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Biography
i bring over three decades of development experience covering a wide range of environments, systems, methods and philosophies that passed by or stayed over the years.
And still: i am hungry for more.
Since 6 years my passion is development for Apple platforms. Mainly iOS / iPadOS but also macOS, watchOS and tvOS focusing on Swift / SwiftUI but coming an Objective C background.
self employed
Thallos Sofware — Development lead
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
- some smaller apps active in the AppStore
- the websites www.acalc.de, www.aquacalculator.com and www.thallos.de
Senior software developer
hagebau IT
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.
Responsibilities include:
- erp expert
- progress OpenEdge
- erp system hibis
- erp system hawis
- SAP / ABAP
apprenticeship
Gruner + Jahr
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”
fluent with
- XCode
- Swift / SwiftUI
- Objective C
- Core Data / SQLite
- AppKit / UIKit
- UI Design
- git
- REST
- API
- progress ABL
- proALPHA
familiar with
- Github - Gitlab
- Firebase / Crashlytics / Sentry
- HockeyApp / App Center
- CocoaPods
- CakePHP
- PHP
- Databases / MySQL, progress
- Confluence
- Jira
- Scrum
- SQL
- SonarQube
- CI
- Java Messaging (SonicMQ)
- HTML
- XML
- EDI
- Jekyll
- fastlane
- Hugo.io (Static site generator)
- Wordpress
- Homebrew
Interests
- AI
- GraphQL
- Kotlin
in earlier times
- perl
- Filemaker
- ABAP
- Sculptor
languages
- german (native)
- english (good)
- french (basics)