Top 112 Algorithm quantum algorithm quantum physics quantum information Jobs

Senior Software Engineer, Back-end (Boulder Opal)
Q-CTRL —Los Angeles, CA
- $135,000 - $210,000 a year
- Full-time
- Azure
- 5 years
- System design
Senior High-Speed Photonics Engineer
PsiQuantum —Palo Alto, CA
- $150,000 - $202,000 a year
- Email
- 3 years
- Doctor of Philosophy
- Mentoring
Principal Quantum Applications Scientist - 731
Quantinuum —Broomfield, CO
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- Full-time
- Office
- Master's degree
- Doctor of Philosophy
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- Paid holidays
Principal, Electro-Optics System Engineer
PsiQuantum —Milpitas, CA
- $230,000 - $260,000 a year
- Email
- 5 years
- Doctor of Philosophy
- Organizational skills
Member of Technical Staff, Microsoft Robotics (Robotics Simulation)
Microsoft —Redmond, WA
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- Background check
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- Research
9d
Senior Photonic Technical Program Manager
PsiQuantum —Palo Alto, CA
- $160,000 - $200,000 a year
- Email
- 5 years
- Analysis skills
- Doctor of Philosophy
Cryostat Equipment Engineer
PsiQuantum —Milpitas, CA
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- Email
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- Continuous improvement
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Senior Optical Process Engineer
PsiQuantum —Milpitas, CA
- Email
- 5 years
- Analysis skills
- Senior level
Principal Characterization-Failure Analysis Engineer
PsiQuantum —Milpitas, CA
- $165,000 - $200,000 a year
- Email
- Analysis skills
- Senior level
- Electrical Engineering
Validation Engineer, Cryogenic
PsiQuantum —Milpitas, CA
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- Email
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- Scripting
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Senior Optical Packaging Process Engineer
PsiQuantum —Milpitas, CA
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- Email
- 5 years
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Senior Integration/API architect
PsiQuantum —Palo Alto, CA
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- Email
- 7 years
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- Schematics
PIC Characterization Engineer
PsiQuantum —Palo Alto, CA
- $110,000 - $175,000 a year
- Email
- 3 years
- Doctor of Philosophy
- Senior level
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Silicon Photonics Design Engineer
PsiQuantum —Palo Alto, CA
- $130,000 - $165,000 a year
- Email
- Assembly
- Analysis skills
- Continuous improvement
Firmware/FPGA Engineer II (Onsite)
Raytheon Technologies Corporate Headquarters —Cambridge, MA
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- Full-time
- System design
- Mid-level
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- Paid holidays
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Technical Lead, Single Photon Sources Validation
PsiQuantum —Milpitas, CA
- $195,000 - $225,000 a year
- Email
- 11+ years
- Mentoring
- Scripting
Senior Manager, Data Science - Quantum Computing Research (Remote-Eligible)
Capital One —McLean, VA
- Email
- Remote
- Computer Science
- Bachelor's degree
- Doctor of Philosophy
- Health insurance
Product Manager (Quantum-safe Cryptographic Inventory)
Palo Alto Networks —Santa Clara, CA
- $148,700 - $240,525 a year
- Full-time
- Computer Science
- Product management
- In-person
Photonic Design Automation Engineer
PsiQuantum —Palo Alto, CA
- $130,000 - $165,000 a year
- Email
- 6 years
- Computer Science
- Doctor of Philosophy
Senior Cryostat Equipment Engineer
PsiQuantum —Milpitas, CA
- $130,000 - $165,000 a year
- Email
- Schematics
- 3 years
- Senior level

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Senior Software Engineer, Back-end (Boulder Opal)

Q-CTRL
Los Angeles, CA

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Job Details

Full-time
$135,000 - $210,000 a year

Qualifications

Containerization systems
Performance monitoring
Software engineering
Azure
Cloud Logging
Cloud data warehouses
5 years
GitHub Actions
System design
Scalable systems
Snowflake
System design for system development
IT infrastructure
Production systems
Collaboration with product development teams
C++
IT monitoring tools
Data pipeline scheduling
Airflow
Statistical modeling
Algorithm design
Django
Scalability
Developing and maintaining backend systems
Monitoring system implementation
GraphQL APIs
Amazon CloudWatch
CircleCI
Prometheus
Grafana

Full 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.

About the role

As a Senior Back-end Engineer on the Boulder Opal Scale Up team, you’ll be at the forefront of building the software backbone that powers the future of quantum technology. You’ll work side by side with brilliant engineers and researchers, designing and delivering scalable, high-performance systems that bring groundbreaking science into the real world.

If you’re excited about building robust systems, tackling complex problems, and exploring the edge where software meets quantum physics, this is your opportunity to make a real impact in one of the most exciting fields in technology today.

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 base salary for this position is targeted 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 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.

Apply Now

Refine Your Search

algorithm quantum algorithm quantum physics quantum information jobs

Senior Software Engineer, Back-end (Boulder Opal)

Senior High-Speed Photonics Engineer

Principal Quantum Applications Scientist - 731

Principal, Electro-Optics System Engineer

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Bonus points (not essential, but exciting if you bring them!):

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