Senior Front End Engineer
Senior Frontend Engineer at IonQ (Santa Clara, CA, hybrid) who designs and builds the UI for its Quantum Security platform, turning complex network and security data into intuitive dashboards, graphs, and workflows. Blends hands-on React/TypeScript engineering with UX design, frontend architecture ownership, and mentoring of junior engineers.
- Compensation
- $124K–$186K / yr
- Location
- Santa Clara, California, United States
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Contract
- Experience
- 8+ years
- Category
- Frontend
- Posted
Skills
Must have
- 5+/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 — information architecture, interaction design, 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
Nice to have
- 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)
Full description
**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.
Location: This role is based at our Santa Clara, CA office, with the option to work a few days a week remotely.
Travel: Up to 15%, domestic or international.**
Job ID:** 1903
**The Role:
We're looking for a Senior Frontend Engineer with 5+/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'll turn complex network and security data into interfaces that are intuitive, fast, and trustworthy for security and network teams. As a senior member of the team, you'll also help shape frontend architecture, mentor junior engineers, and drive design/engineering best practices. You'll work closely with product managers, backend engineers, and QA/solutions teams to ship features that make sense to real users under real operational pressure.
Responsibilities:
- Design and implement responsive, accessible UI components for the platform using modern frontend frameworks (React, Vue, or similar).
- Translate complex network security concepts — topology maps, risk/posture scores, policy rules, alerts, remediation steps — 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 (Figma or similar) and iterate based on user feedback and usability testing.
- Collaborate with backend engineers to define and consume APIs, ensuring data-heavy views (topology graphs, tables, charts) remain performant at scale.