Dr. Marissa Giustina is a senior research scientist and quantum electronics engineer who joined Google’s quantum effort in 2016. She studied engineering at Dartmouth College, with a focus on electrical and materials engineering, before pivoting toward foundational research and pursuing a PhD in experimental quantum physics at the University of Vienna, advised by Anton Zeilinger. Her thesis focuses on systems she designed and built for conscientiously testing Bell's inequality using entangled optical photons. Hybridizing a love for quantum fundamentals with a passion for engineering and building efficient systems, Giustina wears many hats within the Google Quantum AI lab: these include leading device packaging and developing tools and hardware across the system stack to scale up Google's quantum processors while enabling excellent performance. She is also a highly-sought speaker for both technical and lay audiences.