Staff Software Engineer - Developer Tools

IonQ is looking for a Senior Software Engineer to focus on developer tools. This role centers on building and enhancing software that supports developers working with quantum computing systems. What you will do Design, implement, and refine tools that make quantum programming more accessible Work closely with teams from different disciplines to understand developer needs Contribute to the ongoing improvement of IonQ’s developer toolset Collaboration This position involves frequent collaboration with engineers and specialists across the company to ensure the tools meet the needs of those building and using quantum computing systems. Location This role is based in Bothell, Washington, United States or Oxford, England, United Kingdom.

IonQ is at the forefront of quantum computing, developing the world's most advanced full-stack quantum computers utilizing trapped-ion technology. We are transcending the boundaries of classical physics and current supercomputing capabilities, paving the way for a revolutionary computing era. Our quantum systems have the potential to significantly transform various sectors, including healthcare, materials science, finance, artificial intelligence, machine learning, and cryptography. At IonQ, we are committed to making quantum computing accessible to everyone, everywhere.As a Staff Software Engineer on our Developer Tools team, you will spearhead the creation of our quantum software development kits (SDKs), quantum libraries, and developer tools. You will collaborate closely with product, applications, systems, and science teams to ensure an optimal developer experience for our users and partners. The Developer Tools team is responsible for building the software frameworks that bridge quantum developers to IonQ's quantum computers through SDKs (including Qiskit, Cirq, and native IonQ SDKs), as well as providing compilation, simulation, and emulation utilities, all within the broader quantum software ecosystem. Your contributions will significantly influence how researchers, developers, and organizations engage with quantum computing by providing user-friendly, powerful, and well-documented tools.

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IonQ is at the forefront of revolutionizing computing technology with its groundbreaking full-stack quantum computer, powered by trapped-ion technology. We are transcending the boundaries of classical physics and contemporary supercomputing to usher in a new epoch of computing. The potential of quantum computing extends to enhancing various sectors of society, including healthcare, materials science, finance, artificial intelligence, machine learning, cryptography, and beyond. Join us in redefining industries through our innovative quantum computing solutions.We are seeking a Senior Staff Software Engineer in Application Engineering to join our dynamic Applications Engineer team. This cross-functional team is dedicated to translating the advancements in quantum technology into practical applications that deliver real-world value.Our mission goes beyond merely constructing the world's most advanced quantum computers; we are committed to leveraging state-of-the-art quantum computing tools to address tangible challenges. Our Applications Scientists have been collaborating with customers to develop prototypes, and our newly established Applications Engineering department will be instrumental in transforming these validated use cases into production applications, making these revolutionary tools accessible to a broader audience through SaaS delivery.Your role will be pivotal in transitioning existing proof-of-concept quantum codes into robust, production-ready applications. As a hands-on team lead, you will enhance the developer experience (DevEx) by implementing best practices for research-grade code. Responsibilities will include establishing CI/CD pipelines, software packaging tools, and both pre- and post-deployment tests for new algorithms. In addition, you will be tasked with optimizing and parallelizing traditional algorithms to streamline processing workloads. This role is akin to being a forward-deployed engineer for quantum computing applications, and ideal candidates will possess a diverse range of interests and expertise.This team will collaborate closely with Developer Tools, Infrastructure, and Product teams to devise effective solutions by selecting appropriate technologies and standardizing automated processes. The ideal engineer will possess comfort in refining quantum computing tools, such as chemistry simplification, one quarter and implementing novel quantum topology solvers as services the next—while enjoying collaborative programming with scientists. You will bring your classical computing expertise to complement our quantum knowledge.

At IonQ, we're at the forefront of quantum computing innovation, developing the world's most advanced full-stack quantum computer powered by trapped-ion technology. Our mission is to transcend the limits of classical computing and reveal a new era of computational possibilities. Quantum computing is set to transform numerous sectors including healthcare, materials science, finance, artificial intelligence, and more. Join us as we lead this transformative journey.As a Senior Staff Software Engineer focusing on HPC integration, you will play a key role in creating and maintaining our software interfaces with SLURM and other open HPC stacks. Your contributions will be vital in harnessing the power of quantum computers alongside classical data centers, enhancing our capabilities to tackle the world's most complex challenges.

