Frontend Engineer (Platform)

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

• We’re looking for a senior frontend engineer to elevate every aspect of UI/UX across our core product platform. You’ll work closely with our lead designer to create a cohesive, performant, and modern user experience that instills confidence and trust in enterprise customers. Your work will directly influence seven-figure deals and how customers and internal teams interact with our product
• Doppel’s Frontend Platform team is building toward something that hasn’t really been done: a frontend platform so complete that product teams no longer need to do frontend development. Designers and product engineers describe what they want; the platform — a rigorously constrained design system, agent-driven code generation, and paved-road infrastructure with permissions, telemetry, turns it into production code
• We’ve already proven the foundation works: our modern stack (React 19, Relay, a custom UI kit with agent-enforced golden paths) is explicitly designed so AI agents generate reviewable, production-safe frontend code. Your job is to close the remaining gap between design and production
• This is a small team with an ambitious, still-forming charter at a company rapidly expanding its product portfolio — you’ll shape what it becomes, and every product Doppel ships will run on what you build
• 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
• Make the platform safe by default: permissioning and packaging gates, observability, accessibility, and internationalization baked into the primitives rather than re-implemented per feature
• 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
• Package the platform for scale: a versioned component library and scaffolding that lets new apps and product surfaces spin up on the paved road from day one
• Partner closely with design and product teams as your customers — their velocity is your success metric

Benefits

• Health benefits: We’ve got your health covered, so you can focus on what matters.
• Flexible time off: Take the time you need, when you need it.
• Supporting Life’s Biggest Job: Because family matters most, we offer paid time off for parents to bond, rest, and adjust to life’s biggest change.
• Perks for Office Days: We make getting to the office (and staying nourished) easier.
• Cell stipend: We make staying in touch a little easier.
• Home office setup: We’ll take care of your home office, so you can take care of the work that matters.

• Comfort operating in ambiguity — the team’s charter is being defined in real time as the company grows, and you’ll shape it rather than inherit it
• 5+ years of software engineering experience with deep expertise in React and TypeScript, building and operating production web applications
• 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
• Strong communication skills: your customers are product teams, designers, and backend platform engineers
• Genuine excitement about AI-assisted development — you see agents as a way to raise the abstraction level of frontend work, and you want to build the rails that make that safe
• A platform mindset: you measure success by what other teams (and designers) can ship without you, not by features you shipped yourself