Job Specifications
Position Summary
This Quantum Software Engineer role will join the Compiler Team within Infleqtion's Quantum Software organization. This role will be responsible for designing, building, and maintaining quantum compilation software alongside considerable involvement in co-design efforts that span the full quantum stack, including applications, algorithms, hardware and control. This role combines hands-on coding, code review, and system design with R&D. Ideal candidates have a strong software development background and familiarity with quantum computation.
This role is open to both entry-level and senior-level candidates.
Job Responsibilities
The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned.
Conduct R&D toward cutting-edge advances in quantum technology with a focus on quantum compilation, similar to work described in https://arxiv.org/abs/2309.05157 and https://arxiv.org/abs/2509.13247
Deploy software optimizations to our cloud platform Superstaq using industry-grade software engineering procedures including documentation, linting, testing, and type-checking
Interface with customers of Superstaq to understand their needs and support them in a timely fashion
Contribute to development of government and commercial proposals and execution on global programs
Collaborate with experimental physicists and software engineers to bridge the gap between theoretical concepts and practical implementation
Engage with the broader scientific community by publishing research findings in scientific journals and presenting at conferences
Stay up to date with the latest developments in quantum computer architecture, quantum compilation and related fields
Provide guidance and support to other team members, fostering a collaborative research environment
Requirements
Bachelor's degree in computer science, engineering, physics or a directly related field
High proficiency in programming, with fluency in Python preferable. Proficiency in alternative languages (e.g. C/C++ or Julia) with the ability to rapidly upskill in Python
Experience with open-source quantum software frameworks such as Cirq or Qiskit; Ideal candidates will have experience not only using these libraries but also modifying them
Demonstrated ability to work and communicate with all levels of an organization; Professional-level communication skills, including verbal, written, and presentation skills
Demonstrated ability to work comfortably in a highly collaborative, cross-functional, team-oriented, and matrixed environment
Desire and demonstrated ability to thrive and produce results in a fluid, dynamic, and fast-paced environment
Demonstrated ability to learn new and complex topics quickly
Resourceful problem-solver who collaboratively identifies effective paths forward with demonstrated expertise in executing productization efforts
Passion for solving complex problems and challenges in a highly technical and scientific environment
Ability to be in the office any three days per week
Ability to travel domestically and (potentially) internationally up to 10%
Preferred Qualifications
PhD in quantum computation, physics, computer science, or a directly related field
Familiarity with concepts in quantum computing such as error correction / fault tolerance, native gate decomposition, qubit mapping and routing, and variational quantum algorithms
Experience with advanced open-source quantum software frameworks such as Stim
Familiarity with best practices of professional software engineering such as coverage, integration tests, type checking, unit tests, and version control
Experience with backend development with tools such as FastAPI for web frameworks and PostgreSQL/SQLAlchemy for databases
Experience with cloud development, especially on GCP and AWS
Familiarity with CI/CD, automated actions, issue tracking, version control, and other features on GitHub
Familiarity with security core best-practices such as access control, encryption at rest, key rotation, and logging
Exposure to or interest in front-end / GUI development, e.g., HTML/CSS, React, PyQt.
Benefits
Benefits
Salary range: 120,000 to 150,000 USD/year
100% company-paid medical, dental, vision, short/long-term disability
Employer-funded Health Savings Account
Unlimited PTO
401(k) match
Company-paid Life and AD&D Insurance
Flexible Savings Account
Paid FMLA, Maternity/Paternity Leave
Employee Assistance Program
Student Loan Repayment
Equity Program
About the Company
Infleqtion, with offices in the United States, United Kingdom, and Australia, delivers high-value quantum information precisely where needed. By operating at the Edge, our software-configured, quantum-enabled products deliver unmatched levels of precision and power, generating streams of high-value information for commercial organizations, the United States, and allied governments. With 17 years of ColdQuanta's pioneering quantum research as our foundation, our hardware products and AI-powered solutions address critical mark...
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