Дмитро

[відкрити контакти](див. вище в блоці «контактна інформація»)
Dmytro Kotov [відкрити контакти](див. вище в блоці «контактна інформація»)
github.com/saymios
t.me/saymios
Fullstack Developer · Python / Django / React Kamyanske, Ukraine

Summary
Fullstack developer with 2+ years of hands-on experience building and deploying production-ready web
applications. Specializes in Django/DRF backends and React frontends. Independently designed and built
projects featuring real-time communication via WebSockets, asynchronous task processing with Celery,
JWT authentication, and cloud deployment on AWS EC2, Heroku, and Render. Comfortable owning a
feature end-to-end — from database schema to UI — and continuously improving architecture, test
coverage, and performance.

Technical Skills
Languages Python, JavaScript (ES6+)
Backend Django, Django REST Framework, FastAPI, Celery, Celery Beat, Django
Channels (WebSockets)
Frontend React, Zustand, React Query (TanStack), CSS3, HTML5
Databases PostgreSQL (query optimization, indexing, EXPLAIN ANALYZE), Redis
DevOps Docker, Docker Compose, GitHub Actions (CI/CD), AWS EC2, Heroku, Render,
Netlify
Testing pytest, pytest-django, unittest — fixtures, parametrize, conftest, monkeypatch
Monitoring Sentry, Better Stack, Silk (profiling), S3, SMTP

Projects

Taskly — Task Management Application 2025 – present
Stack: Django, DRF, Django Channels, Celery, Redis, React, Zustand, PostgreSQL, Docker, pytest -django
• Architected fullstack application with clean service-layer separation between business logic and API
views
• Implemented real-time task updates using Django Channels (WebSockets) with JWT authentication
middleware and per-object group broadcasting
• Built async background job processing with Celery Beat for scheduled reminders and deadline
notifications
• Optimized database queries using select_related / prefetch_related with nesting, annotations,
aggregations; profiled with Django Silk
• Achieved high test coverage using pytest-django with fixture scopes, indirect parametrize, and class-
based test organization
• Dockerized the full stack (Django + React + PostgreSQL + Redis); deployed on Render and AWS EC2
• Implemented custom keyboard shortcut system inspired by Helldivers 2 Stratagems for power-user
task actions

Teststep — Knowledge Testing Platform 2024 – 2025
Stack: Django, DRF, React, PostgreSQL
• Built a multi-role platform (students & teachers) with group management and test assignment
workflows
• Designed flexible question system supporting single-choice, multiple-choice, and matching question
types
• Implemented teacher dashboard for creating, editing, and assigning tests with result analytics

Coffee-times — Café Reservation System 2024 – 2025
Stack: Django, DRF, React, PostgreSQL
• Developed interactive map-based café finder with table reservation functionality
• Built conflict-detection logic to prevent overlapping reservations
• Implemented dual-access reservation lookup: profile page for registered users, search-by-number for
anonymous users

Experience
All projects were independently conceived, developed, and deployed without team or mentorship. Each
project covers the full development lifecycle: requirements → architecture → implementation → testing →
deployment.

Education
Kamensk Professional Lyceum · 2018 – 2021
Technical qualification (Level 3)

Languages
Ukrainian — Native | English — A2 (reading technical documentation)