Interview process is standard. There are telephonic and face to face rounds. Mostly the candidates are invited through internal references.
Once the job is allotted, remember to negotiate hard for higher compensation as the range is mostly 30-40% lower than what they say initially for the same job. Internally the salaries increase slower than market, and growth is also slower. Therefore its my recommendation not to stay in the company for more than 2-3 years. One can work in different companies and comeback to GE in a senior position instead of staying within and growing.
Change the jobs after 2-3 years as the pace of growth would start slowing otherwise and salaries would not increase as per market standards as the internal promotion is lower than market standards.