Introduction

I am a software developer with a focus on Android, geospatial software, navigation and open-source technologies.

My work spans mobile applications, mapping and GIS, route planning, sensor platforms and web services. I enjoy building practical software that connects maps, data and users.

Current Work

I am an Android developer at Prometheus Informatics, where I work on mobile solutions for logistics, navigation and fleet management.

Alongside my professional work, I maintain several open-source projects in the fields of cartography, GIS and Android development, including OpenTopoMap Viewer.

Selected Work

OpenTopoMap Viewer

Open-source Android application for viewing topographic maps, GPX tracks and offline map data. The project focuses on cartographic quality, usability and integration with open geospatial technologies such as OpenStreetMap and OpenTopoMap.

Navigation & Logistics

Development of Android navigation and route-planning solutions for professional logistics. My work includes vehicle routing, fleet integration, route optimization and the implementation of navigation functionality for commercial transport applications at Prometheus Informatics.

Geospatial & Open Source

Development of mapping, GIS and cartographic software using open geospatial technologies. Projects include OpenStreetMap-based applications, routing solutions based on OpenRouteService and contributions to open-source software.

Sigrow Sensor Platform

Development of software for a sensor platform used in professional horticulture. Work included REST APIs for sensor data, integration with external systems and Android applications supporting growers with environmental monitoring and cultivation advice.

Contact & Business Details

Address
Kroonpark 2-4
6831 GV Arnhem
The Netherlands

Phone
+31 (0) 6 13267177

Email
serge.helfrich@gmail.com

KvK
66404584