Senior Analog & Optoelectronics Systems Engineer

Job Title:
Senior Analog & Optoelectronics Systems Engineer
Location: Santa Clara, CA
Primarily onsite with occasional remote flexibility

Role Summary:

Picarro is hiring a Senior Analog & Optoelectronics Systems Engineer in the Bay Area.
Join us in building cutting-edge spectroscopy systems that demand precision analog design, robust signal integrity, and seamless optoelectronic integration. In this role, you will take full ownership of analog front-end development, drive PCB architecture decisions, and lead system-level bring-up efforts-all in close collaboration with our firmware and optics teams.

Key Responsibilities:
*Design, simulate, and validate analog/mixed-signal circuits (TIAs, laser drivers, ADC/DAC interfaces) for spectroscopy and sensing applications.
*Lead schematic capture and PCB layout, applying best practices in SI/PI, impedance control, filtering, and low-noise design.
*Integrate analog subsystems with FPGAs, embedded systems, and optical/mechanical modules.
*Develop bench setups and perform debug using oscilloscopes, VNAs, spectrum analyzers, and other tools; automate testing with Python/MATLAB.
*Drive root-cause analysis and design iterations to enhance performance, robustness, and manufacturability.
*Mentor junior engineers and contribute to internal best practices in analog and optoelectronic systems development.

Qualifications:
*BS/MS in Electrical Engineering, Applied Physics, or related field; PhD is a plus.
*7+ years of experience in analog/mixed-signal design with proven impact in instrumentation or sensing systems.
*Expertise in ADC/DAC integration, high-speed TIAs, laser drivers, low-jitter clocking, and precision analog front-ends.
*Proficiency with simulation and modeling tools (SPICE, ADS, HFSS) and hands-on lab instrumentation.
*Strong understanding of embedded-electronic-optical system integration and debug.

Preferred Experience:
*Background in optical spectroscopy or high-performance sensing instruments.
*Familiarity with FPGA or digital firmware interfaces.
*Experience managing thermal/power stability in analog precision systems.

The salary range for this role is $170K to $180K annually. Our total compensation packages includes base salary, bonus eligibility, and equity.

About Picarro:

Picarro, Inc. is the world's leading producer of greenhouse gas and optical stable isotope instruments, which are used in a wide variety of scientific and industrial applications, including: atmospheric science, air quality, greenhouse gas measurements, gas leak detection, food safety, hydrology, ecology and more. The company's products are all designed and manufactured at Picarro's Santa Clara, California headquarters and exported to countries worldwide. Picarro's products are based on dozens of patents related to cavity ring-down spectroscopy (CRDS) technology. Picarro's solutions are unparalleled in their precision, ease of use, portability, and reliability.

Honors awarded the Company include the World Economic Forum Technology Innovation Pioneer, IHS CERA Energy Innovation Pioneer, the U.S. Department of Energy Small Business of the Year, the TiE50 Winner and the Red Herring Global 100 Winner.

Key investors include Benchmark Capital Partners, Greylock Management Corporation, Duff, Ackerman & Goodrich, Stanford University, Focus Ventures, Mingxin China Growth Ltd., NTT Finance and Weston Presidio Capital.