AngularJS & C# MVC Website Improvement

I'm seeking a skilled developer to implement enhancements on a website currently being developed with AngularJS for the Front-End and C# version 6.0 with the MVC design pattern for the Back-End.

Specific improvements include:
- Optimizing UI/UX elements
- Enhancing performance
- Adding new features

The developer will need to focus on both the Front-End and Back-End.

Key aspects of the Back-End that require improvement:
- Database interactions
- API integrations
- Security enhancements

Ideal skills for this job include:
- Proficiency in AngularJS
- Expertise in C# and MVC design pattern
- Strong understanding of UI/UX principles
- Experience with performance optimization
- Capability to add new features
- Knowledge of enhancing database interactions, API integrations and security measures