Gamified Business English Web App Development

I need a developer to build a gamified business English web app for both desktop and mobile platforms. The app will include:

- Scenario Cards: Interactive cards presenting real-world business situations.
- Skill Trees: Visual representation of language development paths.
- Weekly Progression: Track and display user progress.
- 2D Home Base: Central hub for navigation, with a professional and corporate design.

Ideal Skills and Experience:
- Experience in developing desktop and mobile web apps
- Strong UI/UX design skills with a focus on professional and corporate aesthetics
- Background in gamification and language learning applications
- Proficiency in responsive design and cross-platform compatibility
- Strong communication skills for regular updates and feedback

Please provide examples of similar work.