Senior Test Engineer – Time & Frequency (Atomic Clock)

Infleqtion; Louisville (CO); On-site; USD 106,000 - 141,000; Full time

Benefits offered by this job

100% company-paid medical, dental, and

Vision

Unlimited PTO

401(k) match

Company-paid Life and AD&D Insurance

Flexible Savings Account

Paid FMLA, Maternity/Paternity Leave

Employee Assistance Program

Student Loan Repayment

Job summary

Infleqtion is seeking a Senior Test Engineer to support the atomic clock product pilot line. You will join the New Product Introduction Team and collaborate with hardware, software, and R&D to develop test plans and automate pilot line testing.

Role requires hands-on test automation, scripting, hardware validation, and embedded-system testing in Linux, plus designing test benches and leading End of Line validation with cross-functional teams from prototype to production.

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering, or a related field.
• 5+ years of relevant industry experience with hardware validation and system integration testing.
• Strong programming skills in Python and other scripting languages.
• Familiar with at least one compiled language (C/C++/Rust).
• Hands-on experience with optical and electronic test equipment, including oscilloscopes, DMMs, OSAs, and VNAs.
• Strong understanding of communication protocols (USB, I2C, SPI, serial).
• Ability to analyze test data to drive design decisions.
• Experience with Linux environments and command-line tools.
• Collaborate with cross-functional teams from prototype to production.
• Experience with Git and modern software development workflows.
• Strong analytical and debugging embedded systems.

Responsibilities

• 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, in collaboration with firmware, software, and hardware design teams.
• 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 a range of electrical and optical lab test equipment.
• Process and visualize test data, leveraging scripting and analysis tools to extract meaningful insights.
• Work within Git-based software development workflows to track, version, and collaborate on test software.

Skills

Python

Scripting

Embedded systems

Linux

C/C++/Rust

Test automation

Git

Oscilloscopes

DMMs

OSAs/VNAs

USB I2C SPI

Education

Bachelor’s degree in Electrical Engineering, Computer Engineering, or related field

Tools

Git

Oscilloscopes

DMMs

OSAs

VNAs

Job description

Infleqtion is seeking a Senior Test Engineer to support the atomic clock product pilot line. You will join the New Product Introduction Team and collaborate with hardware, software, and R&D to develop test plans and automate pilot line testing.

Role requires hands-on test automation, scripting, hardware validation, and embedded-system testing in Linux, plus designing test benches and leading End of Line validation with cross-functional teams from prototype to production.