Is it worth it to pursue bachelors (in CS) if I am already employed?

Is there any benefit to having that paper beyond getting to know the basics or the potential to do a master's in the future?

Honestly, the main benefit of getting a formal Computer Science degree is having the credential. It helps a lot with hiring, but since you're already employed at American Express, a lot of that benefit is moot. American Express is a well-known 100B+ company - I would be very surprised if you spent 2 years there as a well-performing software engineer and weren't able to find a good new opportunity afterwards.

I don't really believe there's that much you learn in school that can't be learned on the job or with online resources, which I talk about extensively in this discussion here. I'm also pretty skeptical of getting a Master's in Computer Science in terms of raw career value, which I talk about in-depth in this Q&A from an Apple engineer.

It’s also emotionally taxing on me, meeting the deadline for both of them while feeling like I’m not excelling in either of them.

Given this, I would look into dropping your degree or putting it on some sort of long-term hiatus. However, there are a couple things to check first:

1. Stability of your employment - Talk to your manager about your future prospects on the team and what the layoff climate looks like at AmEx. If prospects look good, there's more reason to drop school, but if they're not, it's nice having a degree to fall back on. Here are some other tactics on how to assess layoff chances for a company.
2. Clear it with your manager - I've seen a lot of engineers in your situation: They're already interning or working part-time, but also pursuing a degree. They want to just focus on the work. However, it's not a good look if a company is "inducing" people dropping out of college. I would get your manager's thoughts on all this, especially given that it's stressing you out.
3. Talk to your family - My family is very education-oriented, so if that's the case for you as well, I would also get their opinion.

Another thing to consider is some sort of middle-ground: Maybe you can continue doing both but cut your course-load and get less credits per half? Or you can do an on-and-off thing where some quarters, you just don't have school and are able to focus on work and life. That's what my wife did a lot as she was pursuing her Master's in CS.

How much longer until you finish the bachelors? If you're almost done, I would finish it -- you're right that getting a degree is largely paying for an expensive piece of paper, but it gives you some credibility in the job market, especially if you are early in your career.

A few things would make me feel better if you really want to drop out:

• You have tons of stability + growth at AmEx. "I'm doing ok" is not enough, you should be on the cusp of getting promoted, and your manager should be very happy with you.
• You have tons of connections and people who will vouch for you. This is a big part of the value of a degree, so if you already have this.

If you already had a bachelors and were debating about trying to complete your masters, I'd push much more toward dropping the degree: the value of a masters is dubious if you already have a job you're happy with. But a bachelors is different IMO.