Our MissionAleph Alpha is one of the few companies in Europe doing serious foundation model pre-training like our recently released Kolibri-1 model.
Our customers - in finance, manufacturing, public administration - need models that understand German, meet European regulatory.
We're building that in Heidelberg.
We are hiring a Senior AI Researcher to join our Pre-training team and to advance the architecture and training of our next generation of foundation models.
If you are excited.
Teams and individual contributors are trusted to take responsibility for their work and drive meaningful impact.
We maintain a flat organisational structure with efficient, supportive management that enables quick decision-making, open communication, and a strong sense of shared purpose.
We collaborate closely on complex technical problems, working in pairs or using mob programming to resolve challenging issues.
About the RoleAs a Senior AI Researcher in Pre-training (f/m/d), you will own the critical technical levers that determine the success of our next-generation models: architecture, optimization, stability, and scaling.
Working at the high-leverage intersection of research and engineering, you will translate mathematical reasoning and empirical observations into principled training decisions - from small-scale proxy experiments to multi-thousand-GPU runs.
We are looking for an expert who can combine rigorous experimental design with high-quality production code, directly influencing model quality, run reliability, and the efficiency of the models we ship.
Your ResponsibilitiesRecipe & Architecture Optimization: Own core elements of the tr.