Jobs in the United States

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Added 5 mins ago
DO
Senior Engineer, WR
Department of Water Resources
CA
- $11,437 to $14,315 USD / month
…facilities, our engineers are empowered to make the right choices in design, detailing, and materials to ensure public safety and longevity of the infrastructure. Our engineers are at the…
Added 5 mins ago
DO
Dams and Canals Engineer
Department of Water Resources
CA
- $6,488 to $12,152 USD / month
The Geotechnical Sciences Section (GSS) is seeking a motivated and technically strong engineer who wants to work on some of California’s most significant geotechnical and water…
Added 5 mins ago
DO
Associate Hydroelectric Power Utility Engineer
Department of Water Resources
CA
- $9,713 to $12,151 USD / month
Under direction of the Power Resources Unit's Senior Hydroelectric Plant (HEP) Utility Engineer (Supervisor), the incumbent Associate Hydroelectric Power Utility Engineer is responsible for…
Added 16 mins ago
VP of Product
Leena AI
NY · New York, NY
…set a sharp strategy, decompose it into metrics, and carry senior rooms - internally and with Fortune 500 CIOs and…
Added 16 mins ago
Senior Systems Engineer (Linux)
Eagle Seven
Chicago, IL
Eagle Seven is seeking a Senior Systems Engineerto lead the technical design, planning, and implementation of our hardware and operating system strategies. In this role, you will act as a…
Added 17 mins ago
Risk Management Engineer
Fresenius Medical Care
Knoxville, TN
…assigned business unit(s), including when and how to develop design and process FMEAs for all manufactured…
Added 18 mins ago
Consulting Network Reliability Engineer
HCA Healthcare
Nashville, TN
Do you have the career opportunities as a Consulting Network Reliability Engineer you want with your current employer? We have an exciting opportunity for you to join HCA Healthcare which…
Added 18 mins ago
Senior Fire Protection Engineer (Advanced Manufacturing)
Jacobs
Nashville, TN
We're looking for an experienced Fire Protection Engineer to join our Building Mechanical team and help deliver innovative Fire Protection design solutions for our heavy industrial clients.…
Added 19 mins ago
Senior Electrical Engineer
Constellation Energy Generation, LLC.
Fort Worth, TX
…proper configuration management and assuring that standard design criteria, practices, procedures and codes are used in preparation of plans and…
Added 24 mins ago
CO
Associate Civil Engineer (Development Services)
City of Sacramento
Sacramento, CA
- $47.05 to $66.2 USD / hour
The Associate Civil Engineer is an advanced journey-level classification filled with multiple incumbents. Incumbents are responsible for performing assignments, projects, and programs of…
Added 25 mins ago
C
Senior Full Stack Engineer - .NET & C#
Cognizant
Jefferson City, MO
- $86,000 to $99,000 USD / year
As a Senior Full Stack Engineer - .NET & C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 25 mins ago
C
Senior Java Full Stack Engineer - Spring Boot & AWS
Cognizant
Jefferson City, MO
- $86,000 to $99,000 USD / year
As a Senior Java Full Stack Engineer - Spring Boot & AWS , you will make an impact by designing and delivering scalable, secure, cloud-based applications using Java, Spring Boot, React, and…
Added 26 mins ago
I
Sr Test Engineer (Time and Frequency)
Infleqtion
Louisville, CO
- $106,000 to $141,000 USD / year
We are seeking a Senior Test Engineer to support the development and validation of an atomic clock product pilot line. This individual will join the New Product Introduction Team and work…
Added 26 mins ago
I
Quantum Software Engineer (Compiler)
Infleqtion
Remote, United States
- $145,000 to $170,000 USD / year
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…
Added 26 mins ago
I
Quantum Software Engineer - Compiler & Control Systems
Infleqtion
Remote, United States
- $145,000 to $170,000 USD / year
This Quantum Software Engineer role will join the Compiler Team within Infleqtion’s Quantum Software organization. The role will design, build, and maintain quantum compilation software,…
Added 27 mins ago
I
Staff Thermal Engineer - Space Payload Design, Analysis and Modeling
Infleqtion
Remote, United States
- $153,000 to $203,000 USD / year
Serve as a hands-on engineer with experience building both EDU and flight hardware
Added 27 mins ago
Senior Embedded Systems Engineer (Quantum Computing)
Infleqtion
Remote, United States
Architect processing chains with supporting analytical models to ensure that critical design requirements are met.
Added 27 mins ago
Senior Embedded Systems Engineer (Quantum Computing)
Infleqtion
Remote, United States
Architect processing chains with supporting analytical models to ensure that critical design requirements are met.
Added 27 mins ago
Senior Embedded Systems Engineer (Quantum Computing)
Infleqtion
Remote, United States
Architect processing chains with supporting analytical models to ensure that critical design requirements are met.
Added 27 mins ago
Senior Embedded Systems Engineer (Quantum Computing)
Infleqtion
Remote, United States
Architect processing chains with supporting analytical models to ensure that critical design requirements are met.
Added 27 mins ago
I
Senior Software Engineer (QRF)
Infleqtion
Louisville, CO
- $160,000 to $185,000 USD / year
We are seeking a Senior Software Engineer to lead the development and productization of our software systems that interface with cutting-edge quantum and embedded hardware. This role…
Added 27 mins ago
I
Senior Opto-Mechanical Engineer (Quantum Computing)
Infleqtion
Remote, United States
- $155,000 to $185,000 USD / year
Within Infleqtion’s Quantum Computing Product Group, the Hardware Engineering Team seeks a Senior Opto-Mechanical Engineer as a senior designer responsible for the realization of precision…
Added 27 mins ago
I
Senior Opto-Mechanical Engineer (Quantum Computing)
Infleqtion
Remote, United States
- $155,000 to $185,000 USD / year
Within Infleqtion’s Quantum Computing Product Group, the Hardware Engineering Team seeks a Senior Opto-Mechanical Engineer as a senior designer responsible for the realization of precision…
Added 27 mins ago
I
Senior Materials and Process Engineer
Infleqtion
Louisville, CO
- $130,000 to $170,000 USD / year
We are seeking a Senior Materials and Process Engineer to own materials and manufacturing process development for the Quantum Gravity Gradiometer (QGG) program. This hands-on role turns…
Added 32 mins ago
Senior Software Engineer, AI/ML Infrastructure, Ads Safety
Google
Pittsburgh, PA
…information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile;…

