Infleqtion is seeking a Senior Research Software Engineer to architect and develop software across the full quantum control stack, enabling high-performance operation of both quantum computers and sensors. This role spans low-level hardware integration, real-time control systems, waveform generation, calibration automation, experiment orchestration, and scalable data pipelines. You will work at the boundary between physics and production software, partnering with physicists and hardware engineers to translate experimental requirements into robust, extensible control infrastructure.
What You'll Do
- Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our quantum hardware.
- Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions.
- Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices.
- Mentor and guide junior engineers, fostering their growth and enhancing the team's technical expertise.
- Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration.
- Support and debug all layers of the control stack from real-time embedded kernels to distributed and cloud-based services.
- Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality.
What We're Looking For
- Bachelor's degree in Engineering, Applied Mathematics, Physics or a related field.
- Minimum of 5 years prior work experience in a scientific domain.
- Experience with Python and at least one compiled language.
- Experience with Linux and virtualization technologies like Docker.
- Good verbal and written communication skills, able to effectively share information with technical and non-technical staff.
- Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance.
- Skilled in typical software engineering disciplines: testing, debugging, version control, error-handling, readability, documentation, and general code health.
- Desire to constantly improve and learn inside and outside of expertise.
Nice to Have
- Domain-specific experience in statistics, machine learning, or AMO physics.
- Experience with Numpy, Scipy, and Pytorch.
- Experience with image analysis, emphasis on realtime object detection.
- Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes.
- Experience creating and maintaining CI/CD pipelines, and Python package creation with C or Rust extensions.
- Experience developing basic GUIs and/or web front-end applications.
Technical Stack
- Python
- Rust
- Linux
- Docker
- Numpy
- Scipy
- Pytorch
Benefits & Compensation
- Competitive salary
- Incentive Stock Option Plan
- Generous company 10% pension contribution regardless of employee contribution
- Unlimited PTO
- BUPA healthcare after probation period
- Cycle to work and Technology scheme
Work Mode
This is a hybrid role based out of our Kidlington and Harwell offices.
We are proud to be an Equal Employment Opportunity Employer.
