Hi
Greeting from Aravind Info Tech
Having understood that you are looking for a NodeJs expert freelancer to build a Admin web app and write API's for Mobile Application.
We are a team of unparalled professionals having 12 years experience completing 100+ projects in web application projects. We also work on iOS and Android application development.
We can achieve the results that you are asking for.
Looking forward from your end to discuss further.
**No need of any upfront payments, just create two milestones - Initial Release 10% as first milestone. equivalent to Freelancer.com project commission fee, and 90% as second milestone which you can release on successful completion of the project. **
Best Regards,
Lakshmi