About

Senior Full-Stack Developer | Web Apps Β· AI Bots Β· Automation | 15+ yrs

Kateryna Parfenova

Hi, I'm Kateryna

Full-stack developer with 15+ years of experience across banking systems, enterprise software, and modern web applications. I've built production systems for Skoda Auto's manufacturing line, accounting platforms for gaming terminals, insurance apps, and mobile food delivery apps β€” before fully moving into AI and automation. Today I help businesses cut manual work and scale faster using Next.js, Node.js, and AI tools like OpenAI, Anthropic, and n8n. You work directly with me β€” a senior developer, not a project manager or junior.

βœ“Skoda Auto β€” manufacturing line software
βœ“Banking & payment card systems
βœ“Insurance & e-commerce applications
βœ“AI agents & automation workflows
βœ“Two degrees: System Engineering Β· Finance

What I Do

How did you end up in AI automation?
Kateryna
Started in banking systems back in 1999 β€” Delphi, PHP, payment terminals. Then web, then mobile, then full-stack. AI automation came naturally β€” after 15 years of building software you start seeing exactly which parts can be eliminated entirely.
What's the most interesting project you've implemented?
Kateryna
The Ε koda Auto manufacturing line system was something β€” real-time data from the production floor, WebSockets, MQTT. But watching a Telegram bot qualify leads and save someone 3 hours a day is equally satisfying.
What do clients usually come to you with?
Kateryna
Everything from 'build me an app from scratch' to 'automate this one annoying thing we do manually every day.' CRM systems, mobile apps, backends, landing pages, AI bots β€” the full stack, from idea to production.
Why AI β€” is it just a trend?
Kateryna
Companies that automate now will operate with half the overhead of those that don't. We can add AI to what you already have β€” as a standalone feature. Or build a complete system from scratch: CRM, mobile app, backend, dashboard β€” and integrate AI where it delivers the most impact.

Industries I've Worked In

Automotive
Banking
Insurance
Accounting
Marketing
SaaS
E-commerce
Food Delivery

My Stack

Next.jsReactReact NativeTypeScriptNode.jsNestJSPostgreSQLMongoDBDockerOpenAIClauden8nGroq