Test Engineer

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Nudge is looking for a Test Engineer to join onsite in San Francisco, CA, to design and run hardware-in-the-loop and instrumentation-heavy tests for an ultrasound-based, non-invasive brain stimulation and imaging device. You will shape test strategy at the system level, translate risk into high-signal experiments before clinical use, execute and analyze tests, and grow a library of validation tests as the system evolves. Ideal candidates have 4+ years of industry experience, a mechanical electrical or mechatronics background or equivalent hands-on work, strong systems thinking, comfort with scrappy experiments, autonomy with cross-functional collaboration, a track record of building custom test setups from scratch, and high integrity. To apply, highlight measurable results, specific test rigs or automation, and your approach to risk reduction and learning quickly.

About Nudge

At Nudge, our mission is to develop the best technology for interfacing with the brain to improve people's lives. We're starting with an approach that we believe can help the most people the fastest, and also allow us to learn as much about the brain as possible: developing a non-invasive, ultrasound-based device that can stimulate and image the brain at high resolution and depth. This is a vertically integrated effort building cutting-edge hardware, software, and research capabilities to create products that can benefit millions — and eventually billions — of people.

We’ve brought together a team of the best, who believe hard things are worth doing. To succeed, we need to assemble world-class teams across everything we do. We hire people who are exceptional at their craft, do the real work, and execute relentlessly — people who expect the highest levels of both rigor and integrity from each other.

About the role

As a Test Engineer at Nudge, you will:

• Design and build test systems to evaluate device performance, safety, and reliability with mechanical, electrical, acoustic, fabrication, and software components.

• Identify what matters most to test at a system level and translate risk into high-signal experiments before clinical use.

• Execute tests, analyze results, and feed clear learnings back into device and system design.

• Own and grow a library of validation and characterization tests as the system evolves.

About you

We are looking for Test Engineers with at least 4 years of industry experience. Regardless of your career level, you should have:

• Experience building and running hardware-in-the-loop or instrumentation-heavy tests (acoustic, mechanical, electrical, or mixed-domain)

• A degree in an engineering discipline (mechanical, electrical, mechatronics, engineering physics, or similar) or equivalent hands-on experience

• Strong systems-level thinking of the entire device rather than isolated components

• Comfort designing scrappy, fast experiments focused on learning and risk reduction rather than polish

• Proven ability to work autonomously while collaborating closely with interdisciplinary engineering teams

• A track record of building custom test setups from scratch when no standard test exists

• High integrity