Senior Frontend Platform Engineer - Design Systems & DX

Jobtailor; San Francisco (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

Roo in San Francisco, CA, is seeking an experienced frontend platform engineer to set the long-term technical direction of our frontend stack and design system. You will partner with Product and Design to evolve the system and simplify consumption, while leading upgrades and migrations.

The role emphasizes collaboration with designers, deep React/TypeScript expertise, and hands-on AI-assisted development to streamline engineering pipelines and enable rapid page and flow delivery.

Qualifications

• Significant experience building production software with a focus on frontend systems.
• Strong full‑stack engineering fundamentals with deep expertise in React and TypeScript.
• Experience with React Native or mobile platforms.
• Experience collaborating with designers and modern design systems.
• Hands‑on experience with AI‑assisted development: Cursor, Claude, or similar.
• Connecting design systems to prototyping tools, AI coding environments, or engineering pipelines.
• Ability to operate effectively within an engineering organization.

Responsibilities

• Own the long-term technical direction of Roo's frontend platform, including the systems, tooling, and architecture.
• Partner with Product and Design to evolve our design system.
• Make our design system effortless to consume.
• Lead platform initiatives like framework upgrades and shared library evolution.
• Own the migration of legacy components to our v2 design system.
• Establish patterns that let engineers ship new pages and flows quickly.
• Improve developer experience through shared tooling, automation, documentation, and workflows.
• Identify and eliminate the friction points that slow builders down.

Skills

Frontend Development

Full-Stack Engineering

React

TypeScript

React Native

Design Systems

Prototyping Tools

AI Coding Environments

Automation

Documentation

Collaboration

Problem-Solving

Communication

Tools

React

TypeScript

React Native

Design Systems

Prototyping Tools

AI Coding Environments

Automation

Documentation

Job description

Roo in San Francisco, CA, is seeking an experienced frontend platform engineer to set the long-term technical direction of our frontend stack and design system. You will partner with Product and Design to evolve the system and simplify consumption, while leading upgrades and migrations.

The role emphasizes collaboration with designers, deep React/TypeScript expertise, and hands-on AI-assisted development to streamline engineering pipelines and enable rapid page and flow delivery.