UI Engineer (Remote - California or North Carolina, US only)

This is a mid-level front-end role at an early-stage, well-funded security company that protects application runtimes. You will work on the React and TypeScript operator consoles that engineering and security teams use to manage large fleets of protected systems, monitor AI agent activity, and write enforcement policies. You will work day to day with product designers, who build UI as working code, and with backend and control plane engineers on the API layer.

What you'll do

• Review designer-authored merge requests and bring them to production quality, covering structure, types, tests, accessibility, performance, and light and dark themes.
• Turn one-off UI into shared, documented components in the design system and Storybook, and move existing screens onto them.
• Build data-dense views such as dashboards, tables, charts and filters that remain fast on very large data volumes, working with GraphQL queries.
• Own UI test coverage with Vitest for units and Playwright for end-to-end flows, keeping CI green.
• Verify features live in secured environments with real authentication, authorization and realistic load before calling them complete.
• Help set conventions, lint rules and instructions that make AI-assisted UI code safer to merge.

What you need

• About 3 to 5 years of professional front-end experience with TypeScript and modern React, including hooks, component composition and state management.
• Comfort reading existing code before changing it, and a habit of diagnosing root causes rather than patching symptoms.
• Experience with data-heavy UI, such as pagination, virtualization, and server-side filtering.
• Solid CSS skills, including flexbox, grid, overflow and responsive layout.
• Git experience in repositories with several active release branches is a plus.
• Must currently be based in California or North Carolina.

Applicants must be based in: United States.

How to apply

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