The technical stack I work with
Languages, frameworks, protocols, databases, integrations and infrastructure — grouped by the engineering area they belong to.
Backend
Languages & frameworks
- Python
- Node.js
- Flask
- FastAPI
- Django
- Jinja2
APIs & protocols
- REST API
- WebSockets
- Webhooks
- OpenAPISwagger
Authentication
- JWT
- OAuth 2.0
- OTP
Data & databases
Databases
- PostgreSQL
- MySQL
- SQLite
- MongoDB
Data access
- SQL
- SQLAlchemy
- Alembic
Caching
- Redis
Processing
- Pandas
- ETL
Automation & integrations
Bots
- Telegramaiogram, Telethon, python-telegram-bot
- Discord
APIs & services
- Google Sheets API
- CRM integrations
- LLM APIsOpenAI
Automation
- Scheduled jobs
- Notifications
- Workflow automation
Data collection
- Web scraping
- Data pipelines
E-commerce integrations
Payments
- WayForPay
- LiqPay
- Monobank
- Stripe
- NovaPay
Fiscalization
- CheckboxPRRO
Delivery
- Nova PoshtaTTN, tracking, branches, parcel lockers
- Ukrposhta
- Cash on delivery
Communication
- TurboSMS
Analytics
- Google Analytics 4
- Google Tag Manager
Infrastructure & production
Servers
- LinuxUbuntu
- VPS
- Nginx
- Gunicorn
- systemd
- cron
Containers
- Docker
- Docker Compose
Version control & CI/CD
- Git
- GitHub
- CI/CDGitHub Actions
- Deployment scripts
Security
- Cloudflare
- SSL / TLSCertbot, Let’s Encrypt
- UFW
- fail2ban
Operations
- Monitoring
- Logging
- Backups
Networking
- WireGuard
- AmneziaWG
- Xray
- VLESS / Reality
Frontend
Core
- HTML
- CSS
- JavaScript
- TypeScript
Markup & UI
- Responsive UI
- Semantic HTML
- Accessibility
SEO & localization
- Technical SEO
- Localization / i18n
Additional engineering
Languages
- Java
- Kotlin
- C#
- C
Desktop applications
- Electron
Game development
- Unity
Minecraft
- ModdingFabric, Forge, NeoForge
- Server plugins
Engineering practices
Testing
- Unit testingpytest
- Postman
Code quality
- Type hints
- Code review
- Documentation
Debugging
- Error diagnostics
Have something to build?
Send the idea, problem, or feature — we can work out the technical approach from there.