Jacob Bijani joined Tumblr as one of its original, most formative employees (and its first designer/product engineer) back in 2008—when a $1.1 billion Yahoo buyout was unfathomable. Now he's leaving.

According to a farewell post on Bijani's site, it seems like an amicable parting of ways between the Yahoo property and Tumblr employee #5, but who ever really knows.

Today was my last day at Tumblr.

Five years ago I joined a team of four as Tumblr’s first designer, creative director, and product engineer. That team has since grown to 182 of the most wonderful and talented people around.

I’m so proud of what we’ve all created together, and it’s been a privilege to contribute to something beloved by so many. I can’t wait to see what’s next for the product; I’m sure it will be nothing short of incredible.

There’s still a lot more I want to accomplish, and I’m really excited about this next chapter. For now, I’m going to take some time off to digest the last few years. I have about a dozen different projects planned, so expect more from me soon!

The timing can't be without significance.