IonQ is at the forefront of quantum computing, striving to develop the most advanced full-stack quantum computer utilizing trapped-ion technology. Our mission is to transcend the boundaries of classical physics and existing supercomputing capabilities to usher in a revolutionary era of computing. Quantum computing holds the promise of significantly enhancing various sectors, including medicine, materials science, finance, artificial intelligence, machine learning, and cryptography. We are leading the charge in this technological evolution.As we approach the scale of quantum computing, our systems will execute certain computations faster and handle larger datasets than the largest supercomputers on the planet. However, these quantum systems will still need to seamlessly integrate with classical computing architectures for comprehensive calculations. Just as your device integrates CPUs and GPUs for effective rendering, the data centers of the future will combine CPUs, GPUs, and QPUs to tackle the world’s most challenging problems.We are seeking a Senior Software Engineering Manager to guide and expand our Runtime team, responsible for creating and maintaining our hybrid classical-quantum computing environment for clients. In this pivotal role, you will facilitate key customer capabilities, including quantum emulation, pluggable compilers, and performance efficiency, ultimately delivering our fault-tolerant quantum computing layer at scale. You will collaborate closely with our API teams and our comprehensive hybrid computation initiatives.The ideal candidate will boast experience in leading and contributing to multiple concurrent initiatives, adeptly balancing various activities while focusing on impactful priorities. You will merge technical prowess with strategic business acumen to make informed technology decisions that yield lasting effects. A commitment to simplicity, creativity, and sharp analytical judgment will be crucial. You should enjoy delving into technical subjects and working across diverse business streams, positioning yourself to help us achieve the next milestone in secure quantum computing.

IonQ is pioneering the development of the most advanced full-stack quantum computer, leveraging trapped-ion technology. We are breaking the barriers of classical physics and current supercomputing capabilities to usher in a new epoch of computing. Quantum computing holds the promise to transform various sectors of human endeavor for the better. IonQ's innovations are set to revolutionize industries such as healthcare, materials science, finance, artificial intelligence, machine learning, cryptography, and beyond. Join us as we lead this technological renaissance.We are in search of a Senior Network Orchestration Engineer to become an integral member of our collaborative team. In this pivotal role, you will serve as the chief architect of the high-level service plane, creating a seamless connection between quantum hardware and classical infrastructure.You will face the unique challenge of managing a distributed quantum networking and sensing solution, utilizing your expertise in high-scale systems to guide IonQ in its mission to construct the world’s premier quantum networks.

IonQ is at the cutting edge of quantum computing, developing the world's most advanced full-stack quantum computer powered by trapped-ion technology. We are pushing the boundaries of classical physics and supercomputing, paving the way for a transformative era in computing. Quantum computing holds the potential to revolutionize various sectors, including healthcare, materials science, finance, artificial intelligence, machine learning, and cryptography. Join us as we lead this technological revolution.At IonQ, we not only create state-of-the-art quantum computers but also offer them through cloud services, providing significant computational capabilities to our customers. We are in search of a Staff Software Engineer to spearhead our billing and payments platform integration efforts, enabling us to meter and sell our innovative products effectively. This role will involve collaborating closely with our product team and fellow engineers to enhance the quantum developer experience for our clients and partners.

IonQ is pioneering the development of the world's most powerful full-stack quantum computer utilizing trapped-ion technology. We are transcending the boundaries of classical physics and existing supercomputing capabilities to usher in a new era of computational power. Quantum computing holds the remarkable potential to positively influence numerous facets of human life. IonQ's innovations are set to transform industries such as healthcare, materials science, finance, artificial intelligence, machine learning, and cryptography. Join us at the forefront of this technological revolution.We are in search of a strategic and visionary Director of Software Engineering to spearhead the development and operational excellence of the core services offered by the IonQ Quantum Cloud platform (experience it here: https://cloud.ionq.com). This critical role is responsible for providing seamless access to our advanced quantum computers and simulators through our APIs both in the cloud and on-premises. The Director will influence the technical trajectory of the IonQ Quantum Cloud API platform, ensuring its alignment with IonQ's broader business objectives and the emerging market opportunities within the ever-evolving landscape of quantum computing.The successful candidate will possess a wealth of experience in leading or contributing to multiple concurrent initiatives, adeptly balancing diverse activities with a focus on prioritizing efforts that yield the greatest impact. You will leverage your technical acumen and business insight to make impactful technology decisions. Striving for simplicity, you will exhibit significant creativity and sharp judgment. You will thrive in learning complex technical subjects, collaborating across various business domains, and play a pivotal role in advancing secure quantum computing.

