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Salary: USD 160,000 - 185,000 / annual
Infleqtion is a global quantum technology company developing quantum computers, sensors, and networks to solve complex problems. We are seeking a Senior Test Engineer to support the development and validation of prototype quantum RF (QRF) systems and subsystems as they scale toward production.
In this role, you will work across hardware, software, and R&D teams to develop and execute comprehensive test plans, set up and interface with specialized test equipment, and automate pilot line test processes. You will take ownership of test strategy and execution for atomic clock systems and subsystems, leading end-of-line test plan definition in collaboration with firmware, software, and hardware design teams.
Key responsibilities include:
- Develop, maintain, and execute test strategies and test plans for atomic clock systems and subsystems
- Lead end-of-line test plan definition for new products and features
- Design and deploy optical and electrical test benches for system integration
- Perform compliance, robustness, and reliability testing on electronic and optical subsystems
- Support board bring-up and debugging efforts, providing feedback to design teams
- Develop and maintain an automated test platform using Python
- Operate and interface with electrical and optical lab test equipment (oscilloscopes, DMMs, OSAs, VNAs)
- Process and visualize test data using scripting and analysis tools
- Work within Git-based software development workflows
You will need a Bachelor's degree in Electrical Engineering, Computer Engineering, or related field, plus 4+ years of relevant industry experience focused on hardware validation and system integration testing. Strong programming skills in Python and familiarity with compiled languages (C/C++/Rust) are essential. Hands-on experience with optical and electronic test equipment, communication protocols (USB, I2C, SPI, serial), and Linux environments is required. You should be comfortable with root cause analysis, debugging embedded systems, and collaborating across cross-functional teams.
Preferred qualifications include an advanced degree, 6+ years of hardware test experience, firmware integration expertise, environmental reliability testing knowledge, regulatory compliance familiarity, and prior experience with atomic, optical, or quantum technologies. Travel to support remote test integration may be required.
