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Software Engineer, Quantum Control (Fire Opal)
Q-CTRL
Software Engineering
Los Angeles, CA, USA
USD 100k-170k / year + Equity
Posted on May 7, 2025
About us
Founded in 2017, Q-CTRL has grown to become the global leader in quantum. We’re using control to solve the hardest problems facing quantum technology, improving hardware performance and accelerating pathways to useful quantum computers and other technologies. As a product-led company, we bring together diverse teams such as product, design, engineering and research to help achieve our mission of making quantum technology useful. Join us to help shape the quantum future.
As one of the fastest growing companies in the quantum sector, we’ve had a number of key milestones:
- In November 2023, we announced an industry-first partnership with IBM Quantum Services, natively integrating our performance management software with all IBM quantum computers. Building off of this relationship, in September 2024 we started offering two services via IBM’s new Qiskit Functions Catalog as an inaugural partner.
- Designed and moved our Global HQ offices and lab space into the first purpose-built (and award winning) commercial and research facility for a quantum technology company in Australia.
- Continued to deliver real world outcomes across the quantum sectors, with our work with Australian Defence on software-ruggedized quantum sensing for navigation without GPS, as featured in the New York Times.
- In October 2024, we announced our record breaking expansion of our Series B funding round to USD $113M, with $59M USD of new capital.
- Grew our global presence to include Los Angeles, Berlin, and Oxford - as well as the recently announced office in San Francisco.
From educating the workforce on how quantum computing works, to building the next generation of quantum sensors, to delivering massive performance gains for end-users, it all starts with hiring the right talent. If you want to help us build the Quantum future, read on.
About the role
As a Software Engineer, you’ll 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-CTRL’s error suppression products.
- Assist in integrating Fire Opal with external customer’s 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.
- Other duties within the Employee's skills and experience, or with reasonable training.
Ideally you'll have:
- A Bachelor’s or master’s degree in computer science, physics, or related STEM field.
- 2+ 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 general-purpose 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 graduate degree in computer science, experimental physics, mathematics, or a related area.
- Experience in experimental physics or the design and integration of superconducting quantum devices.
- Experience collaborating in a fast-paced research and development environment.
Salary
The base salary for this position is targeted between $100K - $170K and will ultimately be determined by specific job-related 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 of the targeted range. For more information on benefits at Q-CTRL, please visit our careers page at https://q-ctrl.com/careers.
Should you have any questions related to the compensation package, please speak directly with the Talent Acquisition representative.
Why Q-CTRL?
Flexibility: We embrace workplace flexibility so you worry more about your impact vs a rigid work schedule.
Attractive salary: You’ll get to have the start-up impact without the start-up wages.
Equity: We want people to have a sense of ownership in what they do and offer the potential for equity share and annual bonuses.
Cash bonus: We recognize exceptional performance and impact by offering annual discretionary cash bonuses.
Resources: We are well funded by the world’s best technology investors, letting us chase our ambitions with minimal constraints.
Parental support: We offer paid parental leave to support you and your loved ones.
Diversity: We’re an equal opportunity employer and actively support initiatives like the ‘Global Women in Quantum’ program to help expand the quantum workforce.
Unique culture: You’ll be surrounded by some of the world’s leading physicists, engineers, product, marketing and design people (to name a few!) with a strong desire to learn and transfer knowledge.
Meaningful values: You’ll work with an incredibly supportive team who work consistently to deliver our core values to be real, be trusted, be just and to be revered.
Personal development: We provide you with a personal development and wellness budget.
Make a dent: Last but not least you’ll have the unique opportunity to help set the direction for this revolutionary technology and truly make an impact that matters!
Q-CTRL aims to bring together cross-functional teams from many different backgrounds to help achieve our goals - we strongly encourage you to apply even if you do not meet all of the requirements mentioned in the job posting.
Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
Please be advised that our communications will only come from the @q-ctrl.com domain. All our active job postings are available on our company website.
To recruitment agencies, we do not accept unsolicited branded profiles and are not responsible for any fees related to unsolicited resumes.