aboutme


 
 

Skills

 

 fluent with

  • XCode
       > 10 years
  • Swift
       5 years
  • SwiftUI
       2 years
  • Objective C
       9 years
  • Core Data / SQLite
       9 years
  • AppKit / UIKit
       9 years
  • Cocoa
       9 years
  • git
  • REST
  • API
  • UI Design
  • Testing (XCTest)
       4 years
  • UNIX-Shell
       > 20 years
  • Progress OpenEdge ABL
       > 20 years
  • proALPHA
       > 10 years

familiar with

  • PHP
       > 10 years
  • CakePHP
       8 years
  • Java
       2 years
  • Github / Gitlab
  • Databases / MySQL, Progress
       > 20 years
  • fastlane
  • CocoaPods
  • Java Messaging (SonicMQ)
  • Firebase / Crashlytics / Sentry
  • HockeyApp / App Center
  • OpenAPI / Swagger
  • Scrum
  • SonarQube
  • Continous Integration
  • Jenkins
  • HTML
  • JSON / XML
  • openHAB
  • Hugo.io
  • Jekyll
  • Homebrew
  • Wordpress
  • many more…

Tools

  • Jetbrains
  • Postman
  • MAMP
  • Confluence
  • Jira
  • many more…

Interests

  • AI
  • GraphQL
  • Kotlin

in earlier times

  • Perl
  • Filemaker
  • ABAP
  • Sculptor

languages

  • Deutsch
       native
  • Englisch
       good
  • French
       basics

hobbies

  • photography
  • travel
  • coding

Timeline

 

self employed

Thallos Software — Development Lead

June 1992 - Present -
 

Responsibilities include:

  • AquaCalculator - the number one App for enthusiatic reefer (iOS / macOS). Subscription based solution with a couple thousand active users and a few hundred positive feedbacks on the AppStore (adding up the older non-subscription based app and the new subscription based)
  • a self hosted CakePHP backend connected via a REST API to the AquaCalculator App
  • aPedia - Aquarium Encyclopedia - an App (iOS / macOS (Catalyst)) providing Information about animals you might want to keep care of in your aquarium. Designed to work with AquaCalculator. Technically an App done completely in SwiftUI. Incorporates a massive administrative layer for gathering and enriching data from various REST-APIs
  • Photowunder / GPSFix - (iOS / macOS (Catalyst)). An App to help you fix your missing or false location data in your Photos Library.
  • some smaller apps active in the AppStore
  • the websites www.acalc.de, www.aquacalculator.com and www.thallos.de



Senior Software Developer

hagebau IT

March 1996 - Present - Soltau
 

senior (full-stack) developer at hagebau IT. Currently working on our customized proALPHA based ERP solution prohibis covering a wide range of not just technical topics. Windows based frontend. Linux database- / appserver.

Responsibilities include:

  • ERP expert covering a wide range of topics: Warehouse Management, Inventory Control, Product Information Management, Mobile Data Entry, Distribution, Purchasing, Management Information System, Disposal Processing
  • Since 2021 Development of new middleware for master data management at hagebau headquarters <-> shareholder systems based on Java.
  • since 2014 Development Lead API to the external warehouse management pL-Store of proLogistik via SonicMQ.
  • 2012 Development Lead New MDE (Mobile Data Entry)
  • 2011 API for external tour planning system Tourbo.route of Tourbosoft via SonicMQ
  • 2011 prohibis b2b based on Webspeed / prohibis backend (https://shop.holzzentrum.de)
  • 2009 hagebau / ZEUS Hazardous substances database (https://gwu.hagebau.com) based on Progress OpenEdge and Progress Webspeed
  • 2008 Development hagebau topas for prohibis / ZART. Central article master for wholesale.
  • since 2003 Development of prohibis on the basis of proALPHA / integration of hagebau functions
  • 2002 New development Web interface ZART (https://zart.hagebau.com) based on Progress Webspeed. Central interface for controlling article change services / article information system.
  • 2001 New development ZART based on Progress OpenEdge ADM2. In-house solution for central article master data maintenance (ZART) Retail of the hagebau Group
  • 1999 Development SAP / ABAP. Introduction SAP / customising / programming hagebau adjustments
  • 1998 ERP hawis based on Sculptor (SCO Unix). Development of the hagebau ERP system for retail.
  • 1996 ERP hibis based on Progress 4GL (Unix). Development of the hagebau ERP system for wholesage.



apprenticeship

Gruner + Jahr

August 1993 - February 1996 - Hamburg
 

some early contacts with the apple world but also some pc stuff.

Responsibilities include:

  • developing FileMaker seminar management app
  • for the canteen: tranfering a lotus 123 file recipe collection to a database
  • first contact with “the internet”



school

Fachgymnasium Wirtschaft in Soltau

September 1990 - July 1993 - Soltau
 
Abitur / Allgemeine Hochschulreife