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Case studies

Experience that counts.

The projects listed here come from prior engagements of our founding partners. That is where we built the expertise we now bring to non-profit organisations under one roof.

  • IT
  • AI
2022–2025

Scalable IT platform for a nationwide education programme

Course management, matching and self-service tools for one of the best-known non-profits in digital education.

Prior role at Hacker School gGmbH (Rachel-Sarah Sircar as IT team lead, Matthias Feldmann as Vision Officer, Andy Freudenberg as consultant)

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  • Data Analytics
  • AI
2021–heute

Data analytics on course feedback from 25,000+ participants

AI-assisted analysis of open-ended feedback data from several thousand courses – as the data foundation for impact reporting.

Prior role at Hacker School gGmbH (Matthias Feldmann as Vision Officer)

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  • IT
  • Finance
2019–2023

Digital transformation at a German financial services provider

Replacing a legacy core system, cloud-native processes and a compliance-conformant migration.

Prior role at macros Financial Technology Consult GmbH (Andy Freudenberg)

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  • AI
  • IT
2024–heute

Central AI chat frontend for a non-profit GmbH

Open-source frontend (Open WebUI), model selection by cost and data protection, rollout and continuous development.

Prior role at Hacker School gGmbH (Rachel-Sarah Sircar as IT team lead, Andy Freudenberg as consultant)

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  • Finance
2022–2024

Building controlling and annual reporting at a non-profit GmbH

Cost accounting compliant with non-profit law, grant tracking and HGB annual statements with NPO specifics.

Freelance engagement via Eisenhardt Consulting UG (Joana Eisenhardt)

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  • Finance
  • IT
2018–2026

SAP rollouts and finance processes at an international retail group

Multi-year support of SAP FI/CO and MM rollouts across multiple waves and countries – covering R/3 and S/4HANA, BPMN process design and the first RPA in finance.

Prior role at ALDI SÜD (Joana Eisenhardt as Business Analyst)

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  • Finance
2020–heute

Finance, tax and HR for a growing non-profit GmbH

Multi-year support across accounting, non-profit tax law, HR systems and an international subsidiary.

Freelance engagement via Eisenhardt Consulting UG (Joana Eisenhardt) for Hacker School gGmbH

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