How do you hire professional android developer for social application (chat app)?

Hiring a professional is not a standard process and varies from organization to organization. But the basic process involves is listed below.

1. Share your idea with the developer

2. Ask for suggestions

3. Finalize the development idea mutually

4. Ask for Quote and development timeline

5. Evaluate the quote of multiple agencies

6. Carry out background checks (Portfolio, customer reviews, experience)

6. Make necessary changes to the requirement if need be

7. Finalize the quote and development timeline

Hope the above steps help you hire a developer to develop a chat app successfully.