PORTLAND, Ore. – Technology firm Trimble Inc. is leaving Portland’s Central Eastside, moving about 400 workers to a suburban office park this summer. Colorado-based Trimble (Nasdaq: TRMB), which bought Portland-grown construction software maker Viewpoint in 2018, is moving to Lake Oswego, leasing 35,000 square feet at 5665 Meadows Road. Trimble signed the lease Dec. 12 after an extensive search, company officials told the Portland Business Journal.