Now-a-days many people search for jobs online. Twitter can be used for searching jobs. It is one of the many social networking and microblogging websites. You can connect with employers related to your field. You can find jobs and internship opportunities in many ways though twitter.
In that account mention your skills, educational qualification etc. Don’t use this account for personal purposes.
On twitter you can search jobs using a particular keyword. For example #itjobs, #usjobs, #jobs etc. If you type the specific keyword in the search box, it will display the related result.
If you want a job from a specific location or particular company use Advanced Twitter Search.
If you follow a company related to your field you will get knowledge about that company, and what they are looking for. Establish connection with recruiters, So that you can get to know about any job vacancy.
There are some twitter accounts that post the job openings. By following them, you can get daily job alerts. Some twitter accounts that post jobs are @techfetch, @Qfetch, @twithire etc.