1. There are lots of chinese who work in fed gov. Many in IT and financial officers. Not familiar with IT, but for FI not hard to get FI2, salary between 55 to 75k. Not too hard to get to FI3 after 3 to 5 years, salary between 72 to 95k. I have some chinese friends who are FI3 even FI4.
2. Language; better to get BBB. Can get it if you study hard. I learned french here in canada and got my BBB. Have chinese friend who got CCE.
everything is possible.
My feeling: perfect job for mom over 30.