Infleqtion

Quantum Software Engineer - Compiler & Control Systems

Remote, United States

$145,000 to $170,000 USD / year

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Job details

Pay: $145,000 to $170,000 USD / year
Posting language: English
Posted: Aug 24, 2026

Original job description

Position Summary This Quantum Software Engineer role will join the Compiler Team within Infleqtion’s Quantum Software organization. The role will design, build, and maintain quantum compilation software, with particular responsibility for the interface between quantum circuits, error-correction software, and hardware control systems. The role combines hands-on software development, system design, code review, and R&D. It will contribute to co-design efforts spanning applications, algorithms, compilation, error decoding, hardware, and control. Ideal candidates have a strong software engineering background and are interested in learning the quantum-computing and hardware-control context needed for the role. 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 advances in quantum compilation, execution, and fault-tolerant quantum computing, similar to work described in https://arxiv.org/abs/2309.05157 and https://arxiv.org/abs/2509.13247.
Design and implement software interfaces and intermediate representations that translate compiled quantum circuits into executable control-system programs, including gate operations, timing, qubit movement, measurement, and other hardware functionality.
Develop software that connects quantum error-correction circuits with decoding and execution systems, including representation and processing of measurement results, syndrome data, decoder outputs, and Pauli-frame updates.
Collaborate with hardware, control, and experimental teams to define stable, well-documented interfaces between compilation software and the control system.
Build tooling to validate, simulate, test, and debug circuit-to-control translations, including timing constraints, hardware capabilities, and execution results.
Deploy software optimizations to our cloud platform Superstaq using industry-grade software engineering procedures, including documentation, linting, testing, type checking, and code review.
Contribute to development of government and commercial proposals and execution on global programs.
Collaborate with experimental physicists, control engineers, and software engineers to bridge 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 developments in compiler design, quantum computer architecture, control systems, error correction, decoding, 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 preferred. Proficiency in C++, Rust or another systems-oriented language, with the ability to rapidly upskill in Python, is also welcome.
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 clearly about software interfaces, data models, APIs, and the tradeoffs between abstraction, performance, and maintainability.
Experience with software testing and debugging, including unit tests, integration tests, type checking, version control, and CI/CD practices.
Demonstrated ability to work and communicate with all levels of an organization, including professional verbal, written, and presentation skills.
Demonstrated ability to work comfortably in a highly collaborative, cross-functional, team-oriented, and matrixed environment.
Demonstrated ability to learn new and complex topics quickly, including a willingness to develop familiarity with quantum -computing concepts through work with domain experts.
Resourceful problem-solver who collaboratively identifies effective paths forward and can execute 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

Experience with compiler infrastructure, scheduling, instruction selection, intermediate representations, program analysis, or code generation.
Experience with real-time, embedded, hardware-control, or scientific-instrumentation software; familiarity with timing-sensitive execution systems is particularly valuable.
Experience building software that integrates measurement data, feedback, calibration data, telemetry, or other hardware-generated data into an execution pipeline.
Familiarity with quantum error correction, decoders, stabilizer simulation, fault tolerance, or syndrome processing.
Familiarity with quantum computing concepts such as native gate decomposition, qubit mapping and routing, circuit scheduling, and hardware-aware compilation.
Experience with open-source quantum software frameworks such as Cirq, Qiskit, Stim, or similar tools.
Experience developing or optimizing scientific, simulation, decoding, or data-processing workloads for high-performance computing environments, including GPU-accelerated or distributed systems.
Experience with backend development using tools such as FastAPI, PostgreSQL, or SQLAlchemy.
Experience with cloud development, especially on GCP or AWS.
Familiarity with security best practices, including access control, encryption at rest, key rotation, and logging.
Exposure to or interest in front-end or GUI development, such as HTML/CSS, React, or PyQt.
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 hr@infleqtion.com.

Notice to Recruitment Agencies:

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

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More about this job

Skills

Control systems
Software development
Documentation
Research
Computer science
Python
C++
Rust
Data models
Debugging
CI/CD
Presentation skills
Scheduling
Software frameworks
Process data
Back-end development
PostgreSQL
Google Cloud
AWS
HTML
CSS
React

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