What is core and non core business?
In this regard, what is difference between core and non core companies?
If you study in civil engineering and you get into civil engineering oriented firm with job role related to civil engineering then it is considered as core company for that particular candidate. If you go into IT firm or not related to pursed firm then it's considered as non core company.
Furthermore, what is core and non core jobs?
A core job will require you to utilize your skills which you've been studying in college. A non-core job will require you to perform based on a completely different skill-set. E.g. If you are pursuing civil engineering, a job in a construction company, or a design firm, or a consulting firm is a core job.
core business. The primary area or activity that a company was founded on or focuses on in its business operations. Many market leaders aim to maintain a strong position in their core business areas, but they usually remain open to developing new areas of activity as perceived business opportunities arise.