Serhii Tolmachov
Python Developer at Ajax Systems
Kyiv, Ukraine
Summary
🤩
Rockstar🎓
Top SchoolSerhii Tolmachov is a results-driven Software Engineer from Kyiv with 3 years of hands-on experience building high-load web and desktop systems in Fintech and Healthtech. He specializes in migrating legacy monoliths to modern asynchronous architectures (FastAPI) and squeezing performance from databases—achieving up to 80% app speedups and 73% reductions in query time through raw SQL optimizations. Comfortable across Python, C/C++, SQL and the full backend stack, he implements production-grade observability, CI/CD and testing practices that have cut production errors by over 60%. As a mentor and technical interviewer he lifts junior engineers’ readiness and enforces engineering discipline, while his work spans both backend microservices and desktop UIs (PyQt/PySide). Notably, he pairs deep low-level optimization skills with a product-minded approach to design systems that scale globally under real traffic.
3 years of coding experience
2 years of employment as a software developer
Bachelor's degree Computer Software Engineering, Bachelor's degree Computer Software Engineering at Ternopil Ivan Puluj National Technical University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (2)
cpp3
qt2
Programming languages (4)
Github contributions (5)
SerhiyTo/Birthday-App
May 2023 - Oct 2023
This project for a user-friendly desktop application designed to help users keep track of birthdays and never miss an important celebration =)
Contributions:12 PRs, 44 pushes, 15 branches in 5 months
birthday-remindercppqtqt6
SerhiyTo/Fitness-Training
Mar 2024 - May 2024
The repository contains the core functionalities for an API that supports a fitness training application.
Contributions:16 PRs, 38 pushes, 3 branches in 2 months
djangodjango-rest-frameworkpython
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