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Salary: USD 124,000 - 186,000 / annual
IonQ is the world's leading quantum computing platform and merchant supplier, delivering integrated quantum solutions across computing, networking, sensing, and security. The company has achieved 99.99% two-qubit gate fidelity and set world records in quantum computing performance. IonQ works with major customers including Amazon Web Services and AstraZeneca to accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense.
We are seeking a Senior Frontend Engineer with 5+ to 8+ years of experience to design and build the interface for our Quantum Security platform. This role blends product design thinking with hands-on frontend engineering. You will transform complex network and security data into intuitive, fast, and trustworthy interfaces for security and network teams. As a senior member of the team, you will help shape frontend architecture, mentor junior engineers, and drive design and engineering best practices.
Key Responsibilities:
- Design and implement responsive, accessible UI components using modern frameworks (React, Vue, or similar)
- Translate complex network security concepts (topology maps, risk/posture scores, policy rules, alerts) into clear, usable visual interfaces
- Own end-to-end UX for key workflows: onboarding, network/device discovery, dashboards, drill-down investigations, and reporting
- Create wireframes, prototypes, and high-fidelity mockups in Figma or similar tools, iterating based on user feedback
- Collaborate with backend engineers to define and consume APIs, ensuring data-heavy views remain performant at scale
- Partner with QA and Solutions Testing teams to validate workflows across real customer network scenarios
- Conduct or support usability testing and gather feedback from customers, sales engineers, and support teams
- Maintain and evolve a component/design system for consistency across the platform
- Ensure UI meets accessibility (WCAG) and cross-browser compatibility standards
- Monitor and optimize frontend performance, particularly for large topology and data sets
- Help define and evolve frontend architecture, tooling, and coding standards
- Mentor mid-level and junior frontend/UI engineers through code reviews, pairing, and design critiques
- Drive technical decisions on state management, component architecture, and performance
The role is based at the Santa Clara, CA office with the option to work a few days per week remotely. Travel up to 15% (domestic or international) is expected.
Requirements:
- 5+ to 8+ years of experience as a frontend engineer, UI/UX engineer, or product designer with strong coding ability, ideally on data-dense or technical SaaS products
- Demonstrated experience owning frontend architecture decisions and mentoring other engineers
- Proficiency in modern JavaScript/TypeScript and a component-based framework (React preferred; Vue/Angular acceptable)
- Strong UX design skills including information architecture, interaction design, and visual hierarchy, with a portfolio demonstrating design-to-code work
- Experience designing interfaces for complex, data-heavy domains (dashboards, network/graph visualizations, security tools, DevOps tools, or similar)
- Proficiency with design tools such as Figma, Sketch, or Adobe XD
- Familiarity with REST APIs and working closely with backend teams to shape data contracts for UI needs
- Understanding of responsive design, accessibility standards (WCAG), and cross-browser/device compatibility
- Ability to conduct or contribute to usability testing and translate findings into design/engineering improvements
Preferred Qualifications:
- Prior experience in network security, cybersecurity, or IT infrastructure SaaS products
- Familiarity with data visualization libraries (D3.js, Recharts, Cytoscape.js, or similar) for rendering network topology and graph-based data
- Basic understanding of Layer 2/Layer 3 networking concepts (VLANs, routing, ACLs)
- Experience with design systems and component libraries at scale
- Exposure to CI/CD pipelines and frontend testing frameworks (Jest, Playwright, Cypress)
