C is one of the foundations for modern information technology (IT) and computer science (CS).Many working principles of IT and CS, such as programming languages, computer architectures, operating systems, network communication, database, graphical user interface (GUI), graphics, image processing, parallel processing, multi-threads, real-time systems, device drivers, data acquisition, algorithms, numerical analysis, and computer game, are based on or reflected in the functionalities and features of C.
C is the base for almost all popular programming languages.Because of the performance and portability of C, almost all popular cross-platform programming languages and scripting languages, such as C++, Java, Python, Objective-C, Perl, Ruby, PHP, Lua, and Bash, are implemented in C and borrows syntax and functions heavily from C.
Job opportunities for C programmers include embedded engineers, Linux and unix programmers, android kernel development, Software developers, networking development engineer etc..