Work
Selected projects – from inventory management to fund administration. Shown anonymized for confidentiality.
ERP · Inventory Management
Furniture retailer with a physical showroom, Berlin
- Problem
- An existing standard SaaS solution didn't match how the business actually handled orders, invoicing and inventory.
- Solution
- A custom-built ERP system that fully replaces the standard software, including first AI-assisted features.
- Result
- Hardened into a production-ready system after extensive real-world testing, tailored exactly to the business's workflows.
ERPNestJSReactPostgreSQL
ERP · Healthcare
Orthopedic and medical supply provider, international
- Problem
- Patient management, workshop orders, inventory and billing across multiple payers ran on paper and in fragmented systems.
- Solution
- An end-to-end ERP system that brings patient, workshop and billing processes together in one application.
- Result
- Fully digitized core operations, delivered through structured remote collaboration.
ERPNode.jsReactPostgreSQL
ERP · Website
Small manufacturer of handcrafted furniture and tile pieces, Berlin
- Problem
- Orders, receipts and customer management across several sales channels (direct, marketplace, website) were handled manually and separately.
- Solution
- A central system for orders, invoices and customers, enhanced with AI-assisted generation of interior-design concepts (product suggestions, color palettes) and paired with a new website as the brand's shopfront – deliberately simple for a non-technical owner to use.
- Result
- One coherent solution that fits the business, instead of scattered spreadsheets and manual steps.
Admin systemWebsiteAI IntegrationPython
FinTech · Private Wealth Management
Multi-client wealth management for a household
- Problem
- Real estate, bank accounts, stocks/ETFs, crypto and trading were scattered across banking apps, broker portals and spreadsheets – no consolidated view or systematic tax preparation.
- Solution
- A local, encrypted web app that brings all asset classes, cash flows and tax preparation together in one place – including an AI-guided interview that automatically reviews documents, spots gaps and walks through the tax return.
- Result
- A consolidated view across asset classes, including automated, AI-assisted tax preparation – instead of scattered single-purpose apps.
FinTechAI IntegrationPythonFastAPI
FinTech · Fund-style Administration
Trading partnership with a multi-layered investor structure
- Problem
- Capital accounts, profit distribution, reporting and broker data feeds needed to be traceable and automated across multiple capital contributors.
- Solution
- A local admin application that automatically ingests broker data, tracks capital accounts per contributor and generates reports.
- Result
- In live production use since early 2026.
FinTechPythonAutomation
FinTech · Tax Compliance
Tax classification of crypto transactions
- Problem
- Transactions across multiple exchanges and wallets had to be classified correctly for German tax law – but existing cloud solutions required sending the data to third parties.
- Solution
- A locally-run application that ingests transactions from various formats, applies wallet-based FIFO accounting and generates the annual tax summary – without financial data ever leaving the local machine.
- Result
- In ongoing use for annual tax preparation.
FinTechTypeScriptElectron
Business Tools · Freelancers
Admin software for IT freelancers
- Problem
- Clients, quotes, orders, time tracking, invoicing and tax preparation ran on a mix of spreadsheets, Word templates and manual steps.
- Solution
- One end-to-end tool from quote through time tracking and e-invoicing to a tax cockpit for ongoing bookkeeping – with a built-in AI assistant for briefings and analysis.
- Result
- In daily use for running the business's own client work.
Next.jsPrismaAI Integration