You're only 26 -
if you want to build any kind of stash
and truly have the skills and say a contract offer from a big US company in your pocket then I'd say - stay.
If you really would like to travel more than anything
then I'd say go with the BF to Great Britain and take a job there - after - you have residency status and a work permit.
Europeans have plenty of vacation and you'll be able to build a career and see the world.
As far as ultimately moving to the Netherlands - find out how complicated it would be to permanently move there and obtain a work permit for both of you. The laws are changing with Brexit - it means you can't just job hop all over Europe.
So even your BF will have to be sure his papers are in order.
Salaries:
Your best bet would be to work for an International preferably US-based company in a big city.
They often pay better, but still have to comply with the local labor laws - lots of vacation and paid sick days.
It is really a question of
do you like European style living - making less, but living a more enjoyable life that allows for travel and offers good, affordable healthcare?
You can't just move there because you want to do so on a whim - except for a short period of time, whatever the visa may allow - say 30 to 90 days.
Immigration takes time - no matter which country.
My suggestion would be to find the best paying job in the US you can possibly find and stash like crazy for five to max 10 years. During that time set up everything you need to have for buying a home to immigration paperwork.
With luck, you could find a job you can do online from anywhere in the world - later on.
I think you are right to travel while you are still young, but there are many ways to do it and still build a future and a secure retirement for yourself.
Right now the world is your oyster - which doesn't preclude stashing in the US for say five years.
I just returned from a two months stay in Europe and I found everything to be cheaper and a better quality of life.
To the poster/s above:
I can't agree about the beer since I visited Germany:) I was surprised at the number of craft beers in addition to the established breweries and I wonder where you were that didn't have good access to National Parks or outdoor spaces/recreation.
Open spaces - depends entirely on where you live.
Agreed:
Accumulating in the US and retiring in Europe seems like a good way to do it if you can swing it
True, however, personally I wouldn't be too keen to move to any country when I'm old, I think you will be happier and more successful if you establish residency by the time you are around 30 to 40's.
I visited Germany with the thought in the back of my mind - could I live there again just on my retirement income - if something happened to my partner? If so, where? and what do I require now that I'm old?
Conclusion: Yes, I could live very well on my income - much better than I had anticipated, living is cheaper, food and rent are cheaper. I forgot how pleasant life can be there.
More important, it seemed a kinder place to grow old.
I could afford to live wherever I wanted in Germany and travel all over Europe. Healthcare is great - better yet, it would save me an additional $700 in health insurance premiums a month as well.
So financially speaking a huge advantage to live in Germany and if both of us were to move we could save $3K a month. But, we are firmly entrenched here in the US - we'll be comfortable in retirement with a paid off house in the middle of Tourist Mecca near the beaches. The caveat here is that we have several excellent hospitals nearby and there is plenty to do with cool entertainment options, outdoor attractions, museums/exhibits and tons of restaurants and craft beer gardens everywhere:) even budget-friendly shopping for food and clothing.
If we moved, he'd miss his friends and he doesn't speak German, I doubt he'd be happy in the long run.
Nevertheless, it is good to know I'd be fine either way - it's always good to have options.
Good Luck OP!