Quantum Software Engineer (Compiler)
Infleqtion · Chicago, Illinois, United States · On-site
Pay: USD 145,000 – 170,000 a year
Posted Aug 24, 2026
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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…