About IonQ:IonQ, Inc. (NYSE: IONQ) stands at the forefront of quantum computing, pioneering solutions to address some of humanity's most intricate challenges. Our latest quantum systems, IonQ Tempo and IonQ Forte Enterprise, empower organizations like Amazon Web Services, AstraZeneca, and NVIDIA to achieve remarkable performance improvements — up to 20x. In 2025, we set a record for quantum computing performance by achieving 99.99% two-qubit gate fidelity.With an ambitious roadmap, IonQ is set to revolutionize the tech landscape by delivering quantum computers with 2 million qubits by 2030, driving breakthroughs in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. Our advancements in quantum networking also position us as a key player in the development of the quantum internet.Location: This position is based onsite at our Bothell, WA office.Travel: Up to 10%Job ID: 1438The Role:We are seeking a Senior Infrastructure Software Engineer to take charge of the reliability, scalability, and deployment of our electronic hardware test automation platform. This essential platform is critical for executing comprehensive testing — from full-system to component-level automated electronic hardware tests across our global engineering sites and contract manufacturer locations.As the primary infrastructure authority on our internal tooling software development team, you will collaborate closely with IonQ's core Infrastructure team. Your goal will be to develop and deploy a minimal, secure, and maintainable infrastructure required for executing our test automation software on various devices, from rack-mounted servers to lightweight, single-purpose devices within our manufacturing verification processes. As a senior team member, you will work independently, lead moderately scoped projects, and serve as a subject-matter expert for the test organization.Responsibilities:Design, build, and maintain CI/CD pipelines for deploying our test automation software to a distributed fleet of testbeds.Develop and manage infrastructure for testbed provisioning, remote management, and monitoring.Contribute to testbed design and hardware selection to enhance team objectives.Implement and uphold best practices in software development and infrastructure management.

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About IonQ IonQ, Inc. stands as a leader in quantum computing, delivering integrated solutions across computing, networking, sensing, and security. The company’s IonQ Tempo platform marks a major advance in quantum technology, helping clients such as Amazon Web Services and AstraZeneca accelerate work in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025, IonQ achieved 99.99% two-qubit gate fidelity, setting a new world record in quantum computing performance. Headquartered in College Park, Maryland, IonQ operates in locations including Washington, California, Colorado, Massachusetts, Tennessee, Italy, South Korea, Sweden, and Switzerland, reflecting a broad global presence in quantum technology.

About IonQ IonQ, Inc. [NYSE: IONQ] develops quantum computing technology and supplies integrated quantum solutions for computing, networking, sensing, and security. The company’s latest system, IonQ Tempo, delivers significant advances in performance and supports clients in industries such as drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. Notable customers include Amazon Web Services and AstraZeneca. In 2025, IonQ achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance. Headquartered in College Park, Maryland, IonQ also operates in Bothell, Washington, as well as in California, Colorado, Massachusetts, Tennessee, and internationally in Italy, South Korea, Sweden, and Switzerland.

At IonQ, we are pioneering the future of computing with our state-of-the-art full-stack quantum computer powered by trapped-ion technology. Our commitment to advancing beyond classical physics and current supercomputing capabilities is unlocking unprecedented possibilities in computing. Our quantum technology stands to revolutionize numerous sectors, including healthcare, materials science, finance, artificial intelligence, machine learning, and cryptography. Join us at the forefront of this groundbreaking technological evolution.We don’t just build the world’s best quantum computers—we also provide access to them via cloud services to customers around the globe, including organizations with complex needs.We are seeking a Staff Software Engineer to spearhead the development of our Identity and Access Management (IAM) and Role-Based Access Control (RBAC) systems. In this role, you will empower our customers to manage their identities and secure their data effectively. Collaborating closely with our product team and fellow engineers, you will play a pivotal role in constructing the premier quantum platform for our clients and partners.

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