Describe an important job in your country.
You should say:
what the job is
what people have this job
what the job requires
and explain why the job is important in your country.
I believe that the IT engineers are critically important and indispensable in every part of the society because the whole country, including the various business and non-profit organisations, are running on the IT systems.
To be eligible to work in the IT industry, someone must be good at logical thinking pattern. He must know mathematics backwards and forwards and has an extensive understanding of computer-related background knowledge, such as operating system, programme development, network and so on. Besides, he should shoulder the responsibility to develop and maintain the system operating smoothly and can, of course, work under great pressure.
On top of that, the job also requires rich experience so that he can deal with various problems, new demands. Therefore, he must immerse himself in the industry for a couple years to accumulate the necessary working ability and experience.
IT engineers need to design, develop the core systems of many other industries such as banking, insurance, telecommunication, manufacturing and so on, which heavily rely on their information systems to operate their own business. I guess their systems are the driving force behind their business and so are essentially important to them.