Artem Nikolaev

Python Full-Stack Developer with over 4 years of experience in backend and frontend development across e-commerce, energy management, cryptocurrency, and automation platforms. Skilled in Python, Django, FastAPI, React, and integrating complex third-party APIs like Shopify, eBay, and Binance. Proven ability to refactor legacy codebases, improve product reliability through testing, and lead end-to-end feature delivery.

Strong advocate for clean code, CI/CD, and scalable system design. Experienced across domains including e-commerce, energy management, cryptocurrency, SaaS platforms, automation tools, and AI-integrated systems.

Full Stack Developer at Фабрика данных (2024-11 – Present)

Developed an automated restructuring calculator, maintained production microservices, designed custom Python profiler for FastAPI, led legacy refactoring, authored technical documentation, and introduced feature + test development methodology.

• Developed an automated restructuring calculator from scratch, generating monthly repayment plans and providing a full-cycle solution for financial modeling and business validation.
• Maintained and improved 3 production microservices, enhancing code quality, introducing pre-commit hooks, configuring CI pipelines for pull requests, and implementing automated deployment to production servers.
• Designed and implemented a custom Python profiler for FastAPI, enabling deeper query performance analysis and used by multiple team members to optimize database interactions and reduce response time.
• Led large-scale legacy refactoring and library upgrades, modernizing the codebase, improving maintainability, and upgrading the supported Python version.
• Authored 80% of the technical documentation for two core microservices, including API specifications and structured Postman collections.
• Introduced feature + test development methodology with automated unit testing, reducing production bugs and significantly decreasing QA verification time.

Full Stack Developer at Insiders (2023-05 – 2024-11)

Developed AI-powered e-commerce listing system with ChatGPT integration, built services for Shopify, eBay, Faire API integrations, increased test coverage by 42%, and improved UI/UX across web interfaces.

• Developed AI-powered e-commerce listing system with ChatGPT integration, automating product descriptions and metadata generation.
• Built services for Shopify, eBay, Faire API integrations, enabling account login, product sync, and order management.
• Increased project test coverage by 42% by implementing unit and integration tests in Pytest, improving system reliability and deployment confidence.
• Improved UI/UX across web interfaces, enhancing user satisfaction and streamlining user interactions.

Full Stack Developer at Meduzzen (2022-02 – 2023-05)

Refactored restaurant warehouse management backend, designed and integrated dark mode across web and mobile platforms, created and maintained Telegram bots, and modernized legacy codebase architecture.

• Refactored restaurant warehouse management backend, improving maintainability by 33% and adding dish calculator feature.
• Designed and integrated dark mode across a React/Next.js website and React Native mobile app, enhancing user experience and increasing user engagement metrics by 17%.
• Created and maintained Telegram bots using Aiogram, automating repetitive tasks and reducing manual workload by 47%.
• Successfully refactored legacy code into a modern repo-service architecture, increasing code maintainability by 30% and reducing deployment issues by 20%.

Bachelor's Degree in Software Engineering – National university 'Lviv polytechnic'