Yes, Bharat Sanchar Nigam Limited Junior Engineers can apply for the Management Trainee post provided that they have sufficient education qualification as per the official advertisement.
Any working TTA who possess the following qualification can apply for the BSNL MT post as an external candidate.
B.E. or B.Tech degree from
- Computer/IT, &
- Electrical engineering
M.B.A. or M.Tech regular full-time degree or diploma.
So the existing BSNL JEs, who possess above-mentioned qualification and are under 30 years as on 01.08.2019, can apply for the post of Management Trainee as an external candidate. They have to inform the BSNL by writing about appearing in the recruitment examination.