Hi, my name is Gerald and I am a software developer from Münster. On the internet, I usually go by ubergesundheit. For fun and recreation, I like to try out new programming languages and technologies, tinker with programmable gadgets and embedded systems, cook and eat tasty recipies and read or watch science-fiction. In Münsters Code for Germany division I voluntarily create civic tech with open data. I'm really interested in technologies and topics like Linux, containers, container orchestration with Kubernetes, decentralization and self-hosting. My secret weakness is owning and trying out mechanical keyboards.
You can find me on GitHub, Twitter and Keybase. You can also write me an email.
Projects
Verkehrsunfälle
Import and cleanup of
traffic accident data
consisting of multiple excel sheets. Uses
Kinto
as datastore and for validation.
Automated geocoding of ~112000
accident locations.
Deployment on Kubernetes
Technologies: Python, Kinto, JSON Schema, Docker, Nominatim, Overpass
CodeVerkehrsunfälle Editor
React app for human aided correction and validation of traffic accident
locations. Uses Material UI
as frontend framework. Kinto
as datastore and for user accounts.
Deployment on Netlify
Technologies: React, Material UI, Kinto
CodeMosmix Processor
Import open data weather forecasts of the DWD
into a PostGIS database utilizing PostgreSQL functions and partitions.
To be used in conjunction with
Mosmix-API
Technologies: Go, PostgreSQL, PostGIS
CodeMosmix API
API service to query Mosmix data provided by Mosmix Processor. Implemented as Caddy plugin utilizing pREST as CRM layer. Also exposes OpenAPI definition.
Technologies: Go, PostgreSQL, OpenAPI
CodeWeihnachtsmarkt
An interactive christmas market app for Münster. Hackathon project. Based on React and Mapbox GL JS for map display.
Technologies: React, Gatsby, Mapbox GL JS
CodeAssets Server
Utility container image for static web asset serving with gzip and brotli compression in a single binary inside a FROM scratch container.
Technologies: Go, Docker
CodeOther notable projects
- Coworking Spaces Münster - Collection of coworking spaces in Münster on a map and as CSV download
- Leaflet.EdgeMarker - A Leaflet plugin to indicate GeoFeatures outside of the map view. [JavaScript]
- Nanny - Monitoring of services based on periodic notifications to a HTTP endpoint. Contributed Slack notifier and other API improvements. [Go]
- Watchtower - Periodically pull container images and restart if required. Contributed Slack notifier. [Go]
- senseBoxPi - Read sensor values and transfer to openSenseMap using linux kernel builtins on the Raspberry Pi. [Go, Linux, Raspberry Pi]
- DialogMap - Spatially enhanced dialogues. Software developed for my masters thesis. [Ruby on Rails, Angular 1.2, Docker]
- Trinkwasser in Münster - Tap water contents visualization. Redeloyment from Code for Heilbronn. [JavaScript]
- Letter Drag - Soure code to an anagram game for Android phones. [Java, Android]
- geojsontools - Utility to convert GeoJSON points to a GeoJSON line. [JavaScript]
Work
- December 2019 – Now
- Front End Engineer at Giant Swarm.
Technologies: React, Kubernetes, Containers
- May 2018 – November 2019
- Full Stack software engineer at FoodTracks. Development and maintenance of customer facing software for order optimization & business data analysis. Maintenance and deployment of infrastructure and CI/CD.
Technologies: React, Python, Docker, Node.js, Ruby on Rails, Go, Ansible, Terraform, GitLab
- June 2016 – April 2018
- Full stack developer in the senseBox project at Institute for Geoinformatics: Development and maintenance of openSenseMap, an open source citizen science open data platform.
Technologies: Node.js, MongoDB, Docker, AWS, Ansible, Terraform, Arduino
- April 2014 – May 2016
- Software Engineer at con terra GmbH: Development of a winter service management platform frontend and a data portal frontend for environmental data.
Technologies: con terra map.apps, ArcGIS API for JavaScript, ArcGIS Server
- October 2013 – Februray 2014
- Intern at Zweitag GmbH: Development of a backend for a document orgaization software.
Technologies: Ruby on Rails, Elasticsearch
- June 2011 – August 2013
- Student worker at Institute for Geoinformatics: Support, administration and maintenance for the institutes IT. Development of internal management tools.
Technologies: PHP, MySQL
Education
- Master of Science Geoinformatics
- Completed at Institute for Geoinformatics. Thesis: Supporting Public Deliberation Through Spatially Enhanced Dialogs
Technologies: Ruby on Rails, AngularJS, Docker
Code - Bachelor of Science Geoinformatics
- Completed at Institute for Geoinformatics. Thesis: Arm gesture interaction with virtual globes: Implementation and evaluation
Technologies: Java, Kinect, NASA World Wind
Code