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I developed a custom web application (MERN stack) to manage housekeeping operations, which is still actively used in the aparthotel business today. Later, I created various smaller React Native projects for learning purposes, before developing a large and complex cross-platform tourism application for a startup. The app includes a QR-code system, partner management, and dynamic pricing and availability logic. I would be happy to present both applications in more detail if desired.…I developed a custom web application (MERN stack) to manage housekeeping operations, which is still actively used in the aparthotel business today. Later, I created various smaller React Native projects for learning purposes, before developing a large and complex cross-platform tourism application for a startup. The app includes a QR-code system, partner management, and dynamic pricing and availability logic. I would be happy to present both applications in more detail if desired.

Paul Haas

App Developer, AI Strategy Consultant, Back-End Developer, +4

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I developed a custom web application (MERN stack) to manage housekeeping operations, which is still actively used in the aparthotel business today. Later, I created various smaller React Native projects for learning purposes, before developing a large and complex cross-platform tourism application for a startup. The app includes a QR-code system, partner management, and dynamic pricing and availability logic. I would be happy to present both applications in more detail if desired.…I developed a custom web application (MERN stack) to manage housekeeping operations, which is still actively used in the aparthotel business today. Later, I created various smaller React Native projects for learning purposes, before developing a large and complex cross-platform tourism application for a startup. The app includes a QR-code system, partner management, and dynamic pricing and availability logic. I would be happy to present both applications in more detail if desired.

Available to hire

I developed a custom web application (MERN stack) to manage housekeeping operations, which is still actively used in the aparthotel business today. Later, I created various smaller React Native projects for learning purposes, before developing a large and complex cross-platform tourism application for a startup. The app includes a QR-code system, partner management, and dynamic pricing and availability logic. I would be happy to present both applications in more detail if desired.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

German

Fluent

Spanish; Castilian

Fluent

English

Fluent

French

Intermediate

Work Experience

Full Stack React Native Developer at Explora Pass

September 1, 2025 - September 1, 2025

Designed and developed a cross-platform tourism app using React Native & TypeScript. Multilingual support (i18n) and Stripe & Payway for secure global payments. Developed a partner dashboard for managing experiences, bookings, and transactions. Implemented Appwrite backend with real-time sync and authentication. Use of Expo & EAS CI/CD.

CEO & Owner at EH Apartments

January 1, 2025 - January 1, 2025

Establishment and management of an apartment operation in the hospitality sector. Recruitment, leadership, and training of 15+ employees. Implementation of efficient business processes. Managed budgeting and allocation of marketing resources. Responsibility for controlling and accounting. Ensuring high guest satisfaction and quality standards. Developing and maintaining strategic partnerships. Introduced digital tools or systems to streamline operations. Ensured compliance with local hospitality regulations and safety standards. Successful business exit valued at over CHF 1 million.

Full Stack Web Developer (MERN) at EH Apartments

August 1, 2024 - August 1, 2024

Conception, development, and deployment of a web app MERN-Stack (MongoDB, Express.js, React, Node.js). Integration of an API connection to the Property Management System (PMS). Implementation of role and permission management (Admin, Manager, Cleaner). Development of time-tracking and payroll functions to simplify HR Management. Process automation of cleaning coordination.