David Johns Email & Phone Number

Austin, Tx, Us

Fremont, California, Us

Leading a high performance new product development team of 8 engineers split between Austin and India providing mentorship, and task prioritizationManaging complex team design tasks through delegation, establishing a culture of trust, accountability, and leadership development of team membersFostering team collaboration through regular communication and utilization of asynchronous work management toolsMaintain motivation and morale by contributing a combination of expert technical guidance, passion for problem solving, compassionate leadership, and modelling personal regulation during times of stress.

Fremont, California, Us

Power electronics design for renewable energy storage.

Austin, Texas, Us

Responsible for hardware design improvements to correct and expand power converter performance.

Austin, Texas, Us

Led hardware development team on new product development of a grid interactive, bidirectional 480 VAC 30 kW power converter.

Pittsburgh, Pennsylvania, Us

Led an engineering department team of 11 to 13 individuals consisting of electrical and mechanical engineers, CAD designers, and technicians. Established work priorities among various projects; tracked and reported project status to senior management. Assisted design engineers with various prototype issues to maintain forward progress in product development. Developed technical proposals for new projects including cost and schedule estimates.

Pittsburgh, Pennsylvania, Us

New product R&D. Technical proposals. Project planning, management, and execution.Design and production support of custom power conversion products that meet semiconductor or medical industry compliance standards. AC to DC active power factor conversion, DC to DC converters, pulsed power. Expert in reliable, high power, high repeatability, multikilohertz pulsed resonant charger design.Design collaboration on power conversion products from 20 Watts to 75 kW; 24 Volts to 750 kV. Design collaboration on novel high repetition rate charging method for Marx banks.Developed original solutions for unique custom products: Single phase active power factor controller Pulsed power driver for a dielectric barrier discharge flash lamp. +/-25kV / +/-25 mA High voltage linear bipolar amplifier

San Diego, Ca, Us

Pulsed power engineering department liaison member of new product platform development team for three generations of laser product development: ELS-6000, ELX-7000, and XLA-100. Design and specification of mechanical, control, and power interfaces of pulsed power modules to laser system platform. Specification, technical supplier management and commissioning of outsourced HVPS and resonant charger pulsed power modules. Troubleshooting support of production and R&D pulsed power systems for four generations of KrF and ArF excimer lasers; and for R&D support of the F2 laser and dense plasma focus Z-pinch EUV research efforts.

Us

Columbia, MO manufacturing plant.Maintenance of in-house tool metrology database, calibration of production and machinists tools. Periodic dimensional tolerance verification of production go-no-go and attribute gages using manual coordinate measurement machine.Trained in GD&T. Responsible for dimensional tolerance verification and GR&R (gage repeatability and reproducibility) qualification of new production gages.

Bsee, Electrical Engineering

Electrical Engineering