Founding AI Engineer (CDI) | Startup IA– Paris - CDI H/F

Job description

Salaire: 75k
The Company

A company is building an AI\-powered platform designed to fully automate accounts receivable and cash collection workflows.

Rather than a traditional SaaS tool, it develops an autonomous engine that connects directly to client systems and manages the entire process \- from payment reminders to legal escalation \-through intelligent, end\-to\-end workflows powered by LLMs.

The company is at pre\-seed stage (\~€1M raised) with a founding team of 3 and is entering a key phase of product construction.

Role

Looking for a hands\-on Founding Engineer to join at an early stage as one of the first technical hires, working directly with the *CTO*.

• Build and ship product features from scratch to production


• Design and implement end\-to\-end AI workflows (LLMs, agents, automation)


• Work across the full stack (backend, frontend, infra, data)


• Integrate with client systems and orchestrate complex data flows


• Contribute to core architectural decisions in a zero\-legacy environment


• Iterate fast and take ownership of product scope

Requirements

Profile

• 1–7 years of experience


• Strong fullstack engineering skills (backend \+ frontend \+ systems thinking)


• Previous experience in startup environments or entrepreneurial projects


• Proven ability to build and launch products from scratch


• High autonomy and strong ownership mindset


• Comfortable operating in ambiguous, fast\-moving environments

• Experience building real\-world applications involving AI


• Hands\-on work with LLMs, agents, or end\-to\-end AI workflows


• Ability to move from prototype to production systems

• TypeScript (Next.js)


• PostgreSQL


• Nice to have : Supabase

• Location: Paris (18th arrondissement)


• Remote: \~2 days/week

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