Shane Caldwell Email and Phone Number

Leading the team responsible for all the company's internal software.* Championed and delivered a multi-year, business-critical software rewrite in spec and on schedule.* Fostered a thriving internal developer ecosystem: 60 contributors across 6 teams, 5.5 merges/day, fully automated deployment of 25 libraries, services, and applications.* Led product management to delight users of 5 major applications supporting QPU design, fabrication, calibration, and deployment.* Managed and mentored a team of 8 software and research engineers of Senior and Staff level.

Responsible for architecture of all software systems supporting theory, design, fabrication, characterization, and calibration for deployment, of our quantum test devices and QPUs.* Provided product vision, roadmap, requirements, and product management.* Re-architected business-critical calibration software and made seminal code contributions.* Aligned usage of quantum-native instruction languages between internal and external users.* Planned and reviewed work of Internal Software team (Senior and Staff Software Engineers).* Built a collaboration of about 30 contributors to a multi-faceted yet cohesive project.

Charter manager of the Quantum Test Engineering team at Rigetti.* Defined the new function of Quantum Test Engineering.* Hired and managed first two engineers in this role.* Led studies of leading sources of error in our calibration procedures and device performance.* Served as point of contact and primary collaborator for the company's Internal Software team.

Lead experimental physicist on new quantum hardware technologies from design and theory, through manufacturing, delivering to production. Major projects:* Our 19-qubit QPU, deployed at end of 2017. Managed project and system integration, supervised testing.* Our state-of-the-art, 3D-integrated QPU prototype in 2018. Defined experimental roadmap, test protocols, and specifications. Led testing and reporting of results.* Performance-critical reduction in crosstalk. Contributed to the successful design and implementation, led testing, and delivered result 10x better than target and 6 months early on a 12-month timeline.* Formed and led a task force that produced a >10x precision improvement to our predictive device metrology.

Founding experimental physicist at the Rigetti Computing laboratory. Helped build from an empty room to a high throughput quantum test facility, and brought several key technologies to production readiness at Rigetti.* Installed and maintained the company's first three dilution refrigerators and electronics testbeds.* Contributed to the company's first generation of QPU calibration software.* Characterized early device prototypes.

2011-present:PhD thesis project: Beta-delayed Neutron Studies using an Ion Trap* Managed a cutting-edge nuclear physics experiment, based on a revolutionary measurement technique, to successful completion under deadline.* Installed and calibrated a complex array of radiation detectors and programmable electronics.* Wrote data-acquisition software (C and CAMAC); acquired and managed a 2-TB dataset.* Optimized the next generation of experiment using ion-beam simulation and 3D modeling.* Built and maintained a suite of dozens of scalable analysis programs (C++ and ROOT).* Wrote scripts (Windows, Bash, and Python) to automate workflow.* Designed a mathematical model of the experiment and validated it with a detailed Monte Carlo simulation.For 10 delayed-neutron precursor isotopes:* Measured delayed-neutron branching ratios with 10% relative accuracy.* Measured delayed-neutron energy spectra with 15% energy resolution.2009-2011:Improving Nuclear Mass Measurements, and Liquid Nitrogen Pump* Invented a liquid nitrogen (LN2) pump costing ~20x less than existing designs.* Designed, built, and installed a cryogenic ion trap to allow LN2 cooling (3x performance improvement).* Built finite-element simulations of electromagnetic fields in 3 types of ion traps.* Optimized measurement performance using ion-beam simulations and 3D modeling (2x improvement in accuracy).2005-2009:High-Accuracy Nuclear Mass Measurements* Built and commissioned a laser-ablation ion source allowing any stable isotope to be measured.* Implemented state-of-the-art experimental techniques (3x improvement in accuracy).* Composed interface for model choice, parameter control, visualization, and result logging.* Performed exhaustive study of systematic effects influencing measurement.* Measured 4 nuclear mass-differences of interest. These remain the most accurate measurements ever made in my lab.

* Prepared and supervised labs.* Gave supplementary lectures.* Presented my research in class.* Graded lab reports.