Tester / Qa specialist (including some assistant tasks)

I am looking for a QA specialist/assistant with software testing skills to work on different tasks in my projects.

You will need to:
1. Test new software features in the web technologies-based desktop software and on websites.
2. Support clients 7 days a week from a mobile phone or computer (not many inquiries daily) in the EST (New York) timezone. For the support, we pay separately (for replies in simple words).

And do different other tasks.

You must work up to 20 hours per week each working day.

Requirements:
1. English level at least C1 (advanced).
2. You need to have a personal computer with at least 8GB RAM memory.
3. You need to have an unlimited Internet connection.

We pay:
For the tasks except client support, we pay $ per hour.

For client support (for each of your replies, but multiple messages in a row are counted as 1):
LIVE_CHAT_DURING_5M_COST=0.30
LIVE_CHAT_AFTER_5M_COST=0.10
RATING_5_COST=0.40
RATING_4_COST=0.20
EMAIL_DURING_1H_COST=0.30
EMAIL_AFTER_1H_COST=0.10