Senior Embedded Software Engineer (QSS)

Infleqtion; Louisville (KY); On-site; USD 140,000 - 175,000; Full time

Benefits offered by this job

100% company-paid medical, dental, vision

Unlimited PTO

401(k) match

Employee Assistance Program

Equity Program

Job summary

A global quantum technology company is seeking a Senior Embedded Software Engineer to support the development of a quantum sensor system for space. The role involves developing control system code, automated tests, and working closely with engineers to debug custom PCBs. Candidates should have a relevant degree and 5+ years of experience in hardware validation, with skills in C/C++, Python, and test equipment. The salary range is competitive, along with comprehensive benefits including unlimited PTO.

Qualifications

• 5+ years of relevant industry experience focused on hardware validation and system integration testing.
• Strong understanding of communication protocols (USB, I2C, SPI).
• Experience with firmware integration and debugging embedded systems.

Responsibilities

• Collaborate with firmware, software, and hardware design teams to capture requirements.
• Develop control system code and automated tests.
• Support board bring-up and debugging efforts.

Skills

C/C++/Rust proficiency

Python programming

Hands-on with test equipment

Problem-solving skills

Education

Bachelor’s or master’s degree in electrical engineering or related field

Tools

Oscilloscopes

Digital Multimeters (DMMs)

Optical Spectrum Analyzers (OSAs)

Vector Network Analyzers (VNAs)

Git

Job description

Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms.

Position Summary

We are seeking a Senior Embedded Software Engineer to support the development and validation of a quantum sensor system for space. This individual will join the Emerging Tech Team and work closely with physicists and hardware engineers to develop control system code, automated tests, and CI/CD pipelines. Additionally, this individual will be directly involved with custom PCB test and bring-up, working in the lab to debug and bring up PCBs and systems.

Job Responsibilities

The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time with or without notice.

• Deploy high test coverage and fully leverage our CI pipelines and hardware test beds to have confidence that your designs will work as designed
• Key contributor towards developing control system architectures for future quantum sensors
• Collaborate with firmware, software, and hardware design teams to capture requirements
• Design and deploy electrical test benches for system integration
• Perform compliance, robustness, and reliability testing on electronic 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

Education and Experience

• Bachelor’s or master’s degree in electrical engineering, Embedded Systems Engineering, Computer Engineering, or a related field
• 5+ years of relevant industry experience with a focus on hardware validation and system integration testing
• Highly proficient with at least one compiled language (C/C++/Rust). Rust is preferred, but expertise with C/C++ and an interest in Rust is acceptable
• Strong programming skills in Python and other scripting languages
• Hands-on experience with optical and electronic test equipment, including oscilloscopes, DMMs, OSAs, and VNAs
• Strong understanding of communication protocols (USB, I2C, SPI, serial comms, etc.)
• Ability to process, analyze, and visualize test data to drive design decisions and improvements
• Comfortable working in Linux environments with command-line tools for scripting and automation
• Collaborate with a cross-functional team to support product development from prototype to production
• Experience with Git and modern software development workflows
• Strong analytical and problem-solving skills, with experience in root cause analysis and debugging embedded systems

Preferred Qualifications

• Master’s degree in electrical engineering, Computer Engineering, Physics, or a related field
• 5+ years of experience in hardware test and validation
• Experience with firmware integration, embedded system validation, and debugging
• Experience with environmental reliability testing and compliance validation
• Knowledge of regulatory compliance standards relevant to test and validation processes
• Prior experience working with atomic, optical, or quantum technologies
• Ability to travel to support remote test integration and commissioning as required

We Highly Value

• Great verbal and written communication skills to effectively share information with technical and non-technical staff
• Strong engagement and collaboration skills with constant drive for success, ownership, and pride in your work
• Sense of urgency and responsibility and a true passion for attention to detail where it matters
• Open communication style and extremely positive attitude which shows through consistent daily habits
• Demonstrated problem solving skills and fast learning rate
• Capability of working with both a high degree of autonomy (taking high level goal as an input to discover and execute an optimal plan, gathering required resources to achieve the goal) and collaboratively (soliciting and incorporating input from colleagues as necessary)
• Salary range: $140,000 to $175,000
• 100% company-paid medical, dental, vision, short/long-term disability
• Employer-funded Health Savings Account
• Unlimited PTO
• 401(k) match
• Company-paid Life and AD&D Insurance
• Flexible Spending Account
• Paid FMLA, Maternity/Paternity Leave
• Employee Assistance Program
• Student Loan Repayment
• Equity Program