SV nails
A dark, jewellery-grade site for a Gdansk nail studio - three languages and one-tap booking via Instagram, WhatsApp and Viber, turning a 5k following into appointments.
- Astro
- Cloudflare
- Tailwind
- Turnstile
- Telegram Bot API
Software developer
Yaroslav Savchenko
I build software end to end - from mobile and web apps to automation, bots and complex systems. Fast, accessible, quietly engineered.
Available for work
- 24 h average reply
- End-to-end idea to launch
- 4 languages
Selected work
SV Group
A fast, low-cost website for a renovation company in Poland's Tricity - built to win trust, get found on Google and bring in quote requests, on hosting they already had.
- Astro
- Preact
- Tailwind
- Leaflet
- GitHub Actions
Legal Line
A fast, five-language website for a law firm helping immigrants in Poland - rebuilt to turn visits into booked consultations, with every enquiry reaching the team instantly.
- React 18
- Vite
- Cloudflare Workers
- i18next
- Telegram Bot API
Asgard
A messy Discord community run by ten risky bots, rebuilt into one clean, safe platform run by a single bot that manages itself and can't be broken by accident.
- Python
- discord.py
- aiohttp
- aiogram
- Docker
How we work
-
We talk
A free, no-pressure chat about what you need and what it should do for your business.
-
Plan & design
I map out the pages, the look and the price - so you know exactly what you get before any work starts.
-
Build
I build it and keep you posted, so you watch it take shape. Fast, reliable, made to last.
-
Launch & support
We go live, I make sure everything works, and I stay around for changes and help afterwards.
What I can build
Languages Across the whole project
- TypeScript
- Python
- JavaScript
- PHP
- SQL
- Bash
Websites & apps Fast, easy to use on any device
- Astro
- Next.js
- React
- Preact
- Tailwind
- Vite
- MDX
Servers & data The engine behind the app
- FastAPI
- Django
- Node
- Bun
- Elysia
- aiohttp
- GraphQL
Data & AI Databases and smart features
- PostgreSQL
- Redis
- SQLAlchemy
- Alembic
- Pydantic
- OpenAI
- Anthropic
Bots & automation Running for you 24/7
- discord.py
- aiogram
- Telegram Bot API
- asyncio
- Webhooks
- IaC
Apps & hosting Built, deployed and kept running
- Electron
- WXT
- Docker
- Cloudflare
- GitHub Actions
- Linux
- Playwright
About
I'm Yaroslav Savchenko, a software developer in Gdańsk.
I build websites and web apps, and I like handling the whole thing - design, code, hosting and launch. Right now that's commercial client sites, a self-running Discord community platform, and an AI tool that scores job listings.
This site is built the way I build for clients: fast, lightweight and secure, with smooth page transitions.
Contact
Let's work together.
Open to work & selected projects
- Phone
- +48 733 340 604
- Send a message
- Telegram
- @Jaroslaw_I
- @jar_dev_
- GitHub
- github.com/JaroslawSawczenko