William Durand

Senior Staff.

I remember a conversation I had with a colleague a while back, shortly after I joined, where they told me that promotions at Mozilla were almost inevitable—that if you just stuck around long enough, you’d get promoted eventually1.

It certainly didn’t feel like that to me.

I’ve been working at Mozilla for about 7 years and I was last promoted in 2021. I joined the WebExtensions team in 2022 to work on Manifest Version 3, and then I led the engineering efforts to offer full add-ons support for Firefox for Android in 2023. I became the tech lead for Add-ons in 2024.

This month, I’ve been promoted to Senior Staff Software Engineer! 🥳

But, what is a Senior Staff? Mozilla says it is an individual “recognized as one of a small set of renowned experts in an important area”, who is able to “lead projects requiring implementation across multiple teams”.

I’m grateful to my manager and coworkers for their support and guidance over the years. I’ve been able to achieve so much more than I thought possible thanks to them! ❤️

  1. Coincidentally, and years later, another colleague told me this person had actually worked hard to get where they were, and it wasn’t just a matter of showing up and waiting for a promotion to happen 🙃 

ℹ️ Feel free to fork and edit this post if you find a typo, thank you so much! This post is licensed under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

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Photo used on social media by @ghebby.

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