Dávid Köteleš

Senior frontend developer building interfaces for real products.

Architecture, API design, and production UI in TypeScript — mostly React and Vue.

See projects Contact

Work

Personal projects

Selected client and side projects — mostly frontend, often with API design and real-time data.

ForxAI Mirror

A real-time PPE compliance detection system using AI to ensure workers are wearing the correct PPE.

Vue
TypeScript
HTTP Multipart
REST

Watch demo

Video Vision Platform

Development of a platform that lets teams build business logic for quality inspection of video streams.

React
Vue
TypeScript
OpenAPI
REST
Zod
WebSockets

Watch demo

Platform documentation

Documentation portal for the video-vision platform used to design and operate business logic for stream-based quality inspection.

VitePress
TypeScript
Vue

Finance tracker

Personal finance tracker with a focus on simplicity and ease of use.

Vue
TypeScript
Quasar
Electron

GitHub

In progress

MimiStop

In progress

Find a place with your baby.

Svelte

GitHub

Skills

What I work with

Framework-agnostic at heart, with deep experience across the modern JavaScript ecosystem.

React

Advanced

100%

Component architecture, hooks, state management, and performance tuning in production apps.

Vue

Advanced

100%

Composition API, Pinia, Nuxt workflows, and building maintainable UI systems.

Astro

Advanced

60%

Islands architecture, content-focused sites, and blending static speed with interactivity.

JavaScript

Advanced

92%

Modern ES features, async patterns, DOM APIs, and writing clean modular code.

TypeScript

Advanced

90%

Strong typing, generics, utility types, and safer refactoring across large codebases.

Styling & UI

Tailwind CSS
CSS Modules
Responsive Design
Accessibility

Tooling & Workflow

Vite
Git
ESLint
Figma

Backend & Data

Node.js
REST APIs
GraphQL
PostgreSQL
Sockets

About

Get to know me

Dávid Koteleš

Senior Frontend Developer

Building thoughtful digital experiences

I’m a Senior Frontend Developer with 5 years of experience turning product requirements and system designs into clean, working code. I specialize in driving the entire frontend lifecycle—from mapping initial architecture and designing OpenAPI contracts to engineering scalable single-page applications.
I actively leverage AI tools to accelerate delivery workflows and integrate smart AI-driven features directly into modern web apps.

Years of experience

10+

Technologies mastered

Contact

Let's work together

Have a project in mind or want to chat about web development? Reach out — I'd love to hear from you.

Email david@koteles.cz Best for project inquiries and collaborations LinkedIn linkedin.com/in/davidkoteles Connect professionally and follow my journey GitHub github.com/koteles-david Explore my open-source work and side projects