I have 15 years working for a bunch of unknown small businesses under my belt so I'm in a similar situation. The answer for me is a resounding no it did not help in the slightest. I too actually enjoyed doing these problems personally.
I think the types of companies using these tests are the big FANG type companies and they are mostly recruiting more junior people so for them 10, 15, or 25 years experience doesn't matter. They don't care how long you've been working just if you can balance a binary tree or solve NP hard problems in under 15 minutes.
So if you are applying for a FANG type job then yes definitely but the likelihood of you being picked is actually really low. Why you ask ? Because ageism is rampant in the tech sector so the FANG companies almost exclusively hire younger candidates (with 10 years experience you're not young).
What about other smaller companies using similar tests though? That's true but I've found most small companies that do these types of tests don't hire for some reason. I think they reject a lot of employees as they think they will get better candidates. So the likelihood of anyone getting a job there is really low.
My guess for the small companies that don't hire is that it's the incentives. If my outcomes as the hiring person are that a bad hire is a large negative, a no hire is a very slight negative, and a good hire is a slight positive (possibly even neutral), I'm going to prefer no hire most of the time. I believe this is a fairly common decision matrix.
For example:
bad hire lowers managements' opinion of my performance and can be costly to team morale, especially if company culture makes firing difficult
no hire can be blamed on lack of qualified developers rather than a competency issue
good hire is nice, but if current development team can push back on workload, that benefits the company much more than the development team
I think the types of companies using these tests are the big FANG type companies and they are mostly recruiting more junior people so for them 10, 15, or 25 years experience doesn't matter. They don't care how long you've been working just if you can balance a binary tree or solve NP hard problems in under 15 minutes.
So if you are applying for a FANG type job then yes definitely but the likelihood of you being picked is actually really low. Why you ask ? Because ageism is rampant in the tech sector so the FANG companies almost exclusively hire younger candidates (with 10 years experience you're not young).
What about other smaller companies using similar tests though? That's true but I've found most small companies that do these types of tests don't hire for some reason. I think they reject a lot of employees as they think they will get better candidates. So the likelihood of anyone getting a job there is really low.