Is this a possible scenario? Can a EU-resident be employed by a Swiss company without the person having to move to Switzerland? If so, how does the taxation work?
Much appreciated.

Yes it is possible. Taxation depends on how you're set up in the non-Swiss country.

I work for a UK company, from Switzerland, via my Swiss GmbH. I pay no tax in the UK. I only actually work in the UK 8-16 days a year.

Thanks. I understand because the non-residency, no Swiss "Quellensteuer" can be calculated, thus the taxpaying rules of the country of residency will apply... ok well, these are just my assumptions.

Also wonder what happens with the Krankenkasse then.

Is this so extremely rare? I mean... none of you have heard of anybody, who has spoken to somebody, who had ever seen someone just working for Switzerland from another country?

Nothing happens with Krankenkasse, you're not resident. As you're not resident, income tax, whether quellensteuer (tax at source) or not, is not due.

Yes. This is not a problem at all. Plenty of French and Germans do this (frontaliers / Grenzgänger). Plenty of Swiss do this, being sent abroad for, e.g., project work.

Note that nationality does not matter - country of residence does.

The driving factors here are where you perform your work and where you live.

From the tone of your question it appears as if you would be performing work outside of Switzerland and, obviously, not live in Switzerland. In this case, you will most likely be taxed by your country of residence, with a small share of the(se) taxes going to Switzerland. The details will most likely be spelled out in a double taxation treaty between Switzerland and the country of your residence.

Independent of taxation, your employment would make you subject to the social security system of Switzerland - i.e. you would switch into the Swiss health insurance system ("Obligatorische Krankenpflegeversicherung EU/EFTA (KVG)"), pay unemployment insurance contribution, and also join the Swiss pension system (the contributions to which you may withdraw in part once your employment contract with the Swiss company has ended).

Just a small addendum: The above assumes that you perform your work in your country of residency - e.g. working from a home office.

It is quite possible to work for a Swiss company, have permanent residency in France, with the (typical) place of work being Germany. In this case, Germany would tax the income of your employment contract (OECD rules that income derived from employment is is subject to taxation in the country where the work is performed).

Course it is. You just cough up tax locally. Daft question!

Hi there
I worked for a Swiss Co for years, always based in Africa.
Everything was paid before I received my salary, Would I have been paying into a pension scheme in Switzerland ? and how would I find out.
Thanks