You might consider Germany. The companies look for qualified workforce, and there is a strong chemical industry.
Nearly no prejudice against foreigners here, including in leader positions, and your qualified colleagues will all speak English. German is rather easy to learn provided you take lessons. The weather could be nicer depending on the location but life is easy.
Being an EU citizen, I can't tell how to get a visa. You may need an interested employer before applying for a visa: ask the German embassy or consulate where you live. For sure, do it within the rules, it's simple and citizens expect that.
Job offers are on the Internet, sometimes in English, some are still (most in German) in the Sunday edition of the Frankfurter Allgemeine Zeitung, Süddeutsche Zeitung and more, which you find in kiosks in Britain or can subscribe.
Switzerland too has a strong chemical industry located in the German-writing part (spoken is an exotic Germanic dialect). Best wages, most costly living. I know that many foreigners work in the Swiss industry and have leader positions. You need a visa, and I can't tell much more, except that the whole country works according to the rules, and is not an EU member.
The Netherlands have a chemical industry and seek qualified workers.
Canada is known to badly seek qualified workers and has an official immigration policy. If you speak French, try Québec, which has its own immigration agencies. Check the consulates.