Member Information

Jeff Tarr
Jeff Tarr Director, Systems Engineering

Jeff Tarr is Director, Systems Engineering at Sidewalk Labs, focusing on environmental sensing in the public realm.

Jeff Tarr is Director, Systems Engineering at Sidewalk Labs, focusing on environmental sensing in the public realm.

Prior to joining Sidewalk, Jeff was the founder and Chief Technology Officer of Junction, a company that brought “Internet of Things” sensors to buildings to improve energy efficiency and sustainability. As CTO, he was responsible for software development, hardware design, and manufacturing with teams in America, China, India, and the Ukraine. Jeff has worked in the technology industry for over 25 years in technology research, “smart home” design, and hardware development at Apple and other firms.

Jeff grew up on the Upper West Side and has a B.A. from Harvard in Computer Science. He still lives on the Upper West Side with his wife, Amy, and three children, Gigi, Penelope, and Theodore. In his free time he races cars, flies airplanes, runs marathons, and builds gadgets to make parenting easier.