The people here at Apple don’t just build products — they build the kind of wonder that’s revolutionized entire industries. It’s the diversity of those people and their ideas that encourages the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts. Join Apple, and help us leave the world better than we found it. Are you up for the challenge? The Hardware Test Engineering team plays a key role in keeping up quality standards, and through work with the team, you’ll have the outstanding opportunity to impact products all across Apple. The team is looking for a system design engineer who is responsible for the design and deployment of systems, which carry out calibration and performance validation of optical sensors. You will be responsible for the full spectrum of the lifecycle of the test system - from prototyping to deployment at mass production. You will work closely with the Optical and Health Sensing design group to define calibration and test procedures, and design high precision instrumentation & systems to be able to perform this efficiently in a factory environment.