My 17 year old son is a full time student (senior) and works a full time job, he made over $17,000.00 in 2018. My question is, can we still claim him as a dependent? And my 2nd question is, if we can

[Carl]

Yes, he is still your dependent. If he lived in your household and you provided more than half of his support for the entire year, then he can earn a million dollars and still qualify as your dependent.

Now because of his earnings, your son is "required by law" to file a tax return. When he starts his return he *MUST* select the option for "I can be claimed on someone else's return".

Also, since you are claiming him, you should e-file your return first. Then let him e-file after you.