Senior AI Engineer

Description de l'emploi

About the job

About H:

H exists to push the boundaries of superintelligence with agentic AI. By automating complex, multi-step tasks typically performed by humans, AI agents will help unlock full human potential.

H is hiring the worlds best AI talent, seeking those who are dedicated as much to building safely and responsibly as to advancing disruptive agentic capabilities. We promote a mindset of openness, learning and collaboration, where everyone has something to contribute.

Holistic, Humanist, Humble.

Key Responsibilities

• :Own the full orchestration stack that connects tools (via MCP), RAG systems, browsing agent and more into fluid workflow
• sDesign, build, and scale LLM-powered backend systems that drive autonomous, goal-driven behavio
• rCollaborate closely with researchers and product designers to ship fast, iterate, and deliver agentic U
• XMaintain and evolve a fast, clean front-end in Next.js for agent interaction and contro
• lOptimize performance, routing, and observability across a multi-agent syste

m
Requirements

• :5+ years of experience, including time in a fast-moving AI start
• upDeep backend engineering expertise (Python, APIs, async orchestratio
• n)Strong frontend experience (Next.js + TypeScrip
• t)Experience with LLM-native architectures: prompt engineering, RAG, tool u
• seFamiliarity with vector databases, embedding models, and retrieval syste
• msAbility to make architectural decisions and ship autonomous

ly
Locat

ionHs teams are distributed throughout France, the UK, and the

US.This role may be fully remote or hybrid for candidates based in cities where we have an office currently Paris and Lond

on.The final setup will be determined with the hiring manag

er.
What We O

• fferA front-row seat in one of the most ambitious AI star
• tupsThe opportunity to shape the future of agentic AI through highly visible, performance-driven
• workCompetitive salary and eq
• uityA fast-moving, highly collaborative environment working alongside world-class t
• eamsClear pathways for personal growth, experimentation, and leader

ship