Senior Frontend Platform Engineer — AI-Driven UI

Doppel; United States; On-site; USD 120,000 - 190,000; Full time

Benefits offered by this job

Health benefits

Flexible time off

Parental leave

Office perks

Cell stipend

Home office setup

Job summary

Doppel is seeking a senior frontend engineer to elevate UI/UX across our core product platform. You’ll partner with our lead designer to craft a cohesive, performant experience for enterprise customers, shaping how customers and internal teams interact with our product.

The Frontend Platform team aims to deliver a complete design system and agent-driven code generation so product teams ship frontend features without writing code. You’ll own the platform’s health and growth.

Qualifications

• 5+ years of software engineering experience with deep expertise in React and TypeScript.
• Experience owning platform-level frontend work: design systems, component libraries, build tooling, data-layer patterns (Relay or similar GraphQL clients), or frontend infrastructure other engineers build on.
• Product-minded, highly autonomous, and comfortable in a fast-paced startup environment.
• Familiarity with production monitoring and performance work (RUM, SLOs, error budgets) is a strong plus.
• Experience collaborating deeply with designers — design tokens, Figma workflows, Storybook-driven development — is a strong plus.

Responsibilities

• Build and maintain the frontend infrastructure every product runs on: the application shell, data layer, routing, auth, and build/deploy pipeline — so product teams ship features, not frontend plumbing.
• Evolve the design system from a component library into a contract: constrained, composable primitives with tokens, docs, and guardrails tight enough that generated code is correct by construction.
• Build the design-to-production pipeline: the tooling, agent workflows, and review guardrails that let designers and product teams go from a design to a shipped, production-quality surface without hand-writing frontend code.
• Own production health of the shared client: monitors, SLOs, and ownership routing so failures page the right team automatically and the platform stays trustworthy enough to build on blindly.

Skills

React

TypeScript

Design systems

Component libraries

Build tooling

Relay/GraphQL

Frontend infrastructure

Storybook

Figma workflows

AI-assisted development

Communication

Autonomy

Tools

Figma

Storybook

Job description

Doppel is seeking a senior frontend engineer to elevate UI/UX across our core product platform. You’ll partner with our lead designer to craft a cohesive, performant experience for enterprise customers, shaping how customers and internal teams interact with our product.

The Frontend Platform team aims to deliver a complete design system and agent-driven code generation so product teams ship frontend features without writing code. You’ll own the platform’s health and growth.