I persume it is a bachleor's engineering degree.
In the core engineering sector, he can focus on
a job related to civil,aeronautical,marine,electrical,mechanical, biomedical or computer engineering.
He can also focus on operations management, logistics and supply chain management, Purchase and procurment section managers, a techincal expert in sales,training and consulting.
So, as a fresher, based on his stream he can choose into any of these and work towards an internship or a first job as a fresher.
These days, just a bachleor's degree is not enough to get a well-paying job. He needs to be GATE qualified with a good score that will lead to employment or an enrollment in to a Masters engineering program. After this, he can takeup the Research fellowship(JRF) exams and look at employment in any of the large PSUs and Government defense and science research related institutions (ISRO, IISc, DRDO).
If he is interested in an academic career as a teacher, he can complete his Masters and then take up the NET/SET exams that will enable him to be a faculty member in an engineering college.
If he does not want further education now, then he can consider the competitive exams of IBPS, Civil service or UPSC exams.
Whatever he does, he needs to have an open mind beyond government jobs and consider other avenues including overseas employment (merchant navy, an overseas petroleum industry based jobs, an overseas manager of a warehouse or a food chain store handling logistics etc)