Aleph Alpha

You'll work across the full stack of foundation model training—from optimizing cluster scheduling to enabling large-scale code execution for reinforcement learning. Your work directly shapes how quickly we can experiment and improve models in a **flat, autonomous team** that values **ownership and continuous improvement**.

You'll support a Co-CRO in a fast-paced AI company, ensuring smooth day-to-day operations. You'll **manage calendars and travel** while **taking ownership of projects** within a collaborative team. This role offers **flexible hybrid working** and a chance to join the AI revolution.

You'll **co-own data pipelines** for Aleph Alpha's foundation model pre-training, working across sourcing, processing, and mixture design. Your decisions will **directly shape model capabilities** backed by evidence-based experiments. You'll operate at **high leverage**—defining what the model learns.

You'll act as a trusted partner to the Chief Research Officer, bridging **AI research**, **engineering**, and **product development**. You'll translate cutting-edge innovation into scalable solutions and drive execution in a fast-evolving environment.

You'll **own the evaluation suite** for Aleph Alpha's foundation models, defining what 'better' means and building the infrastructure to measure it. Your work will **directly influence training decisions** and model quality. This role combines **deep research experience with high engineering competence** in a flat, autonomous team.

You'll join a team building state-of-the-art LLMs, focusing on **reinforcement learning methods** for **large-scale post-training**. Your work directly improves models shipped to customers, pushing the boundaries of AI capabilities in Europe.

You'll join Aleph Alpha's pre-training efficiency team to **maximize hardware utilization** and **training throughput** on large-scale GPU clusters. You'll profile training loops and eliminate bottlenecks from Python to GPU kernel. This is a chance to work on **foundation model pre-training** for European enterprise customers in finance, manufacturing, and public administration.

You'll manage Apple devices and Google Workspace for a 300+ person AI company. You'll ensure reliable, secure tool access through MDM and automation. This role offers a chance to shape IT infrastructure at the **forefront of AI innovation**.

You'll manage the **Apple ecosystem** and **Google Workspace** environment for a team of 300+ building the future of AI. Your work will ensure reliable, secure, and seamless access to tools. This role combines **hands-on support** with automation and security compliance.

You'll **shape the scientific methodology** behind pre-training data for large language models, **designing ablations and novel algorithms** to improve model capabilities. You'll collaborate with engineers and researchers to **build scalable data pipelines** that directly impact shipped models.

You'll join a leading European AI company working on **foundation model pre-training** for high-stakes applications. You'll advance the **architecture and training recipes** of next-generation models on massive GPU clusters. This role offers direct influence on shipped models and close collaboration with world-class researchers.