Senior Software Engineer, Quantum Control (Fire Opal) (San Francisco) Job at Q-CTRL, San Francisco, CA

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  • Q-CTRL
  • San Francisco, CA

Job Description

About the team

At Q-CTRL, Quantum Computing Engineering is a global team of software engineers and infrastructure experts, combining deep technical expertise with a startup mindset to deliver real impact through software innovation. Our work is underpinned by robust standards, and by embracing the three virtues. Our team excels in areas across back-end, front-end, machine learning, and platform engineering.

We transform Q-CTRLs worldleading technological breakthroughs into commercial software products with applications across defense, research, and industry. We work closely with Product, Design, and Research teams to accelerate the path to quantum advantage worldwide.

About the role

As a Software Engineer, youll be responsible for developing software solutions for quantum technologies and deploying them in the Q-CTRL product suite.

What you'll be doing:

  • Development work in the application code base for Q-CTRLs error suppression products.
  • Assist in integrating Fire Opal with external customers systems.
  • Implementing novel control and error mitigation techniques developed in collaboration with research scientists for improving quantum circuit performance.
  • Mentoring other developers and autonomously addressing high priority work.
  • Review and address code and comments submitted by the team via pull requests.
  • Build robust tooling for monitoring, benchmarking, and experimentation.
  • Collaborating crossfunctionally with members of Q-CTRLs technical staff.
  • Other duties within the employee's skills and experience, or with reasonable training.

Ideally you'll have:

  • A Bachelors or masters degree in computer science, physics, or related STEM field.
  • 4+ years of experience as an individual contributor in a professional software role, or equivalent experience.
  • 4+ years of programming experience with Python, Rust, C++, or other generalpurpose languages.
  • A background in quantum computing, software design, high performance computing, or the related.

It would be fantastic if you have these skills/backgrounds but not essential:

  • A Ph.D. in computer science, experimental physics, mathematics, or a related area.
  • Experience in experimental physics or the design and integration of superconducting quantum devices.
  • Experience in designing and implementing software to abstract and standardize interactions with heterogeneous hardware interfaces.

Salary

The base salary for this position is targeted between $150,000 - $200,000 and will ultimately be determined by specific jobrelated skills, experience, level, location and other contributing factors. Depending on the position offered, this role may be eligible for annual discretionary bonuses, equity and other forms of compensation outside the targeted range. For more information on benefits at QCTRL, please visit our careers page at

Should you have any questions related to the compensation package, please speak directly with the Talent Acquisition representative.

About QCTRL

QCTRL is the global leader in AIpowered quantum control infrastructure software. We build the tools that make quantum technology useful, solving the hardest challenges in quantum computing and quantum sensing to deliver realworld impact.

Founded in 2017, we operate globally with offices in Sydney, Los Angeles, San Francisco, Berlin, and Oxford. Our teams bring together technical and multidisciplinary expertise across the product lifecycle, and were hiring talent to help scale every part of the business. We work quickly to turn cuttingedge science into deployable technology.

In 2024 we raised US$113 million in Series B funding, the largest aggregate investment for a quantum software company. Six months later we delivered the first commercial quantum advantage with Ironstone Opal, our fieldvalidated quantum navigation solution for defense and industry.

At QCTRL, we prioritize outcomes over hours. We offer flexibility, equity potential, and competitive benefits that reflect our highperformance culture. If youre ready to help shape the future of quantum, wed love to hear from you!

Qualified applications with arrest or conviction records will be considered for employment in accordance with the LosAngeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

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Job Tags

Full time, Worldwide,

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