Сергій

Serhii Lubko
Python Developer
Motivated Python Developer with a solid foundation in backend engineering (Django,
DRF, FastAPI). Holds a Master’s degree with honors in Philology/Translation and is a
PhD Candidate, demonstrating strong analytical, data structuring, and rapid learning
capabilities. Leverages Advanced (B2/C1) English, Intermediate (B1) German, and
professional experience as a translator to easily master technical documentation and
Contact collaborate effectively. Proven ability to handle high workloads by successfully
balancing backend development with academic research. Highly motivated to grow
professionally and contribute effectively to a dynamic development team.
[open contact info](look above in the "contact info" section)

[open contact info](look above in the "contact info" section)
Experience
Telegram

LinkedIn: Serhii Lubko
Feb2026 - Present
GitHub
Python Developer
Cherkasy, Ukraine, remote
Technologies: Python, Django, DRF, HTML/CSS, JavaScript, PostgreSQL
Designed and developed production-ready RESTful APIs and monolithic web
applications following OOP and SOLID principles
Modeled complex relational database schemas and optimized database performance
by eliminating the N+1 query problem using Django ORM
Expertise Implemented secure user authentication and granular role-based access control
(RBAC) across services
Covered business logic with automated unit tests to ensure code reliability and
Python
stability
Django Participated in team workflows, managing code versions via Git, creating Pull
Requests, and conducting peer Code Reviews
Django REST
FastAPI Jan 2023 - Dec 2025
English Translator, Freelance
Technologies or Tools: CAT Tools (Trados, MemoQ)
Translated a wide range of documents (technical, legal, and business documentation)

Languages with a total volume of over 200,000 words.English
Provided real-time consecutive interpretation for cross-functional teams during online
sprint meetings, technical presentations, and in-person briefings.
Ensured strict adherence to deadlines and quality standards, collaborating effectively
English C1 with diverse international clients.
German B1

Ukrinian Native
Russian Native
Skills

Python: Python 3.10+, Advanced Python (Decorators, Iterators,
Generators), Asynchronous Programming
Object-Oriented Programming (OOP): SOLID principles, Design patterns
Web-Frameworks & Tools: Django, Django ORM, DRF, FastAPI
Testing & Code Quality: Unittest, Pytest, Flake8/PEP8
Databases: PostgreSQL, SQLite, Redis
Web Technologies: HTML, CSS, JavaScript (Basics)
Version Control & Collaboration: Git/Github
Development Tools: Debugging, Docker
AI: LLM API, RAG, vector DBs, agents, PydanticAI, Claude Code, MCP
 Serhii Lubko
Python Developer

Education

2025 - Present

Contact The Bohdan Kmelnytsky National University of Cherkasy PhD in Pedagogy

2021 - 2023
[open contact info](look above in the "contact info" section) The Bohdan Kmelnytsky National University of Cherkasy Military psychologist, second
[open contact info](look above in the "contact info" section) lieutenant

Telegram 2018 - 2023
The Bohdan Kmelnytsky National University of Cherkasy Master’s Degree in Philology
LinkedIn: Serhii Lubko
(with honors)
GitHub

Cherkasy, Ukraine, remote
Portfolio
IT Company Task Manager – A Django-based web application
designed for workflow automation and team management within
Expertise an IT company. Features a robust role-based system (workers,
positions, task types, and tasks), allowing team leads to assign,
Python track, and filter tasks efficiently. Built using Django ORM,
Django Bootstrap, and PostgreSQL/SQLite, featuring user authentication
Django REST and customized filtering mechanisms.
FastAPI GitHub Code

Hotel Booking Service API – A robust RESTful API built with
Django REST Framework designed to manage hotel reservations,
Languages room availability, and customer bookings. Engineered a complex
database structure handling Hotels, Rooms, Bookings, and Users.
Implemented custom DRF serializers with strict validation logic to
English C1 prevent double-booking of rooms for overlapping dates.
German B1 GitHub Code
Ukrinian Native
Russian Native Additional Education
Python course at Mate academy (Python, Django, DRF, FastAPI), 2026
Books: Clean Code by Robert Cecil Martin; Fluent Python: Clear, Concise, and
Effective Programming by Luciano Ramalho (in the original)

Achievents
Academic Research & Publications: Authored and co-authored scientific
research articles focused on innovative project-based learning methodologies
as part of PhD candidacy
Self-Discipline & Fitness: Dedicated to long-term physical training and athletic
discipline, consistently maintaining a rigorous gym workout schedule
alongside demanding academic and technical workloads