Mainframe technology is the core of computing infrastructure and services provide all around the globe. All the big IT industries have projects on mainframe technology. Mainframes may be old but are still relevant in the market, as most of the financial industry rely on mainframe for running its business. Job opportunities in the field of mainframes may not be immense but they are substantial. Other technologies may offer more number of opportunities as compared to mainframe jobs but with more number of opportunities the competition is also higher in these other sectors. Mainframe jobs are available in the field of application programming as well as system administration. The typical role of an application programmer may involve designing the technical solution, implementing by coding and testing, whereas a system administrator is involved in security administration, system security monitoring and installation and maintenance of security tools.