I'm Martin, founder of Prutheus Software — a German software studio. On Freelancer you work with me directly: one senior engineer who takes your project from first idea to production and stays for the long run. WHAT I BUILD • Web platforms & dashboards — React, Next.js, Vue/Nuxt, TypeScript, Node.js, Python/FastAPI, PHP/Symfony • AI integration & workflow automation — OpenAI/GPT, DeepL, Azure AI, Apache Airflow, document processing, data enrichment • E-commerce — Shopware 6 (custom plugins, themes, B2B features), payment & ERP integrations, order-to-delivery automation • Mobile & cross-platform apps — React Native/Expo (one codebase for iOS, Android & web), Stripe subscriptions, offline-first PWAs • Data & backends — PostgreSQL, Supabase (Auth, RLS, Edge Functions), MongoDB, Redis, REST APIs, real-time sync • Deployment & operations — Docker, Kubernetes, Northflank, Vercel, CI/CD pipelines, zero-downtime deployments, monitoring with OpenTelemetry, Keycloak SSO SELECTED WORK → End-to-end digitalization of a food wholesaler: Shopware 6 B2B shop with 8 custom plugins, offline-capable delivery PWA for drivers, warehouse & pallet tooling, complaint management — 18 services in production → Multi-tenant ERP analytics platform: mirrors 14 JTL-Wawi ERP data sources into Supabase/Postgres with row-level security, live DHL & Dachser carrier tracking, PDF/CSV reporting — Next.js 15 on Vercel, scheduled sync jobs on Northflank → Cross-platform learning app: React Native/Expo shipped to iOS, Android and web from one codebase — spaced-repetition engine, exam simulations, Stripe freemium subscriptions, Supabase backend with 76 migrations → AI translation automation suite: Apache Airflow pipelines orchestrating DeepL/Azure AI machine translation, terminology sync and secure file exchange for industrial clients — containerized, running 24/7 HOW I WORK Clean architecture, typed code, tests, CI/CD and monitoring are standard — software you can still maintain in five years. Clear communication in fluent English and German, honest estimates, reliable delivery. GDPR-compliant handling of your data, German engineering standards. Available for new international projects — let's talk about yours.