Hello, I have read your job description carefully and it sounds very interesting to me.
I found that you want a single page that displays the user's location on a map using NoSQL and AngularJS or React.js.
As a senior web developer, I feel that I could do your project very well.
Speaking of my career, I mainly have been developing several types of front-end projects based on MERN Stack, AngularJS, Vue.js, and other frameworks for the last 7 years.
You would be satisfied with my progress on your project, as client satisfaction is my top duty and my responsibility is to do my best to finish this job earlier ahead of the appointed time.
Please feel free to get in touch with me for further discussion.
Thank you,
Artur