Senior AI Engineer: Autonomous Agents & Legal GenAI

Jus Mundi Partnership; Paris; Hybride; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Jus Mundi is seeking a Senior AI engineer to own the applied AI systems behind our multilingual legal search and retrieval platform. You will lead autonomous agents, RAG pipelines, and evaluation harnesses to ensure accuracy and high quality answers grounded in sources.

You will design production-grade AI systems, fine-tune models with synthetic data, and mentor engineers while collaborating across squads to raise the bar in GenAI capabilities.

Qualifications

• Proven track record shipping LLM-powered features to production with measurable impact.
• Strong command of vector databases, retrieval and ranking, and RAG architecture.
• Hands-on expertise designing and building agent orchestration loops with memory, planning, and state management.

Responsabilités

• Own retrieval and ranking improvements over a large multilingual legal corpus with measurable product impact.
• Design and build agent orchestration systems including tool calling, memory, planning, and multi-step reasoning over documents.
• Design and run rigorous evals and benchmarks to ensure accuracy and reduce hallucinations and mis-citations.
• Fine-tune models (LoRA/QLoRA) and generate synthetic data to train/evaluate them, balancing precision vs recall and cost.
• Deploy AI features to production, manage latency, cost, and reliability, with graceful degradation under load.
• Build shared tooling and patterns to accelerate other squads and reduce AI/data debt.
• Provide technical leadership, review code, guide RFCs, and contribute to hiring and onboarding.

Connaissances

Applied AI depth

Retrieval & RAG

Agent orchestration

Evaluation & benchmarking

Fine-tuning & synthetic data

Python for AI

System design

Mentoring & leadership

Multilingual NLP

Cloud infrastructure

Outils

OpenAI API

Anthropic

Mistral

Hugging Face

LangGraph/LangChain/LlamaIndex/AutoGen

Description du poste

Jus Mundi is seeking a Senior AI engineer to own the applied AI systems behind our multilingual legal search and retrieval platform. You will lead autonomous agents, RAG pipelines, and evaluation harnesses to ensure accuracy and high quality answers grounded in sources.

You will design production-grade AI systems, fine-tune models with synthetic data, and mentor engineers while collaborating across squads to raise the bar in GenAI capabilities.