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Zeno is a legal AI startup building a platform that helps lawyers research, review, and draft documents with real legal reasoning — not just text prediction. We’re developing technology that can:
- Search and retrieve statutes, case law, and commentary with high precision.
- Reason step-by-step, applying legal tests and weighing precedents.
- Explain every answer transparently, so lawyers can trace conclusions back to the exact sources.
You’re joining an early-stage startup that is already working with leading firms. Backed with €3M in seed funding, we’re now scaling a team of engineers and thinkers who want to solve real problems, drive innovation, and create lasting change in the legal sector.
The role
As an AI Engineer at Zeno, you will work at the forefront of AI and large language model (LLM) applications, designing and implementing intelligent systems that redefine how legal professionals access and utilize knowledge. You’ll explore cutting-edge advancements, tackle deeply technical challenges, and help bring AI-driven solutions to life.
This is a high-impact role where your contributions will shape the next generation of AI-powered legal tools, enhancing search, automation, and decision-making for thousands of legal professionals.
What You’ll Be Working On
- Architect and deploy AI-driven solutions that enhance search, knowledge retrieval, and workflow automation.
- Stay ahead of the curve by experimenting with state-of-the-art LLM models, including agentic flows and reasoning frameworks.
- Optimize performance, scalability, and security while maintaining high-quality, production-ready code.
- Rapidly prototype and validate new ideas, working closely with users to refine and deploy impactful AI applications.
- Work alongside the technical founders, experienced engineers and legal professionals to push AI’s limits in legal tech.
- You thrive on technical challenges and have a deep passion for AI, LLMs, and building intelligent applications.
- Experience working with AI and software development, preferably with LLM applications (either in work experience or side projects).
- You’re skilled in languages like Python and can work across tech stacks to bring AI systems to life.
- You take ownership, thrive in a fast-paced environment, and aren’t afraid to experiment.
- You enjoy working with like-minded engineers, bouncing ideas, and building next-generation AI systems together.
Things will break, priorities will shift, and there won’t always be a playbook. You’ll wear multiple hats, ship fast, and learn faster. Some weeks will feel chaotic, some problems will feel bigger than your role. That’s the nature of the ride from startup to scale-up: if you need stability and structure, this won’t fit. But if you thrive on ownership, speed, and building from zero, you’ll love it here.
Why join us
- Be part of a product-driven team reinventing how legal professionals work.
- Join early and shape the foundation of a fast-growing, high-impact startup.
- Work in a place where hierarchy doesn’t matter — only the best ideas do.
- Collaborate with a top-tier team of engineers, researchers, and entrepreneurs.
- Competitive compensation, employee benefits and strong upside as we grow.
- An inspiring place to work in the heart of Rotterdam.
Key Skills
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