Job Description

The Facebook Reality Labs team is looking for an Electrical Engineer specializing in power & battery management circuit design to join a multi-disciplinary team that is developing systems that are used to enable immersive augmented reality experiences. You will own electrical design of power conversion and battery charge/discharge circuitry from prototype to production stages partnering with a cross disciplinary engineering team to ensure designs realize product specifications. You should have experience selecting and designing optimized regulator topologies to maximize conversion efficiency in addition to experience developing charge/discharge circuits optimized for different battery chemistries and pack configurations.

Electrical Engineer Responsibilities

* Own power circuit design, simulation, validation, and characterization ensuring compliance with product specifications.

* Develop & validate battery charge/discharge & management circuitry that meets pack specifications across environmental conditions.

* Specify, evaluate, and select key power path components. Develop relationships with technology vendors and partners impacting roadmaps and driving custom solutions.

* Generate design documentation, perform schematic capture, simulate power delivery networks pre & post layout, and direct power subsystem board layout.

* Optimize power conversion efficiency and work across engineering disciplines to minimize power consumption and battery discharge peaks.

* Characterize system power consumption, battery runtime, and battery charge/discharge curve compliance across environmental conditions.

* Support product development throughout concept, design, evaluation, production, and post-launch phases.

* Drive resolution of technical issues working with cross-functional engineering, verification, and production teams.

* Ability to travel both domestically and internationally.

Minimum Qualifications

* 5+ years of experience developing electrical hardware systems along with a BS in Electrical or a related Engineering degree or equivalent experience.

* Experience with schematic design and PCB layout using Cadence Capture CIS and Allegro or equivalent EDA tools.

* Experience designing with DC/DC switching regulators and optimizing conversion efficiency.

* Experience with battery power management, battery charge circuits, and lithium ion batteries.

* Experience using oscilloscopes, network/power analyzers, e-loads, and other test equipment for system validation and troubleshooting.

Preferred Qualifications

* Experience with designing with multiple DC-DC power-conversion topologies such as buck, boost, linear, buck/boost & SEPIC and the benefits of different feedback control modes.

* Experience designing battery charge/discharge management circuits which meet pack requirements across environmental conditions.

* Experience with PDN simulation tools such as Sigrity or HyperLynx.

* Experience modelling and verifying system and subsystem power consumption and compliance with thermal budgets.

* Experience with thermal management and system mitigation strategies.

* Experience with multiple Lithium battery pack and cell technologies, and the effects of temperature, charge/discharge rate and cycle count.

* Experience understanding USB Power Delivery and how it applies to battery charging & discharge management.

* Experience with Linux power management capabilities and underlying SoC and system hardware dependencies.

Locations

About the Facebook company

Facebook's mission is to give people the power to build community and bring the world closer together. Through our family of apps and services, we're building a different kind of company that connects billions of people around the world, gives them ways to share what matters most to them, and helps bring people closer together. Whether we're creating new products or helping a small business expand its reach, people at Facebook are builders at heart. Our global teams are constantly iterating, solving problems, and working together to empower people around the world to build community and connect in meaningful ways. Together, we can help people build stronger communities we're just getting started.

Facebook is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at accommodations-ext@fb.com.