LPI is the only vendor independent organization which offers Certification in Linux, OpenSource etc. A LPI Certificate holder can handle various job roles successfully and effectively, some of them are follows:  

• LPI certified professional work as Network Administrator or Network Security Administrator which are one of the most blooming area of  IT industries, as with each passing day Information Technology services becoming more complex and sophisticated.
• LPI certified professional can work as a Security Administrator, Linux Server Administrator, Database Security administrator, Web Administrator, etc.
• LPI certified professional can work on emerging field like Computer Networking and Data Processing services. IT Industries are employing and integrating these job roles to work more effectively and efficiently.
• Person Passing LPI Certificate is expert in Linux and related Software and can work as a Linux Administrator.
• Linux Professional is emerging field of IT industry whose all criteria is fulfilled by a LPI certified Professional.

You can search also the jobs after LPI certification in dice.com, monster.com, and various job related sites.