No — your employer cannot legally strip away rights that Saudi Labor Law guarantees you. Article 8 is very clear on this: any condition in an employment contract that conflicts with the provisions of the Labor Law is automatically null and void, even if you signed and agreed to it.
This is an important protection for expats who may feel pressured to accept unfavorable contract terms. For example, if a contract clause tries to eliminate your right to overtime pay, annual leave, or end-of-service benefits, that clause has no legal standing, and you are still entitled to those rights under the law.
Article 8 also prohibits any release or settlement of your rights under the law during the validity of the employment contract. This means your employer cannot ask you to sign away your accrued rights mid-contract. If you believe a clause in your contract is unlawful, you can seek guidance from the nearest Labor Office (Ministry of Human Resources and Social Development).
This is general legal information, not legal advice. For advice on your specific situation, consult a lawyer licensed in Saudi Arabia.