This selection of projects is meant to illustrate the kind of work I have done in the past. Some entries are small, some are large. What I hope you take from this is that you do not need a huge budget to hire a freelancer (me).

As a freelancer

10/2022 – 12/2022

Upgrade of a Large TYPO3 System

A&B One Kommunikationsagentur GmbH for Klinikum Region Hannover GmbH

  • Upgrade the internal and external TYPO3 systems from version 9 to version 11 (via v10), including all extensions.
  • Integrate with SAP SuccessFactors for the job board.
  • Provide a detailed migration plan for the colleagues in IT.

Read more about this project in my TYPO3 spotlight.

05/2022 – 09/2022

Development of a Customer Engagement Platform

A&B One Digital GmbH for endica GmbH

  • Create a forum for communal energy providers, based on the Open Social distribution for Drupal 9.
  • Implement a design into a frontend theme for Drupal.
  • Integrate with internal services.
  • Create a system documentation for the customer editorial team.

Read more about this project in my Drupal spotlight.


Support for a Drupal Wiki

Festsaal Kreuzberg

  • Help the team understand the possibilities of their tools.
  • Extend the internal Wiki.


Integrating a Newsletter Into Wordpress

Centre for Social Critique at Humboldt-Universität zu Berlin

  • Develop a newsletter post template.
  • Integrate into the university’s own mailing list manager (sympa).

02/2022 – 03/2022

Optimization of a TYPO3 Website

publicgarden GmbH for Bundesverband der Arzneimittel-Hersteller e.V.

  • Improve load times on desktop and mobile devices.
  • Extend the internal members’ area.

10/2021 – 01/2023

Continuous Maintenance of a TYPO3 System

A&B One Kommunikationsagentur GmbH for Diakonie Schleswig-Holstein

  • Deployment of minor updates and extension fixes.
  • Implementation of customer change requests.
  • Help with migration of hosting providers, including DNS and mail systems.

As an employee


Cross-Platform Mobile App

A&B One Digital GmbH for Diakonie Deutschland

  • Build an image composer application for iOS and Android using Flutter with Dart.
  • Coordinate with Design, Concept, and customer to iteratively reach a satisfactory result.

Read more about this project in my mobile app spotlight.


Interactive Applications for an Exhibition

A&B One Digital GmbH for RAG Aktiengesellschaft

  • Implement interactive information displays based on Windows PCs running in kiosk mode.

Read more about this project in my applications spotlight.


Accessible Website for Visually Impaired People

A&B One Digital GmbH for Deutsche Blindenstudienanstalt e.V.

  • Implement an accessible frontend for a website.
  • Ensure the Drupal backend can be used by visually impaired editors.

Read more about this project in my accessible websites spotlight.