Backend Engineer

Licorne Society a été missioné par une startup IA en pleine croissance pour recruter leur Backend Engineer.

About the Company

We’re building the AI copilot for notaries and real-estate professionals , automating complex legal workflows and document analysis.

Our platform combines Fast

API , Postgre

SQL , LLMs , and knowledge graphs to reduce transaction times by over 80% .

Having reached early product-market fit , we’re now scaling rapidly — expanding data pipelines, integrations, and AI-powered document logic.

You’ll join a small, focused engineering team at the moment when product architecture still shapes the company’s future.

Role Overview

As Backend Engineer , you’ll build the core systems behind a high-trust, mission-critical product used daily by legal professionals.

You’ll work closely with our Lead Backend Engineer, Lead Frontend Engineer and Lead LLM Engineer to design APIs, improve performance, and ship new AI-driven features.

We iterate fast and value reliability, ownership, and clarity of thought.

What You’ll Do\n\n

Design and ship clean, well-tested REST APIs using Fast

API

Implement business logic for document processing and data flows

Design and optimize Postgre

SQL schemas and queries (SQLAlchemy)

Integrate with third-party APIs (Stripe, Hub

Spot, OCR/AI providers)

Contribute to background jobs and async pipelines (Celery, Redis)

Write tests and CI pipelines ensuring reliability at scale

What We’re Looking For

Core Technical Skills\n\n3–5 years of backend development wi