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Senior Software Engineer (Backend) - Cloud Platform

Ionq

Bothell, Washington, United States (Bothell, Washington) Hybrid permanent

Posted: February 12, 2026

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Quick Summary

We are looking for a Senior Software Engineer with expertise in quantum computing and a strong background in programming languages such as C++ and Python. The ideal candidate will have experience with cloud-based platforms and a passion for quantum computing. The successful candidate will be responsible for designing and developing software applications that utilize IonQ's quantum computer.

Job Description

IonQ is developing the world's most powerful full-stack quantum computer based on trapped-ion technology. We are pushing past the limits of classical physics and current supercomputing technology to unlock a new era of computing. Quantum computing has the potential to impact every area of human society for the better. IonQ’s computers will soon redefine industries like medicine, materials science, finance, artificial intelligence, machine learning, cryptography, and more. IonQ is at the forefront of this technological revolution.

We don’t just build the world’s best quantum computers–we want them to be usable by everyone, everywhere. We are looking for a Senior Software Engineer to join a cross-functional team building the IonQ Cloud Platform, which connects our customers to our quantum computers via APIs, tools, and partner clouds like AWS, GCP, and Azure. You’ll help build key components of the platform in collaboration with our product team, applications team, systems team, and scientists to build the best quantum developer experience for our customers and partners.

Responsibilities:

• Reporting to Sr Manager of Cloud Engineering, as a Senior Software Engineer you will work closely with Infrastructure Engineering, Application Development and Operations teams to provide highly available and fault tolerant cloud services

• In collaboration with the Product team and other engineers, design, build, validate, and deploy APIs and capabilities to make quantum computing accessible and useful to novices and experts alike

• Build, extend and maintain our cloud platform

• Participate in on-call rotations

You’d be a good fit with:

• Bachelor's degree in Computer Science, Engineering or a related field, or equivalent training, fellowship, or work experience

• 5+ years professional experience in software engineering, working in a team environment

• Strong experience with large-scale cloud service platforms, and the design of scalable and robust services in the real world

• Multiple programming languages like Go, JavaScript or Python is essential

• Experience in building APIs, libraries and DX (Developer Experience)

• Experience working in a cloud native environment (AWS/GCP/Azure, K8s/serverless)

• Strong written and oral communication, excellent collaboration and interpersonal skills

You’d be a great fit with:

• 7+ years of professional software experience

• 3+ years working with kubernetes

• 3+ years working with SQL databases

• OAuth, OpenID, SAML based authentication experience

• Prior experience developing on Google Cloud Platform

Location: This role will work onsite or hybrid from our office located in Bothell, WA.
Travel: Less than 10%
Job ID: 1344

The approximate base salary range for this position is $151,756 - $198,688.

Compensation will vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. Posted base salary figures are subject to change as new market data becomes available. Beyond base salary, total compensation includes a variable bonus and equity component and a range of benefit options found on our career site at ionq.co/jobs. Details of participation in these benefit plans will be provided when a candidate receives an offer of employment. Our US benefits include comprehensive medical, dental, and vision plans, matching 401K, unlimited PTO and paid holidays, parental/adoption leave, legal insurance, a home internet stipend, and pet insurance!

IonQ's HQ is located in College Park, Maryland, just outside of Washington DC. We are actively building out our recently opened manufacturing and production facility in Bothell, WA (near Seattle). Depending on the position, you may be required to be near one of our offices in College Park, Seattle, Toronto, Canada, and Basel, Switzerland. However, IonQ will expand into additional domestic and international geographies, so don’t let this stop you from applying!

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.

We are committed to equity and justice. We welcome different voices and viewpoints and do not discriminate on the basis of race, religion, ancestry, physical and/or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, transgender status, age, sexual orientation, military or veteran status, or any other basis protected by law. We are proud to be an Equal Employment Opportunity employer.

US Technical Jobs. The position you are applying for will require access to technology that is subject to U.S. export control and government contract restrictions. Employment with IonQ is contingent on either verifying “U.S. Person” (e.g., U.S. citizen, U.S. national, U.S. permanent resident, or lawfully admitted into the U.S. as a refugee or granted asylum) status for export controls and government contracts work, obtaining any necessary license, and/or confirming the availability of a license exception under U.S. export controls. Please note that in the absence of confirming you are a U.S. Person for export control and government contracts work purposes, IonQ may choose not to apply for a license or decline to use a license exception (if available) for you to access export-controlled technology that may require authorization, and similarly, you may not qualify for government contracts work that requires U.S. Persons, and IonQ may decline to proceed with your application on those bases alone. Accordingly, we will have some additional questions regarding your immigration status that will be used for export control and compliance purposes, and the answers will be reviewed by compliance personnel to ensure compliance with federal law.

US Non-Technical Jobs. Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Accordingly, we will have some additional questions regarding your immigration status that will be used for export control and compliance purposes, and the answers will be reviewed by compliance personnel to ensure compliance with federal law.

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

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