Screen Recording Advertisement Video Creation

I've developed a web application and need an advertisement video to showcase its features. The video should primarily highlight the user interface, navigation and some unique functionalities of the app.

Key Requirements:
- Proficient in screen recording techniques
- Able to provide clear, engaging voiceover
- Experience in creating instructional or promotional videos

Skills and Experience Ideal for the Job:
- Video editing software proficiency
- Prior work in tech or app promotion
- Excellent communication and storytelling abilities