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Quantum Software Engineer Jobs in California (NOW HIRING)

Q-CTRL

Senior Compiler Engineer

San Francisco, CA · On-site

$135K - $210K/yr

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 ...

IONQ

Senior Flight Software Engineer

San Francisco, CA · On-site +1

$144K - $190K/yr

IonQ's newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting ... As a Flight Software Engineer, you will write the software that runs our satellite fleet in orbit ...

Quantum Space

Ground Software Engineer II

Hawthorne, CA · On-site

$98K - $135K/yr

Quantum Space is developing high-performance spacecraft designed for agility, autonomy, and mission longevity in cislunar space. They are seeking a highly skilled Ground Software Engineer II to lead ...

Monarch Quantum

Software Engineer 3

San Diego, CA

$125K - $175K/yr

Join our fast-paced and passionate team as a Senior Software Engineer. As we scale, you will be ... other Friday off) Monarch Quantum is proud to be an equal opportunity employer and does not ...

Monarch Quantum

Software Engineer 3

San Diego, CA · On-site

$125K - $175K/yr

Join our fast-paced and passionate team as a Senior Software Engineer. As we scale, you will be ... other Friday off) Monarch Quantum is proud to be an equal opportunity employer and does not ...

Monarch Quantum

Software Engineer 3

San Diego, CA · On-site

$125K - $175K/yr

Join our fast-paced and passionate team as a Senior Software Engineer. As we scale, you will be ... other Friday off) Monarch Quantum is proud to be an equal opportunity employer and does not ...

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All JobsQuantum Software Engineer JobsQuantum Software Engineer Jobs in California

Quantum Software Engineer information

See California salary details

$62.7K

$145.6K

$202.8K

How much do quantum software engineer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for quantum software engineer in California is $145,592.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,400.00 and $170,700.00 per year, depending on experience, location, and employer.

What is a quantum software engineer?

A Quantum Software Engineer develops algorithms, software, and applications for quantum computers. They work with quantum programming languages like Qiskit, Cirq, or PennyLane to implement quantum algorithms that solve complex problems more efficiently than classical computers. Their role involves understanding quantum mechanics, optimizing quantum circuits, and collaborating with researchers to bridge the gap between theory and practical implementation.

What does a quantum software engineer do?

Quantum Software Engineers usually spend their days designing, coding, and testing quantum algorithms, often using specialized quantum software libraries and simulators. They collaborate closely with quantum physicists, classical software engineers, and researchers to translate theoretical concepts into efficient, practical solutions. Regular tasks also include debugging code, optimizing performance on quantum and hybrid systems, and staying updated with the latest advances in quantum hardware and software. Effective teamwork and ongoing learning are central to success in this dynamic, research-driven environment.

What are the key skills and qualifications needed to thrive as a quantum software engineer?

To thrive as a Quantum Software Engineer, you need a deep understanding of quantum computing principles, proficiency in classical programming languages (such as Python or C++), and experience with quantum SDKs (like Qiskit or Cirq), often supported by a degree in computer science, physics, or a related field. Familiarity with simulators, cloud-based quantum platforms, and sometimes certifications in quantum programming are also highly valuable. Strong problem-solving abilities, collaboration skills, and adaptability help set excellent candidates apart. These skills and qualities are vital for building practical quantum applications and advancing technology in a rapidly evolving interdisciplinary field.

How much does a quantum software engineer make?

Quantum software engineers typically earn between $100,000 and $150,000 annually, with experienced professionals and those working at leading tech companies earning higher salaries. Compensation can vary based on experience, education, location, and proficiency with quantum programming languages like Qiskit or Cirq.

What are the most commonly searched types of Quantum Software Engineer jobs in California?

The most popular types of Quantum Software Engineer jobs in California are:

What are popular job titles related to Quantum Software Engineer jobs in California?

For Quantum Software Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Quantum Software Engineer jobs in California look for?

The top searched job categories for Quantum Software Engineer jobs in California are:

What cities in California are hiring for Quantum Software Engineer jobs?

Cities in California with the most Quantum Software Engineer job openings:

Quantum Software Engineer jobs near you
Infographic showing various Quantum Software Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $145,592 per year, or $70 per hour.

Senior Software Engineer, Back-end (Boulder Opal)

Q-CTRL

Los Angeles, CA • On-site

$135K - $210K/yr

Full-time

Re-posted 6 days ago

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-CTRL’s world-leading 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.
What you'll be doing:
  • Build impactful systems: Design, develop, and optimize scalable backend applications in Python that power real-world quantum technology.
  • Engineer for performance: Create high-efficiency service-to-service communication using modern protocols.
  • Bridge science and engineering: Work hand-in-hand with researchers to translate cutting-edge research code into production-ready solutions, while sharing engineering best practices.
  • Deliver end-to-end solutions: Partner with product, frontend, and infrastructure teams to ship integrated features used across Q-CTRL’s products.
  • Shape reusable architectures: Develop product features that promote flexibility, reuse, and scalability across multiple business cases.
  • Other duties within the Employee's skills and experience, or with reasonable training.
Ideally you'll have:
  • 5+ years of backend engineering experience with Python, Rust, C++, or similar.
  • A track record of collaborating across research and engineering to solve hard technical challenges.
  • Strong problem-solving skills and a proactive, ownership-driven mindset.
  • Experience designing and implementing efficient algorithms, statistical models, or large-scale data pipelines.
Bonus points (not essential, but exciting if you bring them!):
  • Hands-on experience with modern APIs (gRPC, GraphQL, REST).
  • Exposure to cloud platforms (AWS, GCP, Azure) and infrastructure management.
  • Familiarity with Python web frameworks like Django, Flask, or FastAPI.
  • Proficiency with CI/CD pipelines (GitHub Actions, CircleCI) and container orchestration tools like Kubernetes.
  • Hands-on experience in observability tools (Prometheus, Grafana, Tempo, AWS CloudWatch) for monitoring metrics, traces, and logs.
  • Exposure in data orchestration and warehousing (e.g., Airflow, Snowflake, dbt, or comparable platforms)
Salary
The targeted base salary range for this position is between $135,000 - $210,000 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 base salary 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.

About Q-CTRL
Q-CTRL is the global leader in AI-powered 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 real-world impact.
 
Founded in 2017, we operate globally with offices in Sydney, Los Angeles, San Francisco, Berlin, and Oxford. Our teams bring together technical and multi-disciplinary expertise across the product lifecycle, and we’re hiring talent to help scale every part of the business. We work quickly to turn cutting-edge 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 field-validated quantum navigation solution for defense and industry.
 
At Q-CTRL, we prioritize outcomes over hours. We offer flexibility, equity potential, and competitive benefits that reflect our high-performance culture. If you’re ready to help shape the future of quantum, we’d love to hear from you!
 
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.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.