Zsolt Ero
Founder at MapHub
Budapest, Hungary
Summary
🤩
RockstarZsolt Ero is a founder and full‑stack software engineer based in Budapest with 14 years of experience building web and mapping products. He runs MapHub.net and blends front‑end UX work with back‑end data engineering, particularly around geospatial data ingestion, transformation and timezone/FIPS handling. An active open‑source contributor, Zsolt has improved widely used mapping libraries such as Leaflet and OpenLayers and helped harden GPX parsing and COVID-19 data pipelines. He combines pragmatic product instincts with deep technical attention to data quality and display correctness, from retina map tiles to scale line unit tests. Colleagues appreciate his knack for turning messy geographic data into reliable, debuggable services that power interactive maps.
13 years of coding experience
Stackoverflow
13,684reputation
2.0mreached
34answers
165questions
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Github Skills (48)
covid-testing10
unit-testing10
test-automation10
javascript10
sqlite10
python10
leaflet10
data-engineering10
gps10
vi10
data-transformation10
openlayers10
html10
maps10
co10
Programming languages (27)
Github contributions (5)
covidatlas/coronadatascraper
Mar 2020 - Apr 2020
COVID-19 Coronavirus data scraped from government and curated data sources.
Role in this project:
Back-end Developer & Data Engineer
Back-end Developer & Data EngineerContributions:40 commits, 25 PRs, 89 pushes in 1 month
Contributions summary:Zsolt primarily contributed to data ingestion, transformation, and feature generation within the COVID-19 data scraping project. They implemented features for handling country-level IDs, FIPS codes, and timezone calculations. Their work involved modifying core data processing scripts and integrating with geographic data sources, including country-level and state-level data. They also refactored ID transformation steps and added support for combining features, demonstrating a focus on data quality and geographical data integration.
datadata-sourcesscraped-datascrapinggovernment
tkrajina/gpxpy
Mar 2016 - Apr 2018
gpx-py is a python GPX parser. GPX (GPS eXchange Format) is an XML based file format for GPS tracks.
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits, 6 PRs, 13 comments in 2 years 1 month
Contributions summary:Zsolt primarily contributed to the GPX parser library, focusing on code improvements and bug fixes. They addressed whitespace issues, initialized empty variables, and modified file encoding settings. The user's work involved improvements to classes like GPXTrack, GPXTrackSegment, and GPXRoute, indicating a focus on refining the core functionalities of the GPX parsing library. They also added tests to improve the code's reliability.
gpx-libraryfile-formatpythonexchangefile-based
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