Web, Blockchain & AI Solutions for Your Business
Fullstack developer based in EU. Smart contracts, AI automation, and modern web apps — from idea to production.
What I Do
Three core directions — each backed by real production experience
Web Development
Fullstack applications with modern frameworks. From landing pages to complex platforms with real-time features and integrations.
- React / Next.js
- Node.js / NestJS
- TypeScript
- REST & GraphQL APIs
- DApp Frontends
Blockchain
Smart contract development, auditing, and multichain architecture. 5+ years of experience, former Head of Blockchain department.
- Solidity / EVM
- TON / Solana / Near
- DeFi & NFT
- Contract Audits
- Token & Exchange Systems
AI & Automation
Business process automation with AI agents, workflow engines, and custom integrations. Real cost savings, not buzzwords.
- AI Agents
- n8n Workflows
- RAG Systems
- LLM Integrations
- Process Automation
Cases
Real projects with measurable results — no NDA details, just the essence
HR Pipeline Automation
A recruitment agency was drowning in CVs — manual screening took 3+ hours daily, and good candidates slipped through the cracks.
Built an n8n workflow with AI-powered CV parsing: automatic scoring, categorization, and shortlisting. Integrated with email and Telegram for instant notifications.
Screening time cut by 80%. The team now reviews only pre-qualified candidates, and response time to applicants dropped from days to hours.
Communication Aggregation for IT Company
An IT company's management was losing track of decisions scattered across Slack, email, Jira, and Google Meet notes.
Created an aggregation system that collects key messages and decisions from all channels into a single Telegram feed — filtered, categorized, and searchable.
Management gets a daily digest of all critical communications. Decision-tracking time reduced by 60%, nothing falls through the cracks.
Telegram Bot for Dance Studio
A dance studio managed bookings via phone calls and Instagram DMs — double bookings were constant, and the admin spent hours on scheduling.
Developed a Telegram bot with class schedule, online booking, automatic reminders, and waitlist management. Connected to the studio's calendar system.
90% of bookings now go through the bot. Admin workload dropped significantly, and no-shows decreased thanks to automatic reminders.
About Me
I'm Arsenii Ovsianykov — a fullstack developer based in Katowice, Poland. Over 5 years of commercial experience in web development, blockchain, and business automation. Former Head of Blockchain department. I work with European SMBs, turning complex technical challenges into working products.
Tech Stack
Frequently Asked Questions
Get in Touch
Have a project in mind? Let's discuss how I can help.