Vilmos Zoltan Kiss

Frontend / Fullstack (React, Node.js)

Stable systems are built for change.

Building complex interfaces and systems for stateful applications with async data flows and non-linear logic. → Interfaces handling 50K+ records → Event-driven systems (RabbitMQ, WebSockets) → Config-driven UIs without frontend deploys Delivered systems across healthcare, legal operations, energy, and enterprise SaaS — supporting real-world workflows at scale.

📄 View Resume (PDF)

👋 Open to remote roles - contract or full-time. Let’s connect →

Skills

React

Next.js

TypeScript

Node.js

MongoDB

PostgreSQL

Tailwind CSS

shadcn/ui

WebSockets

RabbitMQ

Real-time Systems

Web Integrations

Landing Pages

Enterprise SaaS

Metadata-Driven Platforms

Work Highlights

Built data-heavy React interfaces (1K+ items) with smooth interaction by introducing lazy loading and reducing render load

Delivered configuration-driven UI systems rendering from JSON, enabling new features without frontend code changes

Stabilized RabbitMQ-based messaging under production load, resolving spike-related failures and enabling reliable real-time communication

Optimized filtering across 50K+ records using indexing and aggregation, reducing query times from 5–10s to sub-second

Projects

VI-klinikken

Landing page and reusable React component system for a Norway-based mental health clinic.

Designed scalable React component system reused across multiple page types
Translated Figma designs into production-ready UI with consistent structure
Improved landing page UX, increasing conversion from 1.19% → 1.74%

Tech: Next.js, React, Tailwind CSS, shadcn/ui

VI-klinikken →

Flow Theory Library - Video Platform

Product platform for distributing and monetizing video content from international dance events.

Designed asynchronous video processing and delivery pipeline (FFmpeg, webhooks)
Built secure delivery flow with time-limited access (JWT + email delivery)
Handled real-world challenges of selling and delivering digital content to end users

Tech: React, Next.js, MongoDB, Mailgun, Mux API

Library - Flow Theory Visuals →

Flow Studio - Event Scheduling App

Mobile-first Progressive Web App built for a 4 day dance festival, replacing Excel-based event schedules with real-time updates and personal planning.