It sure looks like Apple has big plans for Siri.

A significant number of those jobs look like they’re focused on improving Siri and developing more advanced artificial intelligence.

While Apple already has about 500 workers in the area, this marks a major expansion in Amazon’s hometown and is a sign that Apple plans to significantly invest in its artificial intelligence offerings.

According to Apple’s jobs page, openings at the new campus include machine learning research scientists, senior software engineers dedicated to Siri, and natural-language processing experts.

“Your work will advance and shape the future vision of our multilingual, multicultural Siri assistant, and Search applications used by millions across the world,” one job posting says.

The 630,000-square-foot campus will be located just a block from Amazon’s headquarters.

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