Projects

Lead Flutter Developer

Yourny Travel & Leisure

Description:

Full-Stack mobile app development with Flutter and Serverpod for a travel platform – including booking logic, payment integration, real-time features, and DevOps setup. Development of a comprehensive travel platform with hotel booking workflows, multi-participant vacation planning, and payment processing via Mollie. Backend development with Serverpod, PostgreSQL database management for 3 million hotel datasets, and Google Places API integration.

Skills & Tools:

Senior Flutter Developer

Elea.ai GmbH

Description:

Laboratory Information System for medical laboratories with barcode and document scanner functionality. Development of the first MVP with close collaboration with company management. Integration of camera-based scanners for barcodes and documents, integration into a top-tier team with consistently high performance under time pressure.

Skills & Tools:

Flutter Lead Developer

St. Leonhards

Description:

Water tracker app for customer loyalty with Health API integration. Taking over and further developing an existing prototype with close coordination and planning with project management. Integration of Apple and Google Health APIs, design implementation with animations, and internal API integration.

Skills & Tools:

Flutter Lead Developer

Rewe

Description:

Cookie planner app with local database for recipes, favorites, and ingredients. Responsive design for desktop, tablet, and smartphone with animations via Flutter and Lottie. Rewe SSO integration via OAuth 2 OpenID Connect and automation of CSV master data conversion into the data model.

Skills & Tools:

Flutter Lead Developer

VetZ GmbH

Description:

Conception, planning, and implementation of a comprehensive app ecosystem with Flutter, Dart, BLoC, and gRPC. Implementation of design system in cooperation with design team, onboarding of additional developers, and conducting candidate interviews. Development of prototypes for testing various interfaces.

Skills & Tools:

Flutter Trainer & Developer

ALTOW Digital Innovation

Description:

Training, onboarding, and coaching of team members and new employees in Flutter. Conception and implementation of MVP for an internal Flutter app with Riverpod and BLoC state management. Mobile app development with Flutter, Dart, and development of prototypes for testing various interfaces.

Skills & Tools:

Lead Developer

DGD Deutscher Gutachter Dienst GmbH

Description:

Tech lead with management and onboarding of new employees, technical conception of new features. Mobile app development with Flutter, Dart, and Redux state management. Backend development with Firebase, Firestore, Cloud Functions, TypeScript, and Nest.js. Deployment management for iOS and Android, and conducting usability tests with users.

Skills & Tools:

Angular & Node.js Developer

Galeria Reisen

Description:

Further development of booking platform with Angular 12, TypeScript, Sass, and Redux for the frontend. Backend development with Node.js, Express.js, TypeScript, Swagger, and REST APIs. Integration of Redis, MySQL, and TypeORM as storage technologies. Onboarding of team colleagues and first release of the new application.

Skills & Tools:

Java & Angular Developer

Deutsche Bahn

Description:

Development of automated schedule construction for construction operations with Angular and TypeScript for the frontend. Backend development with Java, Spring Boot, Mapstruct, JPA, Hibernate, and Maven. Coordination with other teams, team onboarding in Camunda process management, and integration of MariaDB, AWS, and Protobuf. Testing with Cucumber and JUnit.

Skills & Tools:

Consultant

Picard

Description:

Takeover of a Java legacy application for product planning, inventory management, and price calculation. Planning of re-implementation with introduction of SCRUM development process. Onboarding of additional developers to the project and development of concept for re-implementation with future-proof technologies such as Java, Spring Boot, and Angular.

Skills & Tools:

Angular & Node.js developer

Thomas Cook

Description:

Realization of a tourism web application with Angular Universal for server-side rendering, TypeScript, and Redux. Backend development with Node.js, Express.js, TypeScript, Swagger, and REST APIs. Focus on performance optimization and consolidation of different APIs.

Skills & Tools:

Angular & Java developer

detim IT Consulting

Description:

Web application for project and employee management with Angular and TypeScript for the frontend. Backend development with Java, Spring Boot, JPA, Hibernate, and REST APIs. Microservice architecture with MySQL database and agile development using Scrum.

Skills & Tools:

.NET Developer

Vitaltec UG

Description:

Desktop application "Vieva" with implementation of pulse measurement and hardware communication. Data visualization, migration of core from .NET 4.7 to .NET Standard. Development and improvement of data visualization, conception and conduct of usability tests, code refactoring, and project planning.

Skills & Tools:

Curiosity and Commitment

World

Description:

Continuous development and commitment to modern technologies and sophisticated solutions. Ambitious problem solver with passion for innovative approaches and continuous improvement.