LLM Engineer at JUST ADD AI (all genders)

About the role

As an LLM Engineer, you understand the potential of AI and especially LLMs, follow current developments, and apply this knowledge to solve real-world problems across a wide range of industries, projects, and products. Development: You develop (automation) solutions in small, self-directed teams by combining LLMs and software engineering
LLM Optimization: You optimize LLMs through finetuning, prompting, and RAG
Agent-based Workflows: You develop agent-based LLM workflows
Coding Assistants: You develop, test, and document making the most intensive use of LLM-based coding assistants
End-to-End: You are involved in the development from conception to deployment
LLM Security: You actively follow new attack vectors against LLMs and develop measures that stay one step ahead of them
You hold an excellent Master's degree in Computer Science or have a comparable background
You have comprehensive and always up-to-date knowledge in the field of LLMs, and are familiar with current models, benchmarks, and frameworks
You have a deep technical understanding of the Transformer architecture
You have experience with RAG, prompting, hosting, and finetuning of LLMs
You have excellent programming skills, live by best practices, and have successfully shipped software projects
You get the maximum out of LLM-based coding assistants: parallel sessions, MCP tools, Agent.md, workflow automation – and you are constantly looking for ways to become even more productive
You enjoy working in a team and can communicate effectively with people of different professions (technical and non-technical)
You have excellent German language skills
You have a strong sense of responsibility and identify risks early on
Through your motivation and self-discipline, you achieve a high quality standard, deliver results on time, and motivate other team members
You use modern tools, including AI, to work more efficiently
Successful since 2017 – and today the core of a young group of companies with over 100 highly motivated and talented people
AI thrives on exchange: We organize events like the  THINK REACTOR Meetup and regularly attend community gatherings like  AI Tinkerers . Come by and get to know us!
Short decision-making paths and the opportunity to contribute and make a difference
Access to all current AI models and AI tools (e.g. Cursor, Claude Code, Codex)
Modern offices at the headquarters in Bremen and coworking spaces in Hamburg and Oldenburg.
Company fitness, BusinessBike, and our own company boat
Coverage of e-learning courses of your choice
Regular team events and annual offsites
Renowned international clients from a wide range of industries
Fair, competitive salary and profit sharing
30 days of vacation and the option for part-time work
Top hardware, height-adjustable desks, and multiple monitors at every workstation
Obviously: organic fruit/vegetables, smoothie bar, unlimited ice cream, beverages (great coffee, mate, etc.)