Founding AI engineer - Paris

Huscarl; Paris; Hybrid; EUR 90,000 - 140,000; Full time

Job summary

Huscarl in Paris is seeking a hands-on engineer to join the founders and own the full stack—from frontend to infrastructure—and to shape AI tooling using Claude Code and Codex. You will build AI agents to automate business workflows, maintain the autonomous AI actuary, improve UX/UI, and strengthen data connectors with third-party software.

Located in Paris, you will collaborate across teams in a fast-paced venture environment.

Qualifications

• High agency and ownership mentality.
• Tasteful and able to judge independently from consensus or AI slop.
• Proficiency in Python and TypeScript.
• Ability to work across the stack.
• Located in Paris, fluency in French and English required.

Responsibilities

• Maintain and improve the autonomous AI actuary - knowledge management, data extraction, connectors with 3rd party software, continuous improvement of UX/UI based on feedback and self-usage, self-improving loops
• Build AI agents that run the business - working with growth staff, automate business workflows towards full automation
• Maintain and improve the overall infrastructure

Skills

Python

TypeScript

Full-stack

Autonomy

Job description

The role

Working directly with the founders, you will improve software with full ownership: frontend, backend, infrastructure. You will work with Claude Code and Codex.

Specifically, you will:

• Maintain and improve the autonomous AI actuary - knowledge management, data extraction, connectors with 3rd party software, continuous improvement of UX/UI based on feedback and self-usage, self-improving loops
• Build AI agents that run the business - working with growth staff, automate business workflows towards full automation
• Maintain and improve the overall infrastructure

Requirements

High agency and ownership mentality

Tasteful and able to judge independently from consensus or AI slop

Proficiency in Python and TypeScript

Ability to work across the stack

Located in Paris, fluency in French and English required

Nice to have

Academic excellence

2 – 5 years shipping software in venture-backed tech companies

Demonstrated track-record building with AI tools and managing multiple coding sessions

Familiarity with data science and/or statistics