Is it considered ok from TS Background check perspective If I declare working permanent and a contract job at the same time ?
The big concern is does it create a conflict of interest with your respective employers.
That isn’t a security issue, That would be a contract issue for (no compete) within your permanent employer. I did 2 contracts once for 2 different IC agencies and 2 different contracts. One FT and and other PT on day off with no issues.