Always be the best you can be at what you choose to do on a daily basis (provided you keep a good work-life balance). Practice for the person you want to become or remain.
If you want recognition, ask for it.
Ask the people who are your customers to mention your good work to your boss(es). Ask them to mention how you helped them and the organization do well.
My last 3 years at work were similar except I didn't give a damn about career advancement. (Been there, done that, just wanted interesting work with nice people until I FIRED this year.)
None of the government people really knew what I did. None of them who should have been paying attention to it did so. So, about twice a year I would go to my government boss and explain that good people need attaboys when they've done good work. So, for the next 10 minutes, I needed him to let me tell him what I had accomplished so he could do provide the necessary management input. I did it with light-hearted, joking manner, but I was serious. This is an example of what the talk portion would be like:
"For example, it used to take someone in my job 2 to 4 weeks to put together a custom application that would do this task. Plus it would have defects in it that might interrupt the task. That was a problem because this app is used to track information that could result in people living or dying, and time is of the essence. A year ago, I got it down to 3 days of my time. I worked on other things for awhile, but two months ago I got it down to 4 hours. Today, I've gotten this task down to zero seconds. That's right. Zero seconds. And the next time you need a custom app like this it will also take zero seconds of my time to get it ready. Since it no longer requires me to program in a hurry, I won't have the opportunity to introduce random new defects into the code, either. So, now it's time for my attaboy!"
Note that I never explained a single technical thing about how I had done it, I only focused on benefits to the organization: time, money, quality, achieving the mission.
Hope that helps you become less invisible!