Hello guys,
TLDR;
leave a company where I have big influence with less technical challenges for a big company where I am challenged but jus as an individual contributor

I am working for a good company as a DevOps engineer, made a lot of achievements and literally moved the company to a whole new level, however I am working all alone, no mentorship but I get to lead everything and take initiatives

You can imagine the stress working a lone with a big scale in terms of production and other teams that I should support

Have been promised that we will get a team but it has been 15 months and nothing happens

I feel that technical I am not growing enough since I don't have time to improve or any mentorship

Now I am offered a senior position in one of biggest fashion/retail companies in Europe

And I am not sure if I should leave or not, btw it involves relocating