Hello Jihan,
I checked your account and noticed that you registered for freelancer account only which allows you to search and apply jobs. You will need to create a client account to post a job and hire a freelancer.
To create a client account, you can go to Settings > Contact info and click on 'New Client Account' button.
I suggest checking out this help article to get started as a client. You can also learn more about the trends and best practices and get tips on making your project a success by visiting our Hiring Headquarters. Please note that there are two types of contracts, Fixed-Price, and Hourly contract and you can check their differences in this help article. You can also read about the valuable perk of payment protection we offer clients for Fixed-Priced and Hourly contracts.
Feel free to follow up if you have further questions.
Thank you.
