How much does years of experience actually matter to be a Senior SWE?

How much does years of experience actually matter to be a Senior SWE?

In an ideal world, it doesn't matter at all! If you are operating as a senior software engineer, then you should be leveled as a senior software engineer. Unfortunately, the world mostly doesn't follow this mentality, which I cover more later on.

And that being a senior after 3/4 years in the industry is a bit quick and needs at least 5-7.

I really dislike this mentality, but it's unfortunately very common across the tech industry (and just corporations in general). There is this expectation that you need to effectively be a certain age before you can attain certain levels, and that throws meritocracy out the window.

For what it's worth, 5+ YOE is generally the bar to be considered senior, but that's more for a job switch (and even then, there's a lot of nuance there). I feel like one main reason tech is beautiful is because anybody can be a "whiz kid" due to how accessible and innovative it is: I've met several engineers who were operating at senior with just ~3 YOE. Unfortunately, most companies won't level you at where you actually are.

In that case if the years of xp is so important, should I even operate at a senior for 2 years if I can’t even be considered for it until some arbitrary time has passed? It seems like extra effort to be paid the same.

I don't think so, and that last part is completely right (it's just not worth it). However, there are reasons to stay like the company having stellar WLB, you really liking your team, and/or you hate interviewing.

If you're really bullish on continuing your growth and being paid/level properly, you could consider looking for another company after your promotion. I recommend chatting with your manager more though before doing that. I would ask them if a promotion to senior is really impossible if you're meeting all expectations at that level and can objectively show that you're operating at the same level and having the same impact of other senior engineers in your org/company.

All that being said, I felt like Meta is an incredible company for being leveled properly and is an industry leader with seeing past raw YOE. I saw E3s make it to E5 with just 2 YOE (one of them was mentored by me!).

Related resources:

• "How to identify projects that are more suitable for senior engineers?" - Great Q&A from a mid-level engineer at Microsoft
• How I Mentored Junior SWEs [E3] to Senior [E5] In Just 2.5 Years At Meta