Q-CTRL

Senior Software Engineer, Back-end (Boulder Opal)

Q-CTRL$135K — $210K *
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of backend engineering experience with Python, Rust, C++, or similar.
  • Proven ability to collaborate with research and engineering teams to tackle complex technical problems.
  • Strong problem-solving abilities and a proactive, ownership-driven mindset.
  • Experience in designing and implementing efficient algorithms, statistical models, or large-scale data pipelines.

Responsibilities

  • Design, develop, and optimize scalable backend applications in Python for real-world quantum technology.
  • Create efficient service-to-service communication using modern protocols.
  • Collaborate with researchers to convert cutting-edge research code into production-ready solutions.
  • Work with product, frontend, and infrastructure teams to integrate features across Q-CTRL's products.
  • Develop product features that offer flexibility, reuse, and scalability for multiple business cases.

Benefits

  • Comprehensive benefits package including health, dental, and vision insurance.
  • Opportunities for annual discretionary bonuses and equity participation.
  • Access to ongoing professional development and training programs.
  • Flexible working arrangements to promote work-life balance.
Full Job Description
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 a quantum computing software company that provides solutions to improve the performance and reliability of quantum computers. They use advanced control engineering techniques to reduce errors and improve the stability of quantum systems. Q-CTRL has a team of experts in various fields including physics, engineering, and computer science. They have worked with clients in various industries including finance, aerospace, and defense. Q-CTRL is based in Sydney, Australia.
Learn more about Q-CTRL
Size
20 employees
Industry
Founded
2017

Similar Jobs

More Jobs at Q-CTRL

More Enterprise Technology Jobs

Find similar Senior Software Engineer, Back-end (Boulder Opal) jobs: