AI Engineer

About the role

At Lexroom.ai http://Lexroom.ai, we set the bar for legal AI—clear, fast, and built for trust.

In just a few years, what began as an idea has become a reliable platform adopted by thousands of legal professionals across Europe.

Our mission is clear: make the law faster, clearer, and more reliable, giving lawyers, law firms, and companies the time and confidence to focus on what truly matters.

We’re growing fast, backed by top-tier investors and a world-class team committed to rigor, clarity, and impact.

Today, Lexroom is a trusted partner, shaping the evolution of legal AI with the same rigor and precision that define our product.

WHY LEXROOM.AI http://Lexroom.ai?

- Shape the Standard: Be part of the team setting the benchmark for legal AI in Europe.

- Work with the Best: Collaborate with exceptional minds driven by competence, curiosity, and ambition.

- Deliver Meaningful Results: Your contribution will empower legal professionals to make faster, clearer, and more reliable decisions worldwide.

At Lexroom.ai http://Lexroom.ai, we leave buzzwords behind. Here, you’ll build something that lasts: a trusted platform, a strong reputation, a new standard for the legal world.

WHAT YOU'LL DO

- Design and build agent-driven and RAG-based AI systems to solve complex legal tasks with precision and efficiency.

- Fine-tune and post-train LLMs using cutting-edge supervised and reinforcement learning techniques to raise response quality.

- Develop and optimize large-scale search pipelines for LLM-powered agents.

- Implement and refine NLP algorithms to extract, structure, and validate information from legal documents.

- Run end-to-end evaluations to pinpoint bottlenecks, measure performance, and guide continuous improvements.

- Work closely with legal experts to design evaluation protocols and build reliable, domain-specific datasets that strengthen every layer of the stack.

- Maintain technical excellence by following established best practices, coding standards, and rigorous code-review processes.

WHAT YOU’LL BRING

- Proven expertise in building and managing robust ML pipelines.

- Strong Python skills with hands-on experience in LLM research and deep learning systems.

- Knowledge of search technologies such as full-text search, vector databases, or other large-scale retrieval systems.

- Collaborative mindset and readiness to work with legal experts, researchers, and engineers to keep improving the product.

- Familiarity with MLOps and integrating ML models into production backends (a strong plus).

- Up-to-date with LLM innovation, ideally with experience in pre-training or deploying large-scale models in real-world scenarios.

WHAT SETS US APART

An Exceptional Team.

At Lexroom.ai http://Lexroom.ai, you’ll work alongside top talent in tech and legal AI.