Full Stack Software Engineer - Application Engineering

We are looking for a Senior Full Stack Software Engineer for Application Engineering. As a Software Engineer on the Applications Engineer team, you’ll be part of a cross-functional team whose mission is to deliver real-world applications and deliver value from the jump forward in computing that quantum solving represents.

We don’t just build the world’s best quantum computers - we apply cutting-edge quantum tools to real-world problems. Until this year, our team for Applications Research has been building prototypes and doing research, by working closely with our customers. Our new department, Applications Engineering, transforms those prototypes and research into applications for broad use. Our work makes those innovations available to more people and businesses; as libraries, as APIs, and ultimately as whole SaaS applications.

Our Application Engineering team has a commitment to engaging user experience and showing quantum advantage, not just talking about it. We are especially focused on clearly communicating the value of hybrid computing, and making clear outputs to visualize domain specific problems. It’s a chance to shape how quantum computing is conceptualized in contrast to classical computing

To support that goal and lay the groundwork for future quantum-enhanced services, this role will also help polish our internal tools, APIs, and integrations. Along with humans, other digital tools and systems will need to easily read and parse the solutions we generate. That means designing APIs and library interfaces, often in domain specific terms or formats, to speak to experts in tools and systems they already know deeply.

You will be a key contributor in taking novel quantum approaches to cutting-edge problems, and turning them into clear concise tools. You will help shape how everyday developers visualize and use quantum computing to solve problems, in close collaboration with Developer Tools, Infrastructure, and Product teams.

The ideal candidate will be excited about working on a chemistry simplification via Quantum Computing tool one month, and working on visualizing novel topology solver the next.

Responsibilities:

• Creating simple and clear interfaces in cooperation with domain experts. We bridge quantum computing to specific domain, by creating clear API interfaces in the language and visuals domain experts are experts in.
• Designing the API endpoints and intuitive software library interfaces, making applications and tools easy to maintain and update
• Working closely with peers in Applications, Developer Tools, and Field Engineering teams to share best practices and give feedback on internal tools, especially rich data API’s to support large data sets, and where applicable, visualization
• Mentoring junior developers with the team.

• Bachelor’s degree in Computer Science, Engineering, Physics, or a related field, or equivalent training, fellowship, or work experience
• 5+ years of experience as a full stack developer, preferably in backends based on JavaScript, Python, Golang
• 5+ years of experience in REST, GraphQL, or gRPC frameworks for robust data delivery
• Previous work in scientific computing, quantum computing, or a technical consulting fields
• Experience building or supporting rich UIs, especially with data visualization tools like three.js, D3, WebGL
• A track record of shipping applications that solve real business problems
• Familiarity with Agentic AI coding tools and techniques such as skills, docstring generation, code review, and best practices for AI coding, * 7+ years of experience as a full stack developer, preferably in Python or Golang as a backend language,
• 3+ years frontend experience in Three.js, D3 or WebGL, for heavier visualization. Previous work in quantum computing, quantum algorithms, or a degree in quantum physics
• Experience in scientific computing, especially in numpy, pandas, or in C/C++
• Experience packaging backend API’s and UI into containerized solutions for deployment to cloud services such as AWS, GCP, etc.

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: $145,920-$209,241 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., Remote or Hybrid United States 219K-274K Annually Expert/Leader 219K-274K Annually Expert/Leader Artificial Intelligence * Consumer Web * Edtech * Enterprise Web * HR Tech * Social Impact * Generative AI Lead strategy, roadmap, and execution for Coursera’s authoring and content production tools. Define product requirements, collaborate cross-functionally (Engineering, Design, Data Science, Research, Content, Marketing, Support), monitor production/ingestion metrics, and drive AI-enabled authoring innovations to scale high-quality, career-aligned content. Top Skills: Adaptive LearningAi/MlAutomated Quality AssuranceContent Authoring ToolsData AnalyticsGenerative AiHypothesis TestingMultimodal Media ProcessingPersonalizationTranslation Technology Mondelēz International

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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.

Location: This role is based out of our College Park, MD, Boulder, CO, Bothell, WA, or Ontario, Canada offices. We offer a hybrid work model, allowing for remote work two days per week.