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 FastAPI , PostgreSQL , 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

• Design and ship clean, well-tested REST APIs using FastAPI

• Implement business logic for document processing and data flows

• Design and optimize PostgreSQL schemas and queries (SQLAlchemy)

• Integrate with third-party APIs (Stripe, HubSpot, 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

• 3–5 years of backend development with Python

• Solid experience with FastAPI (or Flask)

• Strong grounding in PostgreSQL and SQLAlchemy

• Skilled in REST API design , testing (pytest), and Git workflow

• Familiar with Docker, Google Cloud Tasks

Bonus

• Integrations with Stripe , HubSpot , OCR , or AI APIs

• Experience with Azure or Google Cloud

• Background in document automation or legal tech

• Understanding of async programming and performance tuning

Mindset

• You write maintainable, production-ready code

• You thrive in fast feedback loops and small teams

• You value clarity, precision, and accountability

What You’ll Get

• Impact: Build the infrastructure behind a product handling real estate transactions worth millions.

• Learning: Collaborate with senior engineers working at the frontier of AI, data, and legal tech.

• Ownership: End‑to‑end responsibility on features that ship fast and matter.

• Compensation: Competitive salary + stock options.