Consultancy
Architecture reviews, technology choices, data modelling and a clear-eyed second opinion. We help you pick the right approach before a line of code is written — and avoid expensive detours.
Software studio · Košice, Slovakia
Maps, data and software that
actually work in the field.
Ing. Martin Ždila s.r.o. is an independent Slovak software company. We design, build and ship full-stack web applications, with a special focus on geographic information systems and OpenStreetMap — from the first sketch to production and beyond.
- Est. 2016incorporated in Slovakia
- 20+ yrsengineering experience
- 4M+OpenStreetMap edits
What we do
Three ways we can help
End-to-end, or whichever part you need most.
Design
UX and interface design for data- and map-heavy products, where usability is hard. We make complex tools feel obvious — interaction flows, map cartography and clean, accessible front-ends.
Full-stack development
From database to pixel: TypeScript/React front-ends, Node.js back-ends, map tile servers and spatial data pipelines. Built to be maintained, not just demoed.
About the company
A specialist studio for maps & spatial data
Ing. Martin Ždila s.r.o. is an independent software company founded in 2016 and based in Košice, Slovakia. We focus on what most teams find hardest — turning geographic data into fast, usable, production-grade web applications — while remaining fully at home across the rest of the modern full-stack.
The company is founded and led by Martin Ždila, a senior full-stack developer with two decades of experience and a Toptal-certified engineer. He has contributed to OpenStreetMap since 2010, is the developer behind the freemap.sk portal — a TypeScript/React application with a Node.js back-end and a custom Mapnik-based map server — and serves as vice-president of the non-profit OZ Freemap Slovakia, the Slovak local chapter of the OpenStreetMap Foundation.
That work runs deep: imports of buildings from the cadastre, land-cover from Urban Atlas and CORINE, and countless mapped tourism and cycling routes — over 4 million OSM edits, recognised in 2016 with the OpenStreetMap Foundation's Greatness in Mapping award. Beyond maps we also build real-time communication platforms (WebRTC) and connected-hardware and IoT systems (ESP32, LoRaWAN, MQTT).
Much of this is released as open source — an extensive set of mapping tools, tile servers and rendering libraries (many in Rust) published across our Freemap Slovakia and personal GitHub organisations.
Work with usSelected work
Projects
A taste of what we build — maps people actually use.
Freemap Slovakia
Lead developer · ongoing
A free, open outdoor map of Slovakia and beyond, built on OpenStreetMap. We develop the web portal (TypeScript, React, Redux), the Node.js back-end, and a custom Mapnik tile server — including JsNik, a way to author Mapnik styles in JavaScript. Hiking, cycling and ski routes, offline maps, drawing and measuring tools, and more.
Carpathia
Development
A geospatial platform that consolidates tourism-sector data into a single database to foster sustainable tourism and the preservation of cultural and natural heritage. It supports networking, communication and cross-border cooperation, and helps members exchange know-how across the Carpathian region.
carpathia.geosupport.skSpetito
Own product · design & development
Spend time together — a social platform for sharing casual, non-binding activity offers with friends: a hike, a cottage weekend, a carpool. No likes, no ads, no noise — just a clear overview of what your friends are up for. Designed, built and operated in-house.
spetito.comTrack record
Companies we've worked with
Selected engagements delivered over the past decade.
MapTiler
2022 – 2025 · CzechiaGeocoding at planet scale: development of an OpenStreetMap-based geocoding service and search server, data pipelines converting Planet OSM into specialised structures, curated geodata processing, and the open-source geocoding control web component.
Gruveo
since 2016 · SlovakiaLong-term, ongoing development of a web video-calling platform — React/Redux front-end, Node.js back-end, WebRTC and WebSockets, deployed to AWS.
Fpt Slovakia
2018 – 2022 · SlovakiaSmart-home solutions for a major European energy group: React and React Native apps, smart-home hub on embedded Linux, ESP8266/Mongoose OS device development kit and Bluetooth Mesh lamp provisioning.
Encyklopedický ústav SAV
2022 – 2023 · SlovakiaMap-rendering service producing cartographic images for geography articles in Encyclopaedia Beliana, the Slovak national encyclopaedia.
Hotovo
2020 – 2022 · SlovakiaFront-end development for international clients — a mobility-as-a-service platform consolidating transport operators, and an energy-research web publication platform.
Nordlicht IT Solutions
2019 – 2022 · SlovakiaPrototype of an ESP32-based athlete-monitoring device — motion sensors, Bluetooth, GSM connectivity and MQTT — plus various React web applications.
Old Street Solutions
2021 – 2022 · SlovakiaSeed-distribution management web application built on React and deployed to AWS.
Earlier career: enterprise Java architecture and development (M-Way Solutions, EpiSoftware Slovakia), fintech and telecom systems — professional experience reaching back to 2000.
Community & speaking
- Regular speaker at State of the Map CZ + SK — annual talks on freemap.sk development (2016 – 2024).
- Presenter at Eastcode Sessions, Košice — OpenStreetMap, IoT & LPWAN (LoRaWAN, Sigfox), Mongoose OS.
- Interviews on OpenStreetMap and Freemap for TV Košice and RTVS Rádio Regina.
Toolbox
Technologies we work with
Chosen to fit the problem, not the hype cycle.
Front-end
- TypeScript
- React · Next.js · Svelte
- MapLibre / Leaflet / OpenLayers
- React Native
Back-end & systems
- Node.js · Deno · Java
- Rust (high-performance services)
- PostgreSQL / MySQL · Redis
- Docker · AWS · Linux
Geospatial
- OpenStreetMap data & pipelines
- Mapnik cartography · tile servers
- PostGIS · GDAL · GRASS
- Geocoding · routing · DEM & LiDAR
Real-time & IoT
- WebRTC · MQTT
- ESP32 · ESP8266
- LoRaWAN · Bluetooth
- Mongoose OS · Arduino
Contact
Have a map-shaped problem?
Tell us what you're building. We reply to every serious enquiry, usually within a day or two.