Ask HN: Finding a job in France or just the EU

I recently spent some time visiting friends in France with my family. On our return, me and my wife spent some time seriously discussing whether or not we can move out there.

So some background - I'm a polyglot developer in Financial Services with 2 young children (<5 years old). Oh and I'm British, voted against Brexit and not prepared to be a victim of the upcoming car crash for our economy. I read French and speak it conversationally but would definitely need some lessons to bring me up to business standards.

Can anyone recommend websites or other resources where I can find jobs out there? Any other tips you could give me?