Senior Software Engineer, (Compiler)

Job Description

Job Title: Senior Software Engineer (Compiler). Location: Los Angeles, California, USA

This role connects high-level quantum programming with real execution on quantum processing units. You will work closely with researchers, quantum engineers, and product teams to deliver reliable and production-ready quantum software.

Responsibilities:

• Design, develop, and optimize scalable backend services using Python
• Maintain and evolve the compiler stack for OpenQASM3 and OpenPulse programs
• Translate high-level quantum programs into low-level controller instructions
• Collaborate with researchers and quantum engineers to support experimental needs
• Debug and validate compiler output using real quantum hardware;
• Improve performance and reliability of backend systems
• Build efficient service-to-service communication using modern APIs and protocols
• Help define software tools, standards, and design patterns for future quantum control systems

Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field
• At least 5 years of backend software development experience
• Strong experience with Python;
• Experience with quantum hardware control systems or pulse-level programming
• Familiarity with OpenQASM3, Qiskit Pulse, or similar technologies
• Experience using Python web frameworks such as Django, Flask, or FastAPI

Preferred:

• Knowledge of compiler theory or formal language design
• Experience with compiler ecosystems such as LLVM or MLIR
• Experience building Python extensions using C++ or Rust
• Exposure to FPGA programming or real-time systems
• Interest in systems-level and performance-critical software

Benefits and Compensation:

• Base salary range: 135,000 USD to 210,000 USD per year
• Salary based on experience, skills, level, and location
• Eligibility for annual bonuses
• Equity compensation opportunities;
• Competitive benefits package
• Flexible work environment focused on outcomes rather than hours

Additional Information:

• Q-CTRL is an equal opportunity employer
• Applicants with arrest or conviction records will be considered in line with California and Los Angeles fair chance laws
• Hiring decisions are made by humans, though AI tools may assist in parts of the recruitment process;
• Official communications only come from the @q-ctrl.com domain
• Unsolicited resumes from recruitment agencies are not accepted