![How to Use GA4 to Track Social Media Traffic: 6 Questions, Answers and Insights [VIDEO]](https://www.orbitmedia.com/wp-content/uploads/2023/06/ab-testing.png)
![How Human Behavior Impacts Your Marketing Strategy [Video]](https://contentmarketinginstitute.com/wp-content/uploads/2025/03/human-behavior-impacts-marketing-strategy-cover-600x330.png?#)
![How to Make a Content Calendar You’ll Actually Use [Templates Included]](https://marketinginsidergroup.com/wp-content/uploads/2022/06/content-calendar-templates-2025-300x169.jpg?#)
![Building A Digital PR Strategy: 10 Essential Steps for Beginners [With Examples]](https://buzzsumo.com/wp-content/uploads/2023/09/Building-A-Digital-PR-Strategy-10-Essential-Steps-for-Beginners-With-Examples-bblog-masthead.jpg)
Full-Stack Developer for QR Code Web App (Backend & Server Setup)
? Project Overview: We are developing a QR code-based Web App for a Brazilian Jiu-Jitsu school in Germany. The app will allow students to check in via QR code, and instructors will manage attendance through a dashboard to track progress and belt promotions... (Budget: €6 - €12 EUR, Jobs: .NET Core, Amazon Web Services, Linux, MySQL, Node.js)
? Project Overview: We are developing a QR code-based Web App for a Brazilian Jiu-Jitsu school in Germany. The app will allow students to check in via QR code, and instructors will manage attendance through a dashboard to track progress and belt promotions... (Budget: €6 - €12 EUR, Jobs: .NET Core, Amazon Web Services, Linux, MySQL, Node.js)