I'm a full-stack software engineer from near Hamburg, Germany, focused on building practical, product-driven software with strong ownership from idea to production.
I mainly work with modern web, backend, and product engineering, but I enjoy exploring many areas of software development — from embedded engineering and iOS apps to game development, OS-level experiments, automation, and AI-native tools.
- 🇩🇪 Based near Hamburg, Germany
- 💻 Full-stack engineer with experience owning business-critical e-commerce and internal operations platforms
- 🚀 Focused on product impact, performance, maintainability, and end-user experience
- 🧠 AI-native developer using modern tools to learn faster, ship faster, and improve software quality
Languages: TypeScript, JavaScript, PHP, Python, C#, C++
Frontend: React, Next.js, React Native / Expo, Tailwind CSS, Zustand, TanStack Query
Backend: Node.js, NestJS, Laravel, REST APIs, GraphQL, Prisma
Database & Infrastructure: PostgreSQL, Docker, DigitalOcean, Vercel, CI/CD, Sentry
Other: Shopify REST/GraphQL, Vitest, Jest, Cypress, Playwright, Cursor, Codex, T3Code
- Product-focused full-stack applications
- Internal tools that make real workflows faster and easier
- E-commerce platforms, integrations, and automation
- AI-native user experiences and developer tools
- Performance-critical systems
- Technical experiments across different domains
- Discord:
developerjoschi - E-Mail:
joschua.hass.sh@gmail.com - Website: jhass.dev