Are you an employee (you get a W-2) or are you an independent contractor (you get a 1099-NEC)? If you are an independent contractor they are not supposed to take any tax out of your pay.
If you are an employee and no tax was withheld, it's too late to do anything about it now for 2023. You will have to pay the tax that you owe when you file your tax return. But if your income is low, it's possible that you do not have to pay any federal income tax. In that case, the employer was correct to not take any tax out of your pay.
For 2024 you can use the Tax Withholding Estimator on the IRS web site to figure out what to put on the W-4 form that you give to your employer, and give them a new W-4 if necessary.
