What is your expected salary after few years in accounting field? The salary increment in KPMG and Deloitte is not as high as what previous poster said.

If you are still earning below 3k as an engineer, you should try changing company or moving to different industry (marine / oil & gas). With 5 years+ of experience under your belt, you should be earning >3.5k. With overtime or overseas project, you can easily earn 5k per month.