Sound Transit is a regional transit agency serving the Seattle metropolitan area in Washington State. It operates an integrated public transportation network that includes Link light rail, Sounder commuter train, and ST Express bus services, connecting communities across the central Puget Sound region from Everett to Tacoma.
The agency's technology teams support systems spanning light rail operations, commuter rail scheduling, and bus service management. Its infrastructure serves millions of riders annually, with ongoing expansion projects extending to West Seattle, Ballard, South Kirkland, and Issaquah.
Sound Transit operates under a Board of Directors and maintains transparency through public meetings and community oversight. The organization's work sits at the intersection of public transportation, regional planning, and large-scale systems engineering across the greater Seattle area.
