I'm Simeon Kovachev, a Full Stack .NET / Next.js developer from Bulgaria. I build conversion-focused websites, internal tools, dashboards and AI integrations for service businesses and agencies.
AI integrations with OpenAI, ElevenLabs, DeepL, Hume AI · Experience across healthcare, e-commerce, events and digital media
Trusted experience across
Production experience with enterprise-level pharma projects and event platforms with 2,000+ active participants.
From lead-generation websites to AI automations and custom dashboards — built to drive real business outcomes.
Fast, mobile-first lead-generation websites for service businesses that need more enquiries, clearer offers and stronger credibility.
A conversion website paired with a smart AI quote widget that qualifies visitors, estimates a price range and captures leads automatically.
Business tools, portals and web apps built with scalable .NET backends, clean APIs and modern frontends.
Dashboards that help teams manage data, workflows, leads, reports and day-to-day operations.
AI-powered tools that reduce manual work, automate media and text workflows and improve business processes.
Reliable full-stack delivery for agencies that need to ship client websites, dashboards and AI integrations without hiring full-time.
A few products I've shipped end-to-end — multi-tenant SaaS, conversion websites and full-stack web apps.
AI Quote Widget SaaS
Multi-tenant AI quote-widget SaaS for service businesses. Visitors describe what they need, the AI asks qualifying questions, estimates a price range, captures the lead and saves it to a dashboard.
Conversion Website + CMS
Modern, responsive website for a tattoo studio with dynamic service pages, galleries and SEO-focused content managed through Sanity CMS.
Full-Stack Travel Journal PWA
A private, installable travel-journal web app for couples to document trips — chapters, daily entries, love letters, time capsules and an embedded travel map. Offline-first with cloud sync.
Beyond the work shown here, I've delivered production web applications, reporting systems and admin dashboards across healthcare, pharma, events and e-commerce.
A developer who thinks about your business outcome first — then ships the software to back it up.
I don't just write code. I focus on what the software needs to achieve: leads, automation, clarity, speed or operational efficiency.
I handle backend, frontend, database, API integrations, deployment and debugging end-to-end.
Hands-on experience integrating OpenAI, ElevenLabs, DeepL, Hume AI and similar APIs into real production workflows.
I deliver production projects under tight deadlines while keeping code clean, maintainable and scalable.
Clear scope, transparent timelines and steady communication — from first call to launch and beyond.
We define the goal, target users, must-have features and business outcome.
I turn the idea into a clear scope, timeline and price before development starts.
I design and develop the core experience with clean code, responsive UI and scalable architecture.
You test the project, give feedback and we refine what matters.
I deploy the project, connect forms / integrations and make sure everything works.
Optional maintenance, improvements and AI automation upgrades.
A modern, production-grade stack across backend, frontend, data, AI and cloud.
Fixed scopes, transparent timelines and clear deliverables — built around business results, not hours.
For service businesses that need a professional website designed to turn visitors into enquiries.
My strongest offer — a conversion website plus a smart AI quote widget that qualifies visitors and captures leads automatically. The same system behind Skoro, tailored to your business.
For teams that need internal tools, admin dashboards, portals or custom business workflows.
For agencies that need reliable full-stack development capacity for client work.
Final pricing depends on scope. I work with clear fixed scopes, transparent timelines and upfront agreement.
“This person can build serious production software — not just pretty pages.” That's the reputation I work to earn on every project.
Client testimonials available on request.
Clean, maintainable, scalable code — the same standard I apply to enterprise pharma and event platforms.
Fixed scopes and transparent timelines, with projects shipped under tight deadlines.
One developer accountable for backend, frontend, integrations and deployment.
Tell me what you want to build and I'll reply with the next steps, estimated scope and timeline.
Book a free 15-minute call and we'll figure out if it's a good fit — no pressure, no sales pitch.