btomchishen@icloud.com

Education

Master's in Computer Engineering

2024 – present

Khmelnitskiy National University

Specialized in algorithms, system architecture, software engineering and database design.

Bachelor in Computer Engineering

2020 – 2024

Khmelnitskiy National University

Designing and programming computers and computer systems for general and special purposes, including mobile devices, the Internet, cyber-physical systems, and the Internet of Things (IoT); developing and using information technologies and systems; debugging and operation of software and hardware for computers and computer systems for general and special purposes; development and use of high-performance, mobile, web-oriented, cloud-based, energy-efficient, secure, adaptive, intelligent, smart technologies and software and hardware. Translated with DeepL.com (free version)

Professional Experience

TypeScript Developer

Jul 2025 – Nov 2025

BeFund, Remote — Web3 Game Development

  • Developed backend services for a Telegram-based crypto game using TypeScript, Hono framework, and Drizzle ORM, implementing scalable APIs and game logic services.
  • Implemented integrations with external services, analytics platforms, and monitoring dashboards supporting gameplay metrics, operational insights, and user engagement tracking.
  • Designed scalable backend architecture supporting statistics processing, gameplay features, and real-time service interactions.
  • Implemented payment-related workflows and cron-based notification systems supporting automated user communication and in-game activity flows.
  • Collaborated with cross-functional team members and contributed to maintaining code quality standards in a fast-paced crypto gaming environment.

Technical Lead

Nov 2024 – Nov 2025

BeFund, Remote — ERP, Crypto & Web3 startup

  • Led a backend engineering team of 10 developers, providing technical guidance, conducting code reviews, and organizing internal knowledge-sharing sessions and technical lectures to improve team capabilities.
  • Defined backend infrastructure strategies, database architecture approaches, and technical direction across multiple projects, aligning engineering decisions with long-term scalability and delivery efficiency goals.
  • Restructured development workflows after previous leadership transition, introducing standardized project templates, deployment configurations, and reusable infrastructure setups, significantly reducing project startup time and accelerating delivery cycles across teams.
  • Acted as technical lead for the architecture and delivery of a large-scale ERP/CRM platform for a manufacturing and multi-channel sales company, including database architecture design, legacy system integration, technology selection, and coordination between developers, managers, and client stakeholders.
  • Led legacy system integration and data migration strategy as part of ERP platform modernization, ensuring continuity of business-critical workflows during transition to the new system.
  • Mentored backend engineers and supported technical decision-making processes across projects, contributing to team growth and engineering quality standards.

Middle Python Developer

Jun 2023 – Nov 2024

BeFund, Ukraine — Web, Crypto & Scientific Projects

  • Designed and developed multiple production-grade Telegram and Discord bots implementing automation workflows, integrations with external services, and user interaction logic for business and community use cases.
  • Contributed to the backend development of an NFT marketplace platform for researchers, enabling authentication via academic identity providers and Google OAuth, and supporting article import workflows from external scientific platforms.
  • Implemented citation graph generation and processing features for scientific publications, including handling graph structures with up to 6,000 nodes representing article relationships and references.
  • Implemented functionality for generating NFTs based on scientific publications, ensuring proof of originality and uniqueness using blockchain-backed verification mechanisms.
  • Developed a multi-channel integration platform supporting Facebook, Instagram, Telegram, Slack, and Discord APIs, enabling unified interaction workflows across multiple communication ecosystems.
  • Contributed to backend development of a custom ERP platform for a US-based company, implementing business workflows and integrating ERP functionality with external CRM systems to improve operational efficiency.

Python Developer

Feb 2023 – Jun 2023

Avivi.info, Ukraine — FinTech & Crypto Wallet Development

  • Contributed to the backend development of a high-load Telegram-based cryptocurrency wallet as part of a team of 6 backend developers, participating in the full product lifecycle from architecture implementation to production release.
  • Implemented blockchain interaction via third-party APIs enabling deposit, withdrawal, and transaction history functionality; later migrated integrations to direct interaction with internal blockchain nodes (Tron, Bitcoin, Litecoin, Binance Smart Chain, Ethereum) to improve reliability and operational control.
  • Integrated cryptocurrency exchange APIs (Binance, HTX, Kraken) enabling asset swaps, limit orders, and liquidity management directly within the Telegram wallet workflow.
  • Integrated AML compliance workflows via external verification services and implemented multilingual support and two-factor authentication (2FA), improving platform security and regulatory readiness for international fintech operations.
  • Implemented complex internal transaction workflows handling deposits, fee processing, asset transfers to exchanges, and optimized routing logic for cost-efficient transaction execution.
  • Contributed to a production system processing millions of USD in daily transaction volume and supporting hundreds of active users.
  • Developed administrative reporting tools supporting financial analytics and export functionality (Excel, PDF, CSV) for operational monitoring and accounting workflows.

PHP Developer

Oct 2021 – Feb 2023

Avivi.info, Ukraine — CRM integrations

  • Developed a custom PDF generation module using PDF Forms for a Canadian construction company, supporting 10+ document templates with over 50 dynamic fields each, replacing multiple manual workflows and spreadsheets and reducing administrative processing time by 2+ hours per order cycle.
  • Implemented advanced role-based access logic and functional segmentation within Bitrix24 CRM for an organization of 300+ employees, improving usability, data security, and workflow separation across multiple departments.
  • Collaborated directly with an international client for ~1 year in English, gathering requirements, delivering custom CRM features, and maintaining continuous feedback cycles with consistently positive stakeholder evaluation.
  • Developed custom integrations with Ukrainian postal service APIs to streamline order processing workflows and implemented low-level adjustments to printing libraries to support client-specific label printer requirements.
  • Maintained and extended legacy Bitrix24 CRM modules, improving stability and adapting functionality to evolving business requirements.
  • Deployed and configured Bitrix24 CRM environments from scratch on CentOS servers, including installation, configuration, and production setup for client projects.
  • Developed multiple custom Bitrix24 modules and integrations for various small and mid-sized client projects, working directly with the Bitrix24 source code to extend core functionality according to business needs.
  • Worked in a distributed development team, collaborating with backend developers, frontend developers, and project managers using Git-based workflows.

Portfolio

In this section, you can explore examples of my projects in web development, bots, and SaaS solutions. Each work demonstrates practical experience, modern approaches, and attention to detail.

  • All
  • Web site
  • Telegram Bots

2Captcha Telegram Bot

A lightweight Telegram bot built with Python and Docker. It fetches your 2captcha account balance and posts it daily to a Telegram group, with instant response to /balance commands.

Stripe Subscription Demo

A demo project showcasing integration with the Stripe API to enable subscription payments for a specific product. Built with a clean design and secure API integration to handle recurring payments.

Contact

Get in touch to discuss projects, collaborations, or just to say hello. I’m always open to new opportunities.

Address

Haiger, Germany

Call Me

+49 1525 5851574

Email Me

btomchishen@icloud.com

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