Benjamin Keffer.Ideas, turned into software.

Concept and implementation of a KPI dashboard platform for the strategic management of a large hospitality and entertainment business. Heterogeneous data sources (ERP, hotel PMS, POS, external sales channels) are consolidated in real time and visualized in a cross-platform app.

• Bachelor thesis as foundation – evolved into a board-level platform
• Real-time aggregation across ERP, hotel PMS, POS and external sales channels
• Cross-platform apps (iOS, web, native) on a shared .NET API
• Role- and tenant-based model for strategic and operational views

Microservices architecture as a central backend for the distribution of admission tickets and digital products. Integrated with point-of-sale systems, turnstiles, barriers, hotels, resorts and external sales channels. Foundation for digital products such as resort passes and multi-channel tickets.

• OAuth2-secured gRPC APIs behind an Envoy proxy
• OpenTelemetry pipeline for end-to-end tracing across 30+ services
• Integrated with POS, turnstiles, barriers, hotels and external sales channels
• Headless web storefront in Next.js on the same API

Editorial website for “probably the smallest bakery in Germany” in Endingen am Kaiserstuhl. Four-generation storytelling, curated assortment of 90+ varieties, bread-sommelier area, donation breads and tasting events – calm typography, print-inspired.

• Storytelling across 4 generations, calm typography, print-inspired
• Assortment module with 90+ breads and rolls, categorized
• Bread-sommelier area for tastings and tasting events

Brand website for a pub in a listed timber-frame building in Endingen am Kaiserstuhl. The site tells the emigrant story around Colonia Tovar in Venezuela and ties it to the bistro menu, drinks world and beer garden – warm, authentic and steeped in history.

• Storytelling around the emigrant story of “two homelands at one bar”
• Drinks world from South-Baden beer to Kaiserstuhl wine and Venezuelan rum
• Bistro menu, opening hours, beer garden and FAQ in a calm layout

Brand website for a traditional wine tavern with refined Baden cuisine in Endingen am Kaiserstuhl. A family story with Venezuelan roots, regional wines, lunch menu and tasting evenings – nostalgic-elegant yet down-to-earth.

• Family story as a “bridge across the Atlantic” – Kaiserstuhl meets Colonia Tovar
• Regional Baden cuisine with Venezuelan influences, lunch menu and tasting evenings
• Kaiserstuhl wine selection, reservation, opening hours and image gallery

Brand presence for two farms in Dreisamtal and Hexental. Animal storytelling, farm-shop showcase, direct sales for meat boxes, potatoes and apple juice – grounded, warm and honest.

• Two farms – one brand, clearly separating dairy and pasture operations
• Direct sales for meat boxes, potatoes and apple juice
• Farm-shop module with opening hours and addresses

Web presence for an established law firm in Waldkirch (65+ years). Clear focus-area navigation across construction, insurance, commercial and corporate law; careers and client areas with current notices.

• Focus-area navigation across construction, insurance, commercial and corporate law
• Careers and client area with job postings
• Current notices, project archive