Prague, CZ

Jan Vlasatý

Product Engineer

Experience

Work
History

Now2022
Melown SE · Prague
Software Engineer

Designed and implemented scalable APIs using GraphQL and TypeScript for UAV/LiDAR-to-3D modelling pipelines. Enhanced user experiences with intuitive dashboards for complex data visualisation.

20222017
Operátor ICT · Prague
UX/UI Designer & Developer

Led UX and development for the Prague Data Platform (Golemio) — delivering dashboards and APIs to city municipalities, citizens and third parties. Implemented API for Prague's digital departure boards across the city.

20172015
Ministry of Finance · Prague
Full-Stack Developer

Full-stack developer and UX designer focused on open data. Co-authored cityvizor.cz — an open-source platform for municipal budget transparency adopted by dozens of Czech cities.

Now2010
Self-Employed
Freelancer

City-scale data platforms, interactive public installations, data visualisations, web apps and UX — working with civic, cultural and tech clients across Czech Republic and Europe.

Skills

Technical
Expertise

Backend

TypeScript · Node.js · REST · GraphQL · WebSockets · RabbitMQ · Node-RED

Databases

PostgreSQL · PostGIS · MySQL · MongoDB · Redis

Frontend

React · Angular · Vue · TypeScript · WebGL · Mapbox GL JS · P5.js

Design & UX

Figma · Adobe XD · Prototyping · User Research · Design Systems

Infrastructure

Docker · Kubernetes · CI/CD · AWS · Azure

Other

IoT · ESP32 · Video Production · DTP · Open Data · Smart City

Projects

Selected
Work

Prague Public Transportation Monitoring

Real-time GPS tracking for up to 5,000 vehicles — delay computation, data pipeline and public API for Prague's entire transit network.

TypeScript · REST · RabbitMQ · PostGIS

2017–2022

Departure Boards API

Realtime API powering physical departure board displays across the City of Prague — launched with 20 devices, hundreds planned.

TypeScript · REST

2021

Prague Live — Data Visualisation Exhibition

Real-time city data rendered across 5 FullHD wide-screen projections inside the CAMP architecture and planning centre.

WebGL · Mapbox GL JS · Golemio API

Neviditelná Tržnice — Immersive Theatre

Tablet app letting visitors control the narrative of an immersive theatrical production via Bluetooth beacon indoor localisation.

Ionic · Figma · BT Beacons

2021

Building City Street — Interactive Installation

Web application with real-time mobile control for a collaborative game installation exhibited at CAMP Prague.

WebSockets · P5.js

2020

Cityvizor — Municipal Budget Transparency

Open-source web application for visualising city budgets — co-authored at the Ministry of Finance, adopted by dozens of municipalities.

Angular · Figma · Adobe XD

2015–2017
Education

Academic
Background

2015–2017
Master’s Degree
Biomedical Engineering
Czech Technical University · Prague
2011–2015
Bachelor’s Degree
Biomedical Technology
Czech Technical University · Prague

Let’s build
something
together.

jan.vlasaty@hotmail.com