Senior Frontend Platform Engineer

Build and ship the agent management platform UI and platform improvements using a microfrontend architecture, shared design system, and Server-Driven UI library. You will own the technical design and delivery of complex features or services, turning ambiguity into clear execution plans.

What you'll do

• Build and ship the agent management platform UI and platform improvements using microfrontend architecture, shared design system, and Server-Driven UI library where they fit.
• Own the technical design and delivery of complex features or services within your team, turning ambiguity into clear execution plans.
• Ship in small, high-quality increments, balancing speed with scalability, security, and long-term maintainability.
• Work full-stack when needed—TypeScript/React plus adjacent services and integrations—so features and platform changes are deliverable end-to-end, not blocked at the UI boundary.
• Build with reliability and observability in mind, defining SLIs, instrumenting your work, and proactively monitoring impact.
• Raise the bar through high-signal code reviews, documentation, and mentoring; contribute fixes upstream to shared packages when you hit the same problem twice.
• Mentor engineers, share patterns, and strengthen your team's technical standards.

What you'll need

• Professional experience building and shipping production systems in fast-moving environments.
• Strong bias for action—you move quickly, make informed decisions, and iterate based on real-world feedback.
• Comfortable operating in ambiguity and turning fuzzy problems into shipped results.
• Systems thinking: scalability, reliability, performance, and security are part of your default design mindset.
• High craftsmanship bar: clean, secure, well-tested code is your baseline.
• Ability to give and receive candid feedback and elevate those around you through mentoring and technical leadership.

What they offer

• TypeScript, React, React Router, styled-components, TanStack Query, nanostores tech stack
• Micro-frontends architecture with single-spa, Webpack, Turborepo, pnpm workspaces
• Testing frameworks: Vitest, RTL, MSW, Playwright
• Backed by leading global investors including General Catalyst, EQT Ventures, and Altimeter Capital