Staff Software Engineer – Billing & Metering

About IonQ: IonQ, Inc . [NYSE: IONQ] is the world’s leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ’s newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025, the company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance . Headquartered in College Park, Maryland, IonQ has operations in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are available through all major cloud providers, while we also meet the needs of networking and sensing customers across land, sea, air, and space. IonQ is making quantum platforms more accessible and impactful than ever before. We don’t just build the world’s best quantum computers—we sell them! We make our systems available via the cloud, alongside quantum services to do the heavy lifting for our customers. We are looking for a Staff Software Engineer to lead our billing and payments platform integration efforts, which makes it possible for us to meter and sell our products to customers. You’ll lead key components of the platform in collaboration with our product team and other engineers, to build the best quantum developer experience for our customers and partners. Responsibilities : Design and implement end-to-end usage-based billing capabilities, utilizing pricing primitives, payment flows, usage tracking, contract and entitlement models, and revenue data pipelines. Know where to extend third-party billing platform integrations and where to build our own primitives around them. Collaborate with Product and Customer Success teams to translate ambiguous business needs into scalable technical solutions for our next-generation billing system, including expansion into new international markets and supporting Enterprise resellers. Own the interfaces with third-party billing platforms like Metronome and Stripe as well as our internal dataset for generating invoices and revenue reports. Perform required manual work like Enterprise contract amendments, pricing config changes, and billing support escalations. A lot of it can be automated by building internal tooling, but some of it still requires human-in-the-loop. Partner with Finance, Legal, and other stakeholders on compliance-related technical decisions. You’d be a good fit with: Deep understanding of how to build for correctness and have an instinct for where idempotency, reconciliation, retry logic, and audit trails matter in a billing system Past experience with building usage-based billing, subscription, and invoice services Proven experience designing and leading large-scale, cross-team technical projects from inception to completion Exceptional written and verbal communication skills, demonstrated through a portfolio of technical design documents, architectural diagrams, or public presentations A strong sense of ownership and the ability to navigate ambiguity to drive complex projects forward with a high degree of autonomy Familiarity with using AI in day-to-day coding Bachelor's degree in Computer Science, Engineering or a related field, or equivalent training, fellowship, or work experience 8+ years of professional software engineering experience shipping backend or platform systems in production and 3+ years leading large-scale, complex projects as a tech lead You’d be a great fit with: Experience with the operational side of B2B billing or B2C billing Familiarity with global payment systems, including international tax regulations (VAT, GST), currency conversion, and local payment methods Worked on revenue reconciliation, financial reporting pipelines, or systems that had to survive an audit Familiarity with usage-based billing platforms like Metronome Expertise in programming backends in Go Location: This role will work onsite or hybrid at our office located in Bothell, WA. Travel: Up to 10% Job ID: 1343 The approximate base salary range for this position is $174,520 - $228,492 . The total compensation package includes base, bonus, and equity. 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 401K, 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. 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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