[FOR HIRE] Next.js Developer | Payments, API's, AI integrations, WordPress, Wix → modern stack

Frameworks/Libraries: Next.js, React, TailwindCSS
Languages: TypeScript
Database/Backend: Prisma, PostgreSQL, NextAuth
Infrastructure: Vercel, Coolify/VPS

Hi! I'm Svyatoslav, a full-stack developer based in Larnaca, Cyprus (EU).

What I Specialize In

Building Complex Web Apps & SaaS Need custom E-commerce, CRM/CMS systems, or complex cleaning services? I focus on performance, architecture, and giving you full control over your product.
Fixing "Vibe-coded" / AI-generated sites I will take your MVP to production with a code revision. Recently fixed a business site where the AI builder had left duplicate leads and a broken database connection—fixed, migrated, and running within the same week.
Wix / WordPress → Next.js Migrations Modern stack, you own the code, no more monthly subscriptions. Just shipped one for a yoga studio: booking system, CMS, and fully functional.
Website Development
- Restaurant / Cafe: Menu, reservations, online ordering
- Online Shops: Product catalog, payment by card
- Salon / Beauty / Medical: Booking, services, contacts
- Business / Services: Portfolio, pricing, contact page
- Construction / Real Estate: Project gallery, leads
- Personal Blog / Portfolio: Articles, stories, case studies
Payment Integrations Stripe checkout, subscriptions, webhooks, and failed payment handling. Experienced with Stripe and Paddle across 10+ production projects.
AI Feature Integrations OpenAI, Gemini, and embedding into existing apps. Chatbots, assistants, RAGs, and content generation flows. Built an AI deployment assistant into my own product to walk non-technical buyers through setup.

Main Project: A template platform, the biggest project I built solo (live, full-stack).
Yoga Teacher Site: Wix → custom Next.js migration with a booking system (just shipped).
FinTech Platform: Integrated with Stripe, automated PDF delivery, and AI analytics.

DM me what you need and I will reply the same day.