I currently work as a BA in Toronto, Canada and will soon be moving to London, UK for family reasons. I wanted to know more about the specifics of being a BA in London. 1. What the job market is like (has the Brexit affected it, will it have any effect in the future?), the average salary for a BA with 5 years of experience. 2. Difference between contract and full time positions (administrative, salary, job availability). 3. What specific skills/experiences are in high demand? Thanks for the help.

From my experience, you have to try for SEO   

There is a lot of opportunity for Business Analysts in London. You can find a highly paid job in BA job in London very easily as they are in current demand.

If you are wondering on where to look, i use this site often www.businessanalystjobs.co.uk 

Good luck with the move