I'm waiting for GC interview. Working now, how do I file tax?

[fondary]

I married a US citizen. Got my EAD, applied for SSN and got a job now but I don't know how do I file tax, or do I need to?

[lexlugga]

Yes! U are eligible to file tax

[Mvwest]

I married a US citizen. Got my EAD, applied for SSN and got a job now but I don't know how do I file tax, or do I need to?

Yes you can and have to file taxes.
On the end of the year your work place will provide you with a W2 if you on payroll or a 1099 if you get pay as a SUB.
Take that to a H&R block and they will help you.