> Markdown version of [/jobs/ext/585867-sr-software-engineer](https://www.wearedevelopers.com/jobs/ext/585867-sr-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Software Engineer - **Company:** COLDQUANTA, INC. DBA Infleqtion - **Location:** Madison, WI, United States - **Experience:** Expert - **Salary:** $106,000.0 - $145,000.0 - **Contract:** Permanent contract - **Skills:** Databases, Image Analysis, Extract Transform Load (ETL), Software Debugging, Linux, Fault Tolerance, Python (Programming Language), Machine Learning, NumPy, Object Detection, Quantum Computing, SciPy, Software Engineering, Software Systems, SQL Databases, Pytorch, Backend, Information Technology, Software Version Control, Docker - **Published:** June 22, 2026 - **Apply:** https://www.juju.com/job/00000000ga96kk ## About the Role Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward., We are seeking a Senior Software Engineer to join the team building the control system software for Infleqtion's quantum computers. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications. You will play a crucial role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum machines., + Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience + Experience with Python and at least one compiled language, with a desire to learn and work in Rust + 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, revision control, error-handling, readability, documentation, general code health, etc. + Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: + 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 CI/CD pipelines, and Python package creation with C or Rust extensions ## Description 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 of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. + Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers. + 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 services. + Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality. ## Related Videos - [Python Data Visualization @ Deepnote (w/ PyViz overview)](https://www.wearedevelopers.com/videos/113-python-data-visualization-deepnote-w-pyviz-overview) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Vectorize all the things! 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