Grammarly
Senior Design Technologist, AI Tooling
Hub - San Francisco · Hybrid · Senior · Full-time · Posted Jun 22, 2026
- Experience
- 8+ years across creative technology, design engineering, interaction design, or advanced prototyping.
About the job
Leads AI prototyping and internal tooling for design teams, building interactive prototypes and systems that help integrate AI into design workflows while maintaining quality, accessibility, and brand consistency.
What you'll do
- Build realistic interactive prototypes and reusable frameworks for research, alignment, and product decisions.
- Develop AI-assisted design tools, API integrations, prompting frameworks, and front-end workflows.
- Partner with Design Systems, Accessibility, Product, Engineering, and Research teams to improve and scale design workflows.
What they ask for
- 8+ years across creative technology, design engineering, interaction design, or advanced prototyping, with a portfolio showing technical sophistication and design instincts.
- Experience building interactive experiences powered by LLMs, with AI behavior integrated into the interaction design.
- Fluency in Figma advanced capabilities, including Variables, Advanced Prototyping, Plugins API, and REST API.
- Strong front-end skills in HTML, CSS, JavaScript, and React; understanding of AI API integration, design systems, and accessibility standards.
Nice to have
- Experience building or fine-tuning LLM-powered features, agents, or tool-use flows.
- Familiarity with WebGL, Three.js, Spline, or generative/creative coding.
Tools
HTML, CSS, JavaScript, React, Claude, OpenAI, Gemini APIs, Figma
AI focus
Build AI-assisted design tooling, LLM-powered interactive prototypes, custom AI API integrations, prompting frameworks, and AI-integrated design workflows; help define AI-native design practices.
Model-written summary · the original posting is authoritative