// Software Developer · Darmstadt, DE
IHK-certified application developer with 3+ years shipping internal enterprise tools — from tax-calculation engines to automated billing systems. C# at the core, full-stack when it counts.
I'm a software developer based in Darmstadt, Germany, specialised in C# and the .NET ecosystem. I build the kind of software businesses quietly depend on — billing automation, calculation engines, inventory and document-management systems — and I care about getting the architecture right, not just the feature shipped.
My work spans desktop (WinForms, WPF), web (Blazor, Angular) and the data layer (Entity Framework, SQL Server, Oracle). I've refactored large legacy codebases toward SOLID principles, designed databases from scratch, and worked directly with accounting, legal and operations teams to turn fuzzy requirements into shipped tools. I also build with Unity and have a solid grounding in data structures and algorithms.
Built and modernised internal billing and calculation software. Refactored ~40% of a legacy codebase toward SOLID, developed a fully automated monthly-billing solution, and shipped a Blazor web app for court-cost reporting backed by custom REST APIs.
Developed inventory-management systems and contributed to an OCR rollout for automated document capture. Owned features end-to-end — requirements analysis, UI and database design, testing, documentation and user support.
Implemented tax-metric calculation features based on German tax law, built a Microsoft Outlook add-in to streamline workflows, and developed an invoicing application with Excel export on top of existing company databases.
Designed and built a complete restaurant reservation system (NoSQL design, user & admin interfaces, Node.js backend, automated email notifications). Also developed Angular fraud-prevention directives and performance optimisations across the customer-facing app.
A fully automated monthly-billing solution built with the accounting team. Generic, multi-client-ready architecture with Entity Framework data access and Excel/Word generation via Office Interop for professional, templated invoice documents.
A lean Blazor web app giving legal teams an overview of cases that escalated to court proceedings, grouped by client and period. Backed by custom REST APIs with one-click Excel export for further processing.
Extended a core internal application with new calculation logic — interest computation and cost positions for daily invoice processing. Refactored ~40% of the legacy source toward SOLID, sharply improving maintainability, testability and scalability.
An end-to-end restaurant reservation platform: NoSQL database design, separate user and admin interfaces for restaurateurs, a Node.js backend, and mail-server integration for automated booking notifications.
Internal tooling to calculate tax metrics based on German tax law, plus a Microsoft Outlook add-in to streamline daily workflows and an invoicing module with Excel export built on existing company databases.
Inventory-management software plus a key contribution to an OCR rollout for automated document capture — covering requirements analysis, UI and database design, testing and end-user support.