As you have asked about the career in Air India Engineering Services Limited, I am giving you information about it, check below for the details
I have found following notifications:

R.T.Operator
Recruitment of Manager - Personnel in Air India Air Transport Services Ltd. ( AIATSL )
Recruitment of Manager - MMD in Air India Air Transport Services Ltd. ( AIATSL )
Recruitment of Manager - Finance/Costing in Air India Air Transport Services Ltd. ( AIATSL )
Recruitment-Trainee Cabin Crew (Male/Female)-Northern Region New Im1age
-Trainee Cabin Crew (Male/Female)
Cockpit Crew - Interview Result
Advertisement open till 13.11.2016
Recruitment-Sr. Trainee Pilot (With A-320 Endorsement)-Air India Limited New Im1ag
List of candidates who have qualified in the Psychometric Test held on 03.04.2016 and schedule of SPAC
Result-SPAC
Recruitment of Pilots (Commander) in AASL

To know more about it
Go to Air India website
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Click on Careers
The page open look like


Here you will get the information about the recruitment.