Степан

Stepan Oleksiuk Python Developer
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Ivano-Frankivsk, Ukraine Linkedin GitHub Telegram

Accountable backend professional with a systems mindset and adaptable approach who quickly integrates
into teams and stays deeply involved in the work. Skilled at setting clear priorities, finding practical solutions
to complex challenges, and communicating transparently with both team members and business
stakeholders. Proactively takes initiative, sustains healthy project momentum, resolves blockers, and builds
reliable processes that ensure product stability and long-term growth. Open to feedback, eager to learn, and
always focused on impact valuing not just completed sprints, but tangible outcomes that matter for the team
and the business

Experience
Python Developer, :DTeam 2025 – Present
Mobile App (Backend, Django/DRF)
Led full backend development for a mobile app from user login to billing and
subscriptions, including localization support. Managed background jobs using
Celery and Redis with retry logic and event handling via Django signals. Improved
PostgreSQL performance and reduced latency using django-silk, integrated Firebase
Cloud Messaging for push notifications, and configured Docker, NGINX, and GitLab
CI/CD pipelines for reliable deployments and monitoring with Sentry.
Telegram & AI:
Automated Telegram workflows using Playwright to simulate user actions and
schedule posts with rate limit handling. Integrated Al services such as OpenAl and
IlLabs TTS for content generation and voice synthesis. Built resilient task queues
with Celery and Redis, utilizing PostgreSQL and MongoDB for state management,
accompanied by detailed logging and alerts for system reliability.

Python Developer, Self-employed 2024 – 2025
Task Manager:
Full-stack web app for team task tracking and role management. Built with Django
(CBV, ORM), integrated user roles, deadlines, tags, and assignments. Adapted
Bootstrap UI, added interactivity with HTML/CSS/JS. Used Cloudinary for image
hosting. Deployed via Render.com with PostgreSQL and .env configs.
Train Station API:
Backend service for managing trains, routes, and ticket bookings. Built with Django
REST Framework, used JWT auth, filtering, and nested serializers. Documented
endpoints with drf-spectacular (OpenAPI). Configured PostgreSQL, environment
variables, and custom permissions. Developed with scalable structure and clean
code (CBV, serializers, viewsets).
Library Management System:
Team project for managing books, users, and orders. Led initial setup, structured
repo, and supported Git workflow (branches, merges). Delegated tasks, helped
resolve blockers, and contributed to API, tests, and refactoring. Project included
Stripe, Telegram Bot, Celery, and DRF, developed collaboratively.
 Education and Qualifications
Python Developer, Mate Academy 2024
Python development at Mate academy with mentor support, practical projects, Online
databases, and testing.

Stanford CSA106+CSB106, Ш++ 2023
Java-based Computer Science at School++ with peer reviews, media processing, Online
and interactive UI projects.

CS50: Introduction to Computer Science, Harvard University 2022
Аlgorithmic thinking, problem-solving efficiency, and hands-on problem sets across Online
C, Python, and web.

Specialist in Automobile and Engine Repair, 2012 – 2016
Nadvirna Professional College of the National Transport University

SKILLS
Web Frameworks: Django, Django REST Databases: PostgreSQL, SQLite, MongoDB, Redis
Framework, FastAPI
APIs & Auth: REST, OpenAPI/Swagger, JWT/OAuth2
Concurrency: Multiprocessing, Multithreading,
Front-end: HTML, CSS, Bootstrap, JavaScript
Asyncio, Celery
Testing & Quality: Pytest, unittest, coverage, Black,
Web Scraping: Selenium, Scrapy, Playwright
flake8/isort, Ruff
DevOps: Docker, CI/CD, Linux/Bash, NGINX
Tools: Git, GitHub, GitLab, Trello, Jira, Slack
Observability & Messaging: Sentry, Firebase Cloud
Messaging

LANGUAGE
English Czech
Upper-Intermediate Pre-Intermediate

BOOKS
"Grokking Algorithms", A. Bhargava

"Code", Charles Petzold

"Computer Science Distilled", W. Ferreira Filho

"Head First Java", K. Sierra & Bert Bates

"Algorithms", R. Sedgewick

"Python Crash Course", Eric Matthes

"Learning Python", Mark Lutz