Senior Frontend Platform Engineer - AI-Driven UI System

Doppel Inc.

New York (NY)

Hybrid

USD 140,000 - 220,000

Full time

14 days+

A complete application in a minute

Tailored resume and cover letter, ready to send.

Get past ATS filters

Benefits offered by this job

Free lunch and dinner in the office

Flexible PTO

Quarterly team offsites

Job summary

Doppel Inc. is seeking a senior frontend engineer to elevate UI/UX across our core product platform. You’ll partner with the lead designer to craft a cohesive, performant experience for enterprise customers and influence seven-figure deals.

Your role centers on building a complete frontend platform—from design tokens to production-ready code—using React 19, Relay, and our tokenized UI kit, with a strong emphasis on scalability and safety.

Qualifications

5+ years of software engineering with React and TypeScript.
Experience owning platform-level frontend work: design systems, libraries, tooling.
Interest in AI-assisted development and safe, scalable frontend platforms.

Responsibilities

Build and evolve the frontend platform and design system to production-ready code.
Develop the application shell, data layer, routing, auth, and CI/CD pipelines.
Evolve the design system into a constrained, tokenized contract.
Create a design-to-production pipeline with agent workflows and guardrails.
Ensure platform safety with permissions, observability, and accessibility.
Own production health monitors, SLOs, and ownership routing.
Collaborate with design, product, and backend teams to maximize velocity.