Nat Turner and Zach Weinberg have both watched family members suffer from cancer. So when they left Google in June, they started brainstorming ways to help find a cure. Turner and Weinberg aren’t doctors, but they’re engineers with deep pockets. When they were 24, they sold their startup, Invite Media, to Google for $81 million. After their June brainstorming session, the two began meeting with dozens of oncologists every week to learn from them and see where the treatment process could be improved. They founded Flatiron Health, rounded up a small team of six, and have a pilot going with some big hospital systems. Gil Shklarskiis is VP of Technology and they’re currently hiring engineers.