# Sr Software Engineer > Infleqtion · Boulder, United States (Hybrid) · Full-time · Posted 2025-06-20 **Workplace:** hybrid **Department:** Quantum Computing ## Description **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. At **Infleqtion** we embrace a startup mentality driven by results, urgency, and customer-focused innovation: - We break down barriers between disciplines, stepping in wherever we can make the biggest impact. - We thrive in uncertainty, embracing challenges as opportunities. - We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. - We take bold, calculated risks to drive progress. 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. ### 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 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. ## Requirements - 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 ## Benefits The targeted salary range for this role is **$106,000** to **$145,000** on an annualized basis plus eligibility to participate in our annual incentive plan. _In addition to your base compensation, we offer a generous_ _**Total Rewards**_ _program which includes:_ - 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs - Employer funded Health Savings Account - Unlimited Paid Time Off - 401(k) Matching Programs - Company paid Life and AD&D Insurance - Flexible Healthcare Savings Account - Paid FMLA Leave - Paid Maternity/Paternity Leave - Employer Assistance Program - Student Loan Repayment **Equal Opportunity** Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer. ## Apply [Apply at Infleqtion](https://apply.workable.com/coldquanta/j/A0EC773735/apply) --- Powered by [Workable](https://www.workable.com)