(Senior) AI/LLM Engineer

The role

You will build agentic AI systems end-to-end. This includes designing LLM-powered systems, building retrieval pipelines, and developing evaluation and monitoring systems.

What you will do

• Design and build LLM-powered agentic systems from experimentation to production
• Build retrieval and context pipelines including RAG and hybrid search
• Develop evaluation and monitoring systems for AI performance
• Build scalable pipelines to process unstructured documents and data
• Implement automated feedback pipelines
• Own the architecture and reliability of AI systems in production
• Collaborate to integrate AI capabilities into the product experience

Required qualifications

• Proven track record of architecting and building complex, AI/LLM-powered systems or agents in production
• Experience designing systems that process and structure large volumes of unstructured data
• Experience developing evaluation and feedback loops
• Experience with Python is required
• High agency and ownership
• Mission-driven
• Product mindset
• Ability to iterate quickly in a fast-paced startup environment
• Willingness to work in-person in Munich with high intensity

Nice to have

• Experience in full-stack development (React / Typescript / FastAPI)

Benefits

• Steepest possible learning curve
• Founder-like freedom in your domain
• Real equity in Mercura
• Company card
• AI or productivity tools
• Free team dinners up to 4x/week
• UrbanSportsClub membership
• A company bike
• Team workouts 3x/week
• Easy relocation to Munich with an apartment available for around €800/month

Before you apply

• Technical Take-Home exercise
• Technical Interview
• On-Site interview
• 2–3 reference checks

About the company

Mercura (YC W25) helps companies in the real world move at software speed by automating back-office work. The team of 16 targets $10M by the end of 2026 and is expanding into the US.