Q-CTRL
Software Engineer, Back end (Fire Opal)
Q-CTRL, Los Angeles, California, United States, 90079
Join to apply for the
Software Engineer, Back end (Fire Opal)
role at
Q-CTRL Join to apply for the
Software Engineer, Back end (Fire Opal)
role at
Q-CTRL This range is provided by Q-CTRL. Your actual pay will be based on your skills and experience talk with your recruiter to learn more. Base pay range
$115,000.00/yr - $170,000.00/yr About Us
Founded in 2017, Q-CTRL has grown to become the global leader in quantum. Were 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, weve 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 IBMs 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 Senior Back-end Engineer on the Fire Opal team, you will work with a team of brilliant engineers to design and develop a scalable, highly performant backend system while playing a key role collaborating across our research and solutions teams. This role is ideal for someone who is passionate about back-end engineering, curious and open to upskilling in the quantum domain, and seeking a fast-paced, innovative environment.
What you'll be doing:
Design, develop, and optimize scalable client and backend applications using Python Build high-efficiency service-to-service communication using modern protocols Closely liaise with researchers and scientists to build software compatible with their needs Collaborate with product, frontend, and infrastructure teams to deliver integrated, end-to-end solutions Implement and enforce best practices for code quality, security, and operational efficiency Troubleshoot, optimize, and enhance system performance and reliability Implement product features that promote architecture reuse across business cases Other duties within the Employees skills and experience, or with reasonable training
Ideally you'll have:
Up to 4+ years of experience in backend software development with Python, Rust, C++ or similar Proficient in designing implementing, and debugging end-to-end applications using standard monitoring stacks. Demonstrated ability to collaborate across research and engineering teams Strong fundamentals in API design, databases and data modelling Prior experience with Docker, AWS, and Kubernetes Strong problem-solving skills and proactive approach to finding solutions Excellent collaboration and communication skills across cross-functional and agile teams
It would be fantastic if you have these skills/backgrounds but not essential:
Prior experience building compute intensive backend services Knowledge of traces and how to implement them using OpenTelemetry Hands-on experience with gRPC or similar frameworks (GraphQL, RESTful) for building high-performance services Deep understanding of distributed systems and microservices architecture Experience with Python web frameworks such as Django, Flask, or FastAPI Experience in developing frameworks or tools for complex computational systems, such as hardware calibration, signal processing, or scientific computing Familiarity with quantum physics/quantum computing Previous experience working in a start-up or scale-up environment
Why Q-CTRL?
Flexibility: We embrace workplace flexibility so you worry more about your impact vs a rigid work schedule.
Attractive salary: Youll 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 worlds 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: Were an equal opportunity employer and actively support initiatives like the Global Women in Quantum program to help expand the quantum workforce.
Unique culture: Youll be surrounded by some of the worlds leading physicists, engineers, product, marketing and design people (to name a few!) with a strong desire to learn and transfer knowledge.
Meaningful values: Youll 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 youll 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.
The US base salary range for this opportunity is determined by position, level, location and experience. Individual pay will be based on specific job-related skills, experience, education and other contributing factors determined throughout the interview process. Should you have any questions related to the compensation package, please speak directly with the Talent Acquisition representative.
Please note, the salary range listed for US job postings reflect the base salary only. This does not include bonus, employee stock options or benefits. For more information on benefits at Q-CTRL, please visit our careers page at https://q-ctrl.com/careers.
Seniority level
Seniority level
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Engineering and Information Technology Industries
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Software Engineer, Back end (Fire Opal)
role at
Q-CTRL Join to apply for the
Software Engineer, Back end (Fire Opal)
role at
Q-CTRL This range is provided by Q-CTRL. Your actual pay will be based on your skills and experience talk with your recruiter to learn more. Base pay range
$115,000.00/yr - $170,000.00/yr About Us
Founded in 2017, Q-CTRL has grown to become the global leader in quantum. Were 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, weve 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 IBMs 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 Senior Back-end Engineer on the Fire Opal team, you will work with a team of brilliant engineers to design and develop a scalable, highly performant backend system while playing a key role collaborating across our research and solutions teams. This role is ideal for someone who is passionate about back-end engineering, curious and open to upskilling in the quantum domain, and seeking a fast-paced, innovative environment.
What you'll be doing:
Design, develop, and optimize scalable client and backend applications using Python Build high-efficiency service-to-service communication using modern protocols Closely liaise with researchers and scientists to build software compatible with their needs Collaborate with product, frontend, and infrastructure teams to deliver integrated, end-to-end solutions Implement and enforce best practices for code quality, security, and operational efficiency Troubleshoot, optimize, and enhance system performance and reliability Implement product features that promote architecture reuse across business cases Other duties within the Employees skills and experience, or with reasonable training
Ideally you'll have:
Up to 4+ years of experience in backend software development with Python, Rust, C++ or similar Proficient in designing implementing, and debugging end-to-end applications using standard monitoring stacks. Demonstrated ability to collaborate across research and engineering teams Strong fundamentals in API design, databases and data modelling Prior experience with Docker, AWS, and Kubernetes Strong problem-solving skills and proactive approach to finding solutions Excellent collaboration and communication skills across cross-functional and agile teams
It would be fantastic if you have these skills/backgrounds but not essential:
Prior experience building compute intensive backend services Knowledge of traces and how to implement them using OpenTelemetry Hands-on experience with gRPC or similar frameworks (GraphQL, RESTful) for building high-performance services Deep understanding of distributed systems and microservices architecture Experience with Python web frameworks such as Django, Flask, or FastAPI Experience in developing frameworks or tools for complex computational systems, such as hardware calibration, signal processing, or scientific computing Familiarity with quantum physics/quantum computing Previous experience working in a start-up or scale-up environment
Why Q-CTRL?
Flexibility: We embrace workplace flexibility so you worry more about your impact vs a rigid work schedule.
Attractive salary: Youll 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 worlds 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: Were an equal opportunity employer and actively support initiatives like the Global Women in Quantum program to help expand the quantum workforce.
Unique culture: Youll be surrounded by some of the worlds leading physicists, engineers, product, marketing and design people (to name a few!) with a strong desire to learn and transfer knowledge.
Meaningful values: Youll 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 youll 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.
The US base salary range for this opportunity is determined by position, level, location and experience. Individual pay will be based on specific job-related skills, experience, education and other contributing factors determined throughout the interview process. Should you have any questions related to the compensation package, please speak directly with the Talent Acquisition representative.
Please note, the salary range listed for US job postings reflect the base salary only. This does not include bonus, employee stock options or benefits. For more information on benefits at Q-CTRL, please visit our careers page at https://q-ctrl.com/careers.
Seniority level
Seniority level
Not Applicable Employment type
Employment type
Full-time Job function
Job function
Engineering and Information Technology Industries
Software Development Referrals increase your chances of interviewing at Q-CTRL by 2x Sign in to set job alerts for Software Engineer roles.
Don't see a job that matches your experience? Submit your resume here!
Software Engineer, Game Support, Game Studio
Los Angeles, CA $60,000.00-$270,000.00 2 weeks ago United States $170,000.00-$720,000.00 4 days ago Los Angeles, CA $141,000.00-$202,000.00 2 weeks ago Hawthorne, CA $129,300.00-$223,600.00 2 days ago Culver City, CA $99,500.00-$200,000.00 1 week ago Culver City, CA $99,500.00-$200,000.00 2 weeks ago Los Angeles, CA $120,000.00-$250,000.00 2 weeks ago Los Angeles, CA $100,000.00-$150,000.00 2 years ago Dec 2025 New Graduate Engineer, Software (Starship)
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