Irfan Siddiqi is a faculty scientist at Lawrence Berkeley National Laboratory (LBNL) and a Professor of Physics at the University of California, Berkeley. He is the director of the Quantum Systems Accelerator a US Department of Energy funded national quantum center led by LBNL, and the Advanced Quantum Testbed at LBNL that focuses on state-of-the-art superconducting quantum computing technologies. Siddiqi is known for seminal contributions to the field of superconducting quantum devices, including dispersive single-shot readout of superconducting quantum bits, quantum feedback, observation of single quantum trajectories, and near-quantum-limited microwave frequency amplification. He is a fellow of the American Physical Society (APS) and a recipient of its George E. Valley prize (2006). He received his Ph.D. in Applied Physics from Yale University.