Jobs and Careers
Q-
Senior Software Engineer, Quantum Control (Boulder Opal)
Q-CTRLLos Angeles, United Statesfull_timeVerifiedPosted 2 Oct 2025
💰 $213,000/yr($135,000/yr – $213,000/yr)
About the role
About usFounded 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 roleWe are seeking a Senior Quantum Engineer to join our Boulder Opal team and help advance Q-CTRL’s quantum control software products. Reporting to the Engineering Manager, this role will serve as a critical bridge between Research and Engineering. You’ll bring software design and engineering expertise to our world-class quantum researchers, developing scalable solutions at the forefront of the quantum industry.
This is a unique opportunity to work on cutting-edge problems in quantum hardware calibration and automation, and to directly influence the future of quantum computing.
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 roleWe are seeking a Senior Quantum Engineer to join our Boulder Opal team and help advance Q-CTRL’s quantum control software products. Reporting to the Engineering Manager, this role will serve as a critical bridge between Research and Engineering. You’ll bring software design and engineering expertise to our world-class quantum researchers, developing scalable solutions at the forefront of the quantum industry.
This is a unique opportunity to work on cutting-edge problems in quantum hardware calibration and automation, and to directly influence the future of quantum computing.
What you'll be doing:
- Partner with researchers: Work closely with quantum physicists and experimentalists, applying strong software design skills across client and back-end development to accelerate their research and free them to focus on innovation.
- Build reusable features: Implement product capabilities that promote architecture reuse across diverse business cases.
- Own reliability: Independently troubleshoot and resolve software issues to maintain responsiveness to customer and research needs.
- Engineer at scale: Design, develop, and optimize scalable back-end architectures realized through modular services and APIs.
- Collaborate cross-functionally: Work with product, design, and infrastructure teams to deliver integrated, end-to-end solutions.
- Raise the bar: Drive improvements in code quality, security, and operational efficiency.
- Learn and adapt: Demonstrate passion for quantum technology and innovation, with the ability to quickly pick up domain knowledge even if you don’t have a physics background.
- Other duties within the Employee's skills and experience, or with reasonable training.
Ideally you'll have:
- Advanced degree (PhD or MSc preferred) in Physics, Computer Science, Engineering, or a related field.
- Strong understanding of quantum physics and quantum computing principles.
- Proficiency in programming languages such as Python.
- Demonstrated ability to collaborate across research and engineering teams.
- Experience in developing frameworks or tools for quantum-related solutions, ideally, hardware calibration.
- Proven ability to mentor junior team members and accelerate their contributions.
- Excellent collaboration and communication skills with the ability to work across cross-functional and agile teams.
It would be fantastic (but not essential) if you bring:
- Experience with quantum hardware control systems.
- Experience with Python Web Frameworks such as Django, Flask, or FastAPI.
- Previous experience working in a start-up or scale-up environment.
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