Senior Full-Stack Engineer — Quantum Applications (Hybrid)

Canaan Partners; Maryland; Hybrid; USD 152,000 - 228,000; Full time

Job summary

IonQ, Inc. is hiring a Staff Full Stack Software Engineer in Application Engineering. You will join a cross-functional team delivering real-world quantum applications and APIs, turning prototypes into usable software, and shaping how developers visualize quantum computing for practical problems.

The role emphasizes UX, hybrid computing value, and building tools that speak the language of domain experts while integrating with DevTools and cloud services.

Qualifications

• Bachelor's degree in Computer Science, Engineering, Physics, or a related field, or equivalent training/experience.
• 8+ years of experience as a full stack developer, preferably with JavaScript, Python, or Golang backends.
• 8+ years of REST, GraphQL, or gRPC frameworks for robust data delivery.
• Experience in scientific computing, quantum computing, or technical consulting.
• Experience building UIs with data visualization tools like Three.js, D3, WebGL.
• Track record of shipping applications that solve real business problems.
• Familiarity with Agentic AI coding tools and techniques.

Responsibilities

• Creating simple and clear interfaces in cooperation with domain experts; bridge quantum computing to domain areas via APIs.
• Design API endpoints and intuitive library interfaces for maintainability and updates.
• Collaborate with Applications, Developer Tools, and Field Engineering teams to share best practices and feedback.
• Mentor junior developers within the team.

Skills

Full stack development

REST APIs

GraphQL

gRPC

JavaScript

Python

Golang

Three.js

Data visualization

WebGL

AWS / GCP deployment

Containerized deployments

Agentic AI tools

Education

Bachelor's degree in Computer Science, Engineering, Physics, or related field

Tools

Three.js

D3

WebGL

AWS

GCP

Docker

Kubernetes

Job description

IonQ, Inc. is hiring a Staff Full Stack Software Engineer in Application Engineering. You will join a cross-functional team delivering real-world quantum applications and APIs, turning prototypes into usable software, and shaping how developers visualize quantum computing for practical problems.

The role emphasizes UX, hybrid computing value, and building tools that speak the language of domain experts while integrating with DevTools and cloud services.