1,818,880open jobs
104,271companies
274,488added this week
Browse all
Salary
$145k – $170k per year
Location
In office (Chicago)
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 24, 2026. Infleqtion scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Infleqtion is an American quantum technology company that builds products based on cold atom physics, including neutral-atom quantum computers, optical atomic clocks, quantum radio frequency receivers and inertial and gravity sensors for navigation where satellite signals are unavailable. Founded in 2007 as ColdQuanta and renamed Infleqtion in 2022, it supplies research institutions, defense agencies and commercial customers and runs operations in the United States and the United Kingdom. The company is headquartered in Louisville, Colorado, United States.

Job Summary

The newly hired QEC is responsible for designing and optimizing error correcting codes (QECs) for experimental quantum computing devices, modeling and analyzing QEC schemes, and advancing the understanding of QEC.

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:

  • Identify and pursue research that advances the understanding of QEC theory, techniques, and implementation in experimental quantum computing devices
  • Develop and optimize QEC protocols tailored to experimental gate-based quantum computing devices, with a primary focus on neutral atom platforms
  • Use mathematical models and numerical simulations to analyze the behavior and performance of QEC protocols
  • Develop and implement custom QEC decoders
  • Contribute to the identification and mitigation of noise processes in quantum systems
  • Collaborate with experimental physicists and software engineers to bridge the gap between theoretical concepts and practical implementation
  • Communicate and interpret cutting-edge research in both theory and experiment with colleagues
  • 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 QEC and related field
  • Provide guidance and support to other team members, fostering a collaborative research environment

Requirements

  • PhD in theoretical physics, mathematics, computer science, or another field closely related to quantum information science
  • 2+ years of postdoctoral experience (or industry equivalent) in QEC is highly preferred
  • Experience in tailoring error-correcting codes for quantum computing devices, and bridging the gap between theory and experiment
  • Strong scientific publication record
  • Proficient in scientific computing
  • 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 travel domestically and (potentially) internationally up to 10%

Benefits

  • Salary range: $145,000 to $170,000 per 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 Package

Equal Opportunity

Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Note

This position may require access to information protected under U.S. export control laws and regulations for quantum computing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.

Contact Information

If this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at [email protected].

Notice to Recruitment Agencies:

Infleqtion does not accept unsolicited resumes from agencies. Infleqtion is not responsible for any fees related to unsolicited resumes.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,818,880 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Recommended for you based on this role

Backend
Similar stack
Same company
Chicago
$97k – $223k per year • Equity • In office • 7+ years exp • Bachelor's Degree • Nashville
Go
Java
C#
C++
Apply
$499k per year • Equity • In office • 9+ years exp • Los Gatos • New York
Python
Go
Java
AI/ML
Machine Learning
DevOps
Rest API
gRPC
Apply
$499k per year • Equity • In office • Los Gatos • Seattle • New York • Los Angeles
DevOps
Platform Engineering
Apply
$388k – $558k per year • Equity • In office • New York • Los Angeles • Los Gatos
DevOps
Platform Engineering
Analytics
A/B Testing
Apply
$388k – $558k per year • Equity • In office • New York • Los Angeles • Los Gatos
DevOps
Platform Engineering
Apply
$160k – $185k per year • In office • Full-Time • Bachelor's Degree • Boulder • Chicago • Madison
Python
Rust
SQL
C++
C++
PyTorch C++
AI/ML
SciPy
NumPy
PyTorch
Time Series Forecasting
Machine Learning
DevOps
CI/CD
Docker
Kubernetes
Linux
Analytics
ETL/ELT
Apply
$160k – $185k per year • In office • Full-Time • Louisville
Python
JavaScript
Rust
TypeScript
Python
FastAPI
Frontend
Next.js
React.js
DevOps
Rest API
CI/CD
Git
Docker
Kubernetes
Management
Jira
Apply
$145k – $170k per year • Equity • In office • Full-Time • Bachelor's Degree • Chicago
Python
MATLAB
MATLAB
Simulink
AI/ML
Machine Learning
DevOps
CI/CD
HPC
Robotics
Digital Twin
Design
SolidWorks
Apply
$145k – $170k per year • Equity • In office • Full-Time • Bachelor's Degree • Chicago • Louisville
Python
Go
JavaScript
Rust
C++
Julia
Python
Flask
SQLAlchemy
FastAPI
Django
Databases
PostgreSQL
AI/ML
CUDA Toolkit
CUDA
Machine Learning
Frontend
React.js
DevOps
gRPC
GCP
Azure
CI/CD
AWS
Docker
Kubernetes
HPC
Quantum
Qiskit
Cirq
PennyLane
Apply
$145k – $170k per year • Equity • In office • Full-Time • Bachelor's Degree • Chicago
Python
Rust
C++
Python
SQLAlchemy
FastAPI
PyQt
Databases
PostgreSQL
AI/ML
arXiv
DevOps
Rest API
GCP
CI/CD
AWS
Quantum
Qiskit
Cirq
Stim
Apply
$95k – $115k per year • In office • 5+ years exp • Bachelor's Degree • Chicago
Management
Microsoft Office
Apply
≈ $132k – $250k per year (Estimated) • In office • Bachelor's Degree • Chicago
Apply
≈ $40k – $90k per year (Estimated) • In office • Full-Time • Chicago
AI/ML
Multimodal AI
Apply
$80k – $100k per year • In office • 2+ years exp • Chicago
AI/ML
Multimodal AI
Management
Microsoft Office
Apply
$55k per year • In office • 1+ year exp • Bachelor's Degree • Chicago
Apply
See all jobs
This is one of many
1,818,880 more open roles from verified company boards, updated every day.