Vilmos Zoltan Kiss

Owned frontend architecture and built a pure-domain Excel-style selection engine for a law-firm time-tracking platform; designed a Node.js WebSocket service for real-time transaction processing; integrated external event streams (Let’s Exchange.io) with resilient reconnection and Dockerized deployment; architected a configurable UI layer used across multiple products, enabling non-engineering teams to ship features independently; diagnosed and resolved UI freezes handling 1,000+ items, introduced lazy loading to reduce initial data volumes.

Remote, Sep 2025 - present. Owned frontend architecture and built a pure-domain Excel-style selection engine (range, multi-select, keyboard navigation) decoupled from rendering for a law-firm time-tracking platform. Built a Node.js WebSocket service for real-time transaction processing, integrating external event streams (LetsExchange.io) with resilient reconnections and Dockerized deployment. Designed a scalable React component system for a mental health platform with structured content (Sanity CMS) integration and an optimized landing page that increased conversions. Investigated RabbitMQ failures and established a lab-ready UI-engine to reduce frontend deployments across 3+ products. Implemented a memory-efficient UI for real-time interfaces, introduced lazy loading, and cut initial data load. Led architecture for a configuration-driven UI to render dashboards, filters, forms, and tables from JSON schema across multiple products.

Owned a full-stack, event-driven Node.js service in a distributed platform; consumed RabbitMQ domain events, maintained a versioned MongoDB projection to reject stale or replayed events, and pushed live updates to browser clients via Socket.IO for live data consistency; designed a configuration-driven UI engine (3+ products) enabling rapid feature surface shipping; implemented RBAC, audit trails, and full history tracking to meet compliance and traceability requirements.