IonQ

Senior Quantum Physicist

IonQ • $126K — $181K *
Enterprise Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • PhD in physics or related discipline with a focus on atomic or qubit-related physics.
  • Proven expertise in experimental AMO physics or quantum computing, preferably with trapped ions.
  • Strong collaborative skills for independent and team-based work in a fast-paced environment.
  • Experience in spectroscopy, simulation of multi-level systems, or gate fidelity benchmarking.
  • Proficiency in programming and data analysis, with a track record of scientific communication.

Responsibilities

  • Prototype and characterize control and cooling schemes for trapped-ion qubits.
  • Calibrate and benchmark quantum systems to achieve ultra-low gate errors.
  • Validate emerging trap technologies for large-scale quantum architectures.
  • Analyze experimental data and debug hardware/software interactions.
  • Present research findings at conferences and collaborate with external partners.

Benefits

  • Comprehensive medical, dental, and vision plans.
  • Matching 401(k) contributions.
  • Unlimited PTO and paid holidays.
  • Parental/adoption leave.
  • Legal insurance and home technology stipend.
Full Job Description
Location: This role is based at our Boulder, CO with the option to work a few days a week remotely.
Travel: Up to 5%Job ID: 1777

The Role:

We are pioneering advancements in quantum computing by utilizing trapped ion technology and our proprietary laser-free quantum control methods. Our research and development efforts build on our fully integrated quantum processors that can be fabricated within standard silicon foundries. This unique approach allows us to leverage the highest-performing qubit technology while ensuring scalability and manufacturability using existing semiconductor fabrication technology. We approach quantum computing with a focus on minimizing errors, striving to achieve ultra-low gate errors at scale. Our immediate objective is to develop functional quantum computers within the NISQ regime, aiming to construct fault-tolerant machines that require minimal QEC overhead. Our recent breakthroughs include achieving 99.97% fidelity in two-qubit gates and 99.9992% fidelity in single-qubit operations without error correction, setting new industry standards for performance.

Responsibilities:

As a Quantum Physicist, you will be at the forefront of our research efforts, working hands-on with our current hardware while helping to shape future generations of quantum processors. Your work will span designing, debugging, and executing experiments, developing novel control schemes, and pushing the boundaries of system performance.

You will:
  • Prototype and characterize coherent control and cooling schemes for trapped-ion qubits using laser and microwave fields.
  • Calibrate and benchmark quantum systems, focusing on achieving ultra-low gate errors and optimizing performance across device modules.
  • Validate emerging trap technologies, including integrated electronics and photonics for large-scale architectures.
  • Analyze experimental data, debug complex hardware/software interactions, and ensure reliability of qubit operations.
  • Present results internally and externally, representing Oxford Ionics at conferences and in collaborations.

Requirements:

You will need a PhD in physics or a related discipline, with a strong foundation in atomic or qubit-related physics. While prior postdoctoral or industry experience is valuable, this role is also open to candidates moving directly from a PhD. A solid background in quantum control, with hands-on experience in calibration, benchmarking, or coherent control of qubits, will be key to success. Practical skills in control software, hardware integration, or experimental data analysis are also important.

You will need:
  • Proven expertise in experimental AMO physics or quantum computing. Experience with trapped ions is preferred.
  • Strong collaborative skills, with the ability to work independently and as part of a fast-moving team
  • Prior experience in one or more of the following: spectroscopy or simulation of multi-level systems, characterization of control hardware, gate fidelity benchmarking or running algorithms on hardware
  • Strong proficiency in programming and data analysis.
  • A track record of scientific communication through publications, talks and conferences.


The total compensation package includes base, bonus, equity, and a range of benefit options found on our career site.

If this role has a commission structure, the compensation range below just reflects the base compensation range.

Wage Transparency:

$126,887-$181,949 USD

Compensation will vary based on individual factors such as education, qualifications, and experience of the final candidate(s), specific office location, and calibration against relevant market data and internal team equity. Posted base salary figures are subject to change as new market data becomes available. Our benefits include comprehensive medical, dental, and vision plans, matching 401(k), unlimited PTO and paid holidays, parental/adoption leave, legal insurance, and a home technology stipend. Details of participation in these benefit plans will be provided when a candidate receives an offer of employment.

At IonQ, we believe in fair treatment, access, opportunity, and advancement for all while striving to identify and eliminate barriers. We empower employees to thrive by fostering a culture of autonomy, productivity, and respect. We are dedicated to creating an environment where individuals can feel welcomed, respected, supported, and valued.

If you are interested in being a part of our team and mission, we encourage you to apply!

About IonQ

IonQ is a quantum computing company that is developing a general-purpose, full-stack quantum computer based on trapped ion technology. The company was founded in 2015 by Chris Monroe and Jungsang Kim. IonQ's quantum computer is designed to be scalable, error-corrected, and fault-tolerant, and is expected to be able to solve problems that are intractable for classical computers. The company has partnerships with Microsoft, Amazon Web Services, and others. IonQ has raised over $225 million in funding to date.
Learn more about IonQ
Size
100 employees
Market Cap
$633 million
Industry
Founded
2016
NASDAQ

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