Principal Scientist: Quantum Transducers

About QpiAIQpiAI is a world leader in Intelligence modelling, intelligence computing through its Quantum technology. QpiAI has built one of the world's most powerful quantum computers and is building the world's largest Quantum data centres in QpiAI Quantum Supremacy Centre (QpiAI QSC) in a 10-acre campus in Bangalore.

Job DescriptionIn this role of Principal Scientist for Quantum transducers based on optomechanical systems, you will directly report to the CEO and lead research and development of microwave-to-optics transducer technology for optical signal delivery systems for high fidelity qubit control. This is a founding-team-level technical role.

You will set the direction for one of the most consequential open problems in quantum hardware, recruit and mentor a team of scientists and engineers, and work directly with our quantum hardware, cryogenics, and photonics teams to bring lab demonstrations to system-level performance.

What you will doDefine and drive the transducer R&D roadmap - device architecture, target specs, and milestone planningDesign and characterize electro-optomechanical and electro-optical transducer devices; lead cavity QED and optomechanics experimentsDevelop microwave photon to optical photon conversion protocols optimised for low added noise and high conversion efficiencyIntegrate transducer modules with dilution refrigerator setups and superconducting qubit control stacksCollaborate with the hardware teams on optical signal delivery - waveguides, fibres, free-space coupling - to minimise loss in the full signal chainPublish, patent, and represent the company at leading quantum hardware conferencesHire, mentor, and technically lead a team of 3-8 PhD scientists and engineers

What we are looking forPhD in physics, applied physics, electrical engineering, or closely related fieldDeep expertise in at least one transducer modality: electro-optomechanics, piezo-optomechanics, electro-optic (e.g. LN), or magnon-based approachesHands-on experience with dilution refrigerators and cryogenic microwave engineeringProficiency in quantum optics and microwave circuit QED - theory and experimentTrack record of device design, nanofabrication, and low-noise measurement at the quantum levelExperience integrating photonic components (fibre coupling, free-space optics, on-chip waveguides)Demonstrated ability to lead multi-disciplinary research programsStrong publication record in top-tier journals is plusExecutive presence with good problem-solving and communication skillsShould be a good team player