Cryo-CMOS Application Engineering Lead

The role

You will lead the validation and characterisation of analogue and mixed-signal ASICs for trapped-ion quantum processors. This includes test planning, platform development, first-silicon bring-up, debug, and system integration.

What you will do

• Own the silicon validation strategy, plans, acceptance criteria and readiness reviews.
• Present the silicon acceptance report to the Cryo-CMOS IC Lead and programme stakeholders.
• Lead first-silicon bring-up and characterisation of various components across supply, temperature, and operating modes.
• Develop validation boards, fixtures and reusable Python automation, instrument drivers and regression suites.
• Plan and lead cryogenic measurements including bare-die probing.
• Drive failures to root cause by separating silicon defects from board, firmware and test artefacts.
• Influence testability before tape-out and coordinate validation with external partners.
• Lead technical reviews, mentor engineers and document methods.

Required qualifications

• Substantial experience in analogue or mixed-signal silicon validation and characterisation.
• Ownership of multiple silicon bring-up programmes.
• Degree in electrical or electronic engineering, or equivalent practical experience.
• Hands-on laboratory skills.
• Strong electronics fundamentals and experience validating precision signal chains, data converters or power-management circuits.
• Practical expertise with oscilloscopes, precision sources and meters, signal generators, spectrum and logic analysers.
• Strong Python programming for instrument control, automated testing and statistical analysis.
• Disciplined use of Git or equivalent version control.
• Experience designing and debugging test PCBs and reviewing layouts.
• Experience working with interfaces such as SPI, I2C, JTAG and custom shift-register chains.
• Experience with embedded firmware or FPGA-based platforms.
• Record of resolving complex chip, board and software interactions.

Nice to have

• Cryogenic or other extreme-temperature testing
• Wafer or bare-die probing
• Early-stage IP or test-chip evaluation
• FPGA development and C/C++
• Circuit simulation
• Production test correlation
• Prior quantum computing

Benefits

• Competitive salary with IonQ stock options
• Annual performance bonus
• Generous annual leave
• Flexible hybrid working
• Private medical and dental insurance for you and your family
• Comprehensive medical, dental, and vision plans
• Matching 401(k)
• Unlimited PTO
• Paid holidays
• Parental/adoption leave
• Legal insurance
• Home technology stipend

Before you apply

• Employment is contingent on verifying U.S. Person status for export controls and government contracts work, or obtaining necessary licenses.

About the company

IonQ, Inc. is a leading quantum platform and merchant supplier delivering integrated quantum solutions across computing, networking, sensing, and security. Headquartered in College Park, Maryland, the company has global operations.