hi,

see the essential eligibility criteria for ssc je exam is candidates must hold a diploma or degree in electrical/ mechanical/ civil or relevant discipline. however you must satisfy the age criteria.

Junior Engineer (Civil, Electrical, and Mechanical), Central Water Commission and CPWD    32 years.

Junior Engineer (Civil, Electrical & Mechanical), MES    30 years

however there is two papers, you must qualify in the paper 1 to appear in paper 2 exam. during the document verification or interview times you have to produce your qualification marks sheets, like bachelors, 10th , 12th. essential degree should be awarded on 01.01.2021 or before. so if your course is going to complete later you can not apply for it.

https://ssc.nic.in/SSCFileServer/PortalManagement/UploadedFiles/notice_eng_je_01102020.pdf