Senior Frontend Platform Engineer – Design Systems & AI UI

Doist; New York, San Francisco (NY, CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Free lunch and dinner in the office

Flexible PTO

Quarterly team offsites

Job summary

DoppelDoppel is seeking a senior frontend engineer to elevate UI/UX across our core product platform. You will work with our lead designer to craft a cohesive, performant user experience for enterprise customers, influencing seven-figure deals and interactions across product surfaces.

You will help build a frontend platform so product teams ship features, not frontend plumbing, using a constrained design system, agent-driven code generation, and robust deployment pipelines.

Qualifications

• 5+ years of software engineering experience with React and TypeScript.
• Experience owning platform-level frontend work: design systems, component libraries, build tooling.
• Genuine excitement about AI-assisted development and building rails for safe agent use.
• Strong collaboration with designers, product teams, and backend platform engineers.

Responsibilities

• Build and maintain the frontend platform: app shell, data layer, routing, auth, and deploy pipelines.
• Evolve the design system from a component library to a contract with tokens and docs.
• Develop the design-to-production pipeline with tooling and guardrails for production-quality surface.
• Ensure platform safety with permissioning, observability, accessibility, and internationalization baked in.
• Own production health: monitors, SLOs, ownership routing, and fast incident paging.
• Package the platform for scale with versioned components and scalable scaffolding.
• Partner closely with design and product teams to align roadmap with customer needs.

Skills

React

TypeScript

Frontend architecture

Design systems

Tools

Relay

GraphQL

Storybook

Figma

Job description

DoppelDoppel is seeking a senior frontend engineer to elevate UI/UX across our core product platform. You will work with our lead designer to craft a cohesive, performant user experience for enterprise customers, influencing seven-figure deals and interactions across product surfaces.

You will help build a frontend platform so product teams ship features, not frontend plumbing, using a constrained design system, agent-driven code generation, and robust deployment pipelines.