Frontend Engineer, Platform

Doppel

1d•$130,000 - $220,000

About The Position

Doppel is seeking a senior frontend engineer to enhance the UI/UX of its core product platform. This role involves collaborating with the lead designer to create a cohesive, performant, and modern user experience that builds confidence with enterprise customers. The work will significantly impact high-value deals and user interactions with the product.

Requirements

5+ years of software engineering experience.
Deep expertise in React and TypeScript.
Experience building and operating production web applications.
Experience owning platform-level frontend work, such as design systems, component libraries, build tooling, data-layer patterns (Relay or similar GraphQL clients), or frontend infrastructure used by other engineers.
Genuine excitement about AI-assisted development and building safe rails for agent-driven development.
A platform mindset focused on enabling other teams' success.
Comfort operating in ambiguity and shaping a team's charter.
Strong communication skills, with experience communicating with product teams, designers, and backend platform engineers.
Product-minded, highly autonomous, and comfortable in a fast-paced startup environment.

Nice To Haves

Familiarity with production monitoring and performance work (RUM, SLOs, error budgets).
Experience collaborating deeply with designers, including design tokens, Figma workflows, and Storybook-driven development.

Responsibilities

Build and maintain the frontend infrastructure for all products, including the application shell, data layer, routing, auth, and build/deploy pipeline.
Evolve the design system from a component library into a contract with constrained, composable primitives, tokens, docs, and guardrails for correct generated code.
Build the design-to-production pipeline, including tooling, agent workflows, and review guardrails, to enable designers and product teams to go from design to production without manual frontend coding.
Ensure platform safety by default through permissioning, packaging gates, observability, accessibility, and internationalization integrated into primitives.
Own the production health of the shared client, including monitors, SLOs, and ownership routing for automatic failure alerts.
Package the platform for scale with a versioned component library and scaffolding for new applications and product surfaces.
Partner closely with design and product teams, using their velocity as a success metric.