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.