Infleqtion

Quantum Software Engineer - Compiler & Control Systems

Infleqtion
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15 days ago
Chicago, IL, USAEntry Level / Senior

Base Salary

$145k - $170k/yr

Responsibilities

  • Conduct R&D in quantum compilation, execution, and fault-tolerant quantum computing.
  • Design and implement software interfaces and intermediate representations translating quantum circuits into executable control-system programs.
  • Connect quantum error-correction circuits with decoding and execution systems, including measurement, syndrome, decoder, and Pauli-frame data.
  • Collaborate with hardware, control, experimental, and software teams on stable interfaces and practical implementations.
  • Build tooling to validate, simulate, test, and debug circuit-to-control translations and execution results.
  • Deploy software optimizations to the Superstaq cloud platform using documentation, linting, testing, type checking, and code review.
  • Contribute to government and commercial proposals and global program execution.
  • Publish research findings, present at conferences, and provide guidance to team members.

Requirements

  • Bachelor’s degree in computer science, engineering, physics, or a directly related field.
  • High programming proficiency, preferably with Python, or proficiency in C++, Rust, or another systems-oriented language with the ability to learn Python quickly.
  • Experience designing, building, or maintaining complex software systems such as compilers, intermediate representations, runtimes, simulators, distributed systems, embedded/control software, or performance-critical scientific software.
  • Ability to reason about software interfaces, data models, APIs, and abstraction, performance, and maintainability tradeoffs.
  • Experience with software testing and debugging, including unit tests, integration tests, type checking, version control, and CI/CD practices.
  • Strong communication, collaboration, problem-solving, and ability to learn complex technical topics quickly.
  • Preferred experience includes compiler infrastructure, scheduling, instruction selection, program analysis, code generation, real-time or hardware-control software, quantum error correction, decoders, stabilizer simulation, or fault tolerance.
  • Preferred experience includes Cirq, Qiskit, Stim, high-performance computing, GPU-accelerated or distributed systems, FastAPI, PostgreSQL, SQLAlchemy, GCP, AWS, security practices, HTML/CSS, React, or PyQt.
  • Ability to work in the office three days per week and travel domestically and potentially internationally up to 10%.

Benefits

  • Salary range of $145,000 to $170,000 per year.
  • 100% company-paid medical, dental, vision, and short- and long-term disability coverage.
  • Employer-funded Health Savings Account, Flexible Savings Account, and 401(k) match.
  • Unlimited paid time off, paid FMLA, maternity/paternity leave, and an Employee Assistance Program.
  • Company-paid life and AD&D insurance and student loan repayment.
  • Equity package.
  • Hybrid workplace requiring three office days per week; travel may be up to 10%.
Infleqtion

About Infleqtion

201-500 employees
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