Aron is available for hire

Aron Gergely

Verified Expert in Engineering

Software Developer

Location

The Hague, Netherlands

Toptal Member Since

December 10, 2020

Aron is a geoinformatics expert who's worked with top companies and institutions internationally—among them are engineering and geospatial firms, UN offices, startups, and NGOs. Besides being a software developer, he is an experienced analyst with deep knowledge in the geospatial domain. Aron is excited about developing applications that interact with large volumes of geographic information.

Python GIS Data Analysis Software Development Back-end Development Data Engineering Scientific Computing Scientific Data Analysis ArcGIS Relational Databases PostGIS Docker SQL PostgreSQL Git Geoserver LiDAR Web Map Services (WMS)

Portfolio

Rasterra (Freelance)

Amazon Web Services (AWS), REST APIs, Docker, GeoServer, OpenStreetMap...

DHI GRAS

OpenStreetMap, ENVI, ArcGIS, QGIS, Batch Scripting, Satellite Images...

Experience

Remote Sensing - 10 years Python - 10 years Geographic Information Systems - 7 years Consulting - 7 years Data Analysis - 7 years Software Development - 7 years Back-end Development - 6 years Scientific Computing - 3 years

Availability

Part-time

Preferred Environment

PyCharm, QGIS, Slack, Linux

The most amazing...

...thing I've done was to write code that sped up the data analysis from a remote-controlled submarine. The task was performed while onboard a transiting vessel.

Work Experience

GIS and Remote Sensing Specialist

2016 - PRESENT

Rasterra (Freelance)

Architected a map data aggregator and server. The aggregation involves periodically collecting, merging, and analyzing data via SQL queries.
Developed a prototype agricultural parcel detection methodology based on satellite imagery. The solution was successfully tested on one year’s worth of satellite data on a country level for three countries.
Managed all mission-critical geodata on maritime survey and explosive search operations.
Improved a full-stack application by extending its REST API and database.
Coached multiple startups on GIS development and analytics.

Technologies: Amazon Web Services (AWS), REST APIs, Docker, GeoServer, OpenStreetMap, PostgreSQL, QGIS, Linux, Git, Remote Sensing, GIS, Spatial Databases, SQL, Python, GDAL, Back-end Development, Software Development, Data Analysis, PyCharm, Jupyter Notebook, Agile Software Development, SciPy, JavaScript, Data Processing Automation, Relational Databases, Geographic Information Systems, Django, PostGIS

Junior Consultant

2013 - 2015

DHI GRAS

Designed and ran a processing pipeline for 3.6TB of raw satellite imagery to create a seamless imagery base map for Europe.
Ran segmentation-based algorithms to classify image features to detect surface types.
Worked with state-of-the-art commercial and open-access satellite imagery coming from NASA, ESA, Maxar, Airbus, RapidEye (Planet), and others.

Technologies: OpenStreetMap, ENVI, ArcGIS, QGIS, Batch Scripting, Satellite Images, Consulting, Python, Remote Sensing, GIS, GDAL, Data Analysis, Data Processing Automation, Geographic Information Systems

Experience

Continent-scale High-resolution Image Mosaics

I developed a processing pipeline for continent-scale mosaicking and harmonization of 20m and 5m resolution satellite imagery for the Copernicus Land Monitoring Service (CLMS) and assisted with the web service deployment. The outputs were seamless basemaps for the European continent. The project was carried out for the European Environment Agency.

Map Data Aggregator and Server

I helped to architect and implement a data aggregator and map server. The aggregation involves periodically collecting, merging, and analyzing data via SQL queries. The software stack consists of PostgreSQL and GeoServer runnig on Amazon Web Services.

Skills

Languages

Python, SQL, JavaScript

Tools

GIS, LaTeX, Git, ENVI, Slack, PyCharm

Other

Remote Sensing, Geographic Information Systems, QGIS, Satellite Images, LiDAR, OpenStreetMap, Data Processing Automation, Xarray, Scientific Computing, Scientific Data Analysis, Consulting, Data Analysis, Software Development, Back-end Development, Data Engineering, Batch Scripting, Web Map Services (WMS)

Libraries/APIs

ArcGIS, GDAL, REST APIs, SciPy

Paradigms

Spatial Databases, Agile Software Development

Platforms

Docker, Linux, Jupyter Notebook, Amazon Web Services (AWS)

Storage

Relational Databases, PostgreSQL, PostGIS, GeoServer

Frameworks

Django

Education

2012 - 2015

Master of Science (MSc) Degree in Geography and Geoinformatics

University of Copenhagen - Copenhagen, Denmark

2007 - 2012

Bachelor of Science (BSc) Degree in Geography — Specialization Track in Geoinformatics

University of Szeged - Szeged, Hungary

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring