Frontend Engineer - Advanced AI Systems

Frontend Engineer - Advanced AI Systems

We are partnered with a cutting-edge AI safety startup that is building the foundational reliability and optimization layer for advanced AI systems capable of managing hundreds of millions of API calls monthly and train proprietary LLMs and VLMs that outperform commercial and open-source models. They are seeking a Frontend Engineer with a strong focus on design and performance to build intuitive interfaces for safety monitoring and developer tools.

This is a permanent opportunity based in Paris, France.

Key Responsibilities

• Build fast, reliable, and user-friendly interfaces for critical safety dashboards and developer tools.
• Design and implement necessary APIs and data flows to support complex analytics and monitoring features.
• Work directly with large datasets that are stored and queried from data platforms like ClickHouse.
• Maintain a genuine focus on usability and design in all shipped features, moving beyond simply "hacking things together."

Key Requirements

• Strong experience with modern web development tools: TypeScript, React, Next.js, Tailwind CSS, and GraphQL.
• Hands‑on experience working with Large Language Models (LLMs), including using public APIs, function calling, and context strategies.
• Ability to write solid, non‑trivial SQL queries without requiring constant reference lookups.
• A proven focus on design, usability, and performance.

Keywords: Frontend Engineer / TypeScript / React / Next.js / Tailwind CSS / GraphQL / LLM / Large Language Models / AI Safety / Analytics Dashboard / ClickHouse / Data Visualization / SQL / Usability / Performance / Paris / Startup

If you are interested in this Frontend Engineer position, please send a copy of your CV to .

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Seniority level: Mid‑Senior level

Employment type: Full‑time

Job function: Engineering and Design

Industries: Software Development and Research Services