Full Stack Angular Expert Required

I am searching for an advanced Full Stack developer, specializing in Angular 4+. I require expertise for the development of a new Angular application, as well as for improvements to an existing one.

Ideal Skills Required:
- Proficient knowledge of full stack development.
- Deep understanding and experience with Angular 4+.
- Ability to improve existing applications, as well as create new ones from scratch.
- Excellent problem-solving skills, attention to detail and ability to deliver high-quality code.

Please include examples of prior work with both new application development and improvements of existing applications in your application.