Scalable Web-App Development on GCP

I'm seeking a professional with extensive experience in cloud computing and Micro-service architecture. Your task will be to develop both the front-end and back-end of a web-based application, specifically designed for scalability on the Google Cloud Platform (GCP).

Key Responsibilities:
- Creating a highly scalable web application
- Utilizing Micro-service architecture and related technologies
- Developing a front and back end

Essential Skills and Experience:
- Proficiency in Micro-service architecture
- Extensive knowledge of Google Cloud Platform (GCP)
- Front-end and back-end web development experience
- Familiarity with scalable web application design

User Authentication:
The application will use a simple yet secure username and password authentication method.

Goal:
The primary objective of this project is to significantly improve the scalability of the web application. Your ability to design and implement an application that can handle increased load gracefully will be key to the success of this project.