BEM REQUIREMENT
-has obtained 3 years practical experience as specified in Regulation 22(1) which shall include the following:
-at least two years of general training that will provide a sound basis for professional development; and
-at least one year of professional career development and training providing wide exposure to the various managerial and technical expertise in engineering practice where;
at least one year of the above training must be obtained in Malaysia under the supervision of a Professional Engineer in the same branch of engineering as that practised by the Graduate Engineer.
-Professional Engineers in other related branches of engineering may be accepted with the prior approval of the Board
has passed Professional Assessment Examination conducted by the Board;
has satisfactorily attended the required courses determined by BEM as follows:
Code of Ethics – 12 hours
Health & Safety at Works – 12 hours
Engineering Management Practices – 12 hours
Courses related to graduate’s branch of engineering – 24 hours

From what i have heard, i understand that in order to obtain the IR title, i must first join a consultant company. In that company, i must also work under a supervision of an IR and also write a thesis regarding the work i done. Only after 3 years of supervision and with my IR approval and recommendation , can i only take a test given by the BEM to obtain my IR title. (Correct me if im wrong, but this is my general understanding of the procedure.)

How does one even find a engineering consultant company in the first place or get the related position? Any help/advice would be appreciated.

There's already 2 threads on Professional Engineer in LYN.

https://forum.lowyat.net/index.php?showtopic=671181&hl=

https://forum.lowyat.net/index.php?showtopic=2363792&hl=

Y not ask there instead of creating a new thread?

'i must first join a consultant company' - not true, you can do any engineering works
'In that company, i must also work under a supervision of an IR' - Preferred, but if there's no IR of the same discipline supervising you, then you can find a mentor (IEM can assist, are you a member yet? Also are you registered with BEM already?)

anyway, your understanding is not entirely correct