Xin Cho
If I may have one more question. In addition to essay detailing my current job, the application ask for previous employment details (responsibilities, reason for taking job and reason for leaving). There is no guideline on length and form (bullet points, essay). Given that this needs to be done for each past position, I would assume it should be rather concise. Would you have any recommendation please?
Yes, keep it concise. You can talk a bit more about your responsibilities (I did 246 words last year). Just make sure not to repeat your resume.
Your resume should list achievements, while this section is to detail what your job scope is essentially.
For organisation's main area of activity, it really depends on how well-known your employer is:
For example I worked in J. P. Morgan, all I stated was essentially the marcap of the company and what it does briefly, cuz it's obvious.
On the other hand, the other company I previously worked for was not as well known and my word count was triple that of JPM.
Reason for taking this role and reason for leaving was really about 20-50 words for me.
Hope this helps.