Nanoelectronics & Device-Physics Engineer

About the role

Astera is a private foundation dedicated to accelerating scientific and technological progress by supporting high-velocity, startup-style research projects. We are looking for a technical expert to lead the development of a nanoscale actuator, managing everything from initial design to final electrical characterization. You will own the complete lifecycle of a cutting-edge electromechanical device, translating high-level scientific goals into a working physical prototype. This position requires deep analytical thinking and hands-on fabrication skill to solve complex problems at the intersection of materials, electronics, and physics. You will be responsible for ensuring that theoretical device concepts are transformed into reliable, measurable hardware that meets stringent performance targets. The role demands ownership of both the design rules and the experimental validation, requiring you to iterate quickly on structural and electronic components. You will work at the forefront of nanoscale engineering, where precision, creativity, and rigorous testing are essential for success.

Key facts

What you'll do

• Develop the electrostatic drive stack, including patterned electrodes, high-k dielectrics, and compliant polymers, to achieve 10 nm displacement and 100 pN force at low voltages.
• Create a FET-based sensor for electrical position readout, including the low-noise circuitry required for nanometer-scale closed-loop control.
• Manage the end-to-end device stack fabrication, including electron-beam lithography, through cleanroom partnerships.
• Perform benchtop characterization to test voltage-displacement response, hysteresis, and reversibility.
• Validate force and displacement metrics using single-molecule AFM and ensure the measurement toolchain is accurate.
• Collaborate with molecular design and controls teams to integrate the device.
• Design and implement diagnostic experiments to isolate failure modes and improve yield.
• Establish measurement protocols that minimize noise and drift in nanoscale force and displacement readings.
• Optimize fabrication parameters to enhance uniformity across chips and reduce process variability.
• Translate experimental results into design rules that guide future iterations of the actuator.

Requirements

• PhD or MS in applied physics, electrical engineering, materials science, or a related discipline.
• Deep understanding of semiconductor device physics.
• Proven experience with thin-film stacks, high-k dielectrics, and low-noise electrical measurement.
• Background in charge sensing, specifically with FETs or biosensors.
• Practical experience with cleanroom processes and electron-beam lithography.
• Ability to perform nanoscale electromechanical characterization at the bench.
• Demonstrated capacity to work independently and manage complex technical tasks with minimal supervision.
• Strong quantitative skills and attention to detail in data collection and analysis.

Nice to have

• Prior experience with Atomic Force Microscopy (AFM).

Practical notes

• This role is based at our Emeryville headquarters.
• Occasional travel is expected for project collaboration and fabrication work.
• We value individuals who prioritize rapid iteration, high-quality output, and the use of AI tools to increase research velocity.

The Nanoelectronics & Device-Physics Engineer will operate at the intersection of device physics and practical engineering, ensuring that each component of the actuator functions as intended under real-world conditions. You will be responsible for diagnosing discrepancies between simulation and measurement, requiring a methodical approach to data analysis. The position involves close coordination with fabrication partners to refine processes and achieve the required performance metrics. You will contribute to the documentation of methods and results, supporting both internal decision-making and external collaboration. Success in this role depends on your ability to manage multiple technical variables simultaneously while maintaining a clear focus on project objectives. The work environment is fast-paced, demanding adaptability and a strong commitment to quality. You will have the opportunity to shape the experimental direction of the project by proposing improvements to the device architecture and test procedures. The ideal candidate is comfortable working with high levels of uncertainty and is motivated by the challenge of solving difficult technical problems. This role offers the chance to build a portfolio of advanced nanoscale devices with direct relevance to future scientific instrumentation.