Amazon is poised for a big expansion to the Eastside.

The company has secured a lease for 354,000 square feet of office space at Schnitzer West’s Centre 425 in downtown Bellevue. Real estate brokerage Broderick Group also reported Wednesday that Amazon had “a pending lease” for the space.

Amazon will join a litany of other companies that call Bellevue home, including T-Mobile, Concur and Paccar.

Amazon declined to comment on the Bellevue lease.

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