Quantum Software Engineer - Compiler & Control Systems
Infleqtion2 months 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%.
Tech Stack
About Infleqtion
Infleqtion builds neutral-atom quantum systems for computing, networking, and precision sensing, along with the Superstaq software platform. It sells quantum computers, optical clocks, RF receivers, and inertial sensors to government and commercial customers in sectors such as defense, space, energy, and telecommunications. Founded in 2007 and headquartered in Louisville, Colorado, Infleqtion is publicly listed on the NYSE (ticker: INFQ) and operates across the U.S., Europe, and Asia.