Q-CTRL · 3 weeks ago
Senior Quantum Software Engineer, (Back-end)
Los Angeles
Full-time
Hybrid
Senior Level
$135K/yr - $213K/yr
5+ years expQ-CTRL is a global leader in quantum technology, focused on solving complex problems and improving hardware performance. The Senior Back-end Engineer will build scalable software systems that support quantum technology, collaborating closely with engineers and researchers to translate cutting-edge research into production-ready solutions.
Artificial Intelligence (AI)GPSInformation ServicesInformation TechnologyNavigationQuantum ComputingSoftwareSoftware Engineering
Responsibilities
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
Champion quality: Implement and enforce best practices for code quality, security, and operational excellence
Solve tough problems: Troubleshoot, optimize, and enhance system performance and reliability at scale
Shape reusable architectures: Develop product features that promote flexibility, reuse, and scalability across multiple business cases
Contribute broadly: Take on other responsibilities aligned with your skills and experience and grow into new ones with support and training
Qualification
Required
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
Excellent communication and teamwork skills across agile, cross-functional groups
Experience designing and implementing efficient algorithms, statistical models, or large-scale data pipelines
Preferred
Hands-on experience with modern APIs (gRPC, GraphQL, REST)
Exposure to cloud platforms (AWS, GCP, Azure) and infrastructure management
Knowledge of database optimization, distributed systems, or microservices
Familiarity with Python web frameworks like Django, Flask, or FastAPI
Experience building frameworks or tools for complex computational systems (e.g., calibration, signal processing, or scientific computing)
Understanding of data modeling for scalable and efficient processing
Curiosity or knowledge of quantum physics/quantum computing
A background in start-up or scale-up environments where speed and agility are key
Skills in data visualization using Plotly, Dash, or Jupyter
Benefits
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!
Company
Q-CTRL
Q-CTRL is using AI-powered quantum infrastructure software to accelerate pathways to useful quantum computers and quantum sensors.
51-200 employees
H1B Sponsorship
Q-CTRL has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (4)
2023 (4)
2020 (1)
Funding
Current Stage
Growth StageTotal Funding
$133.03MKey Investors
Small Business Research InitiativeMorpheus VenturesSalesforce Ventures
2024-10-08Series B· $59M
2024-02-05Grant· $1.25M
2023-07-25Series B· $2M
Leadership Team
Michael Biercuk
CEO & Founder
Aravind Ratnam
Chief Strategy Officer
Recent News
2025-10-31
2025-09-20
Company data provided by crunchbase