Quantum Software Engineer job opportunity at Infleqtion.

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Date2025-12-09T16:27:36.736Z bot
Infleqtion Quantum Software Engineer
Experience: General
Pattern: full-time
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loacation Chicago, United States Of America
loacation Chicago....United States Of America

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  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.  Our team will begin reviewing applications on January 20, 2026 and will continue until the position is filled.

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