Can I travel to Finland indirectly given the current U.K. travel ban?

I wanted to ask if anyone would know if it is permissible for me to travel to Helsinki from the U.K. indirectly given the current travel ban on direct flights from U.K. to Finland? My travel would be regarded as essential in the sense that I have an employment contract for work and residence certificate from immigration in Finland.

For example, I was wondering if I could in principle travel from the U.K. to Amsterdam and then from Amsterdam to Helsinki? My worry is if I am allowed to do this given the current Dutch border control covid restrictions (or other similar restrictions in alternate transiting countries)? That is, it is not clear to me whether I need an employment contract/ residence permit also in the transiting country?

Thanks in advance for any comments!