UI Developer – Agentic Security Platform

About the role

The team is building an Agentic Security Platform that secures AI agents and LLM‑powered applications. As a UI Developer you will create the web interface that lets security experts investigate agent inventories, session timelines and policy violations.

Key responsibilities

• Develop and maintain the product UI using React and TypeScript for inventory, policy management, session investigation and dashboards.
• Design data‑dense components such as timelines, graphs, tables and search filters that handle large security datasets.
• Optimize frontend performance and responsiveness when rendering high‑volume data.
• Collaborate with Go backend engineers on REST and gRPC‑web APIs and with design teams on interaction patterns.
• Ensure frontend quality through component architecture, accessibility, testing and performance best practices.
• Contribute to the shared design system and frontend tooling, leveraging AI‑assisted development workflows.

Required profile

• 4+ years of frontend development experience building complex, data‑rich web applications.
• Strong proficiency in TypeScript and React, with solid knowledge of state management and rendering performance.
• Experience consuming REST and/or gRPC‑web APIs and working closely with backend engineers.
• Hands‑on experience with data‑visualisation libraries such as D3, visx or Recharts.
• Proven ability to build performant tables, timelines or dashboards handling large datasets.
• Extensive frontend testing experience (unit, component and end‑to‑end).
• Fluent English communication skills.
• Comfortable using modern AI coding assistants (Claude Code, Cursor, GitHub Copilot, Codex) as a core part of the workflow.

Required skills

• React
• TypeScript
• REST APIs
• gRPC‑web
• D3 / visx / Recharts
• Frontend performance optimization
• Unit, component and end‑to‑end testing
• AI coding assistants (Claude Code, Cursor, GitHub Copilot, Codex)