Meitner Energy is developing advanced nuclear energy solutions intended to deliver reliable, scalable, and carbon-free electricity for industrial and grid applications.
Our international team brings together nuclear, engineering, commercial, regulatory, and project-development experience. We are building an organization focused on disciplined engineering, responsible execution, and the deployment of nuclear energy at meaningful scale.
The Opportunity
Meitner’s AI platform is being built now, and this role owns it end to end. You will design and deliver the model-serving infrastructure, the gateway and router layer, the retrieval pipeline, and the tiered hosting architecture that allows engineers, operators, and commercial teams to use AI safely on export-controlled and otherwise sensitive technical material. You will also personally deploy and tune the serving lanes, own the pipelines and automated tests that keep the platform reliable, and run the evaluation process that determines which models reach production. Alongside that mandate,



you will act as the company’s corporate cloud and infrastructure architect, owning the public cloud footprint and the design decisions that shape where workloads and data live.
The role carries genuine engineering authority. You will set code-quality, review, testing, and release standards for the platform, serve as the primary technical interface to security, compliance, and export-control stakeholders, and lead model evaluation and selection across a fast-moving landscape of open-weight and proprietary models. The work touches Meitner’s reactor program directly, and routing sensitive material to the right place is a requirement rather than an aspiration.
This role is adecuado for someone who:
- Wants to design and build a production LLM platform rather than operate one that is already finished.
- Takes real ownership of reliability: writes tests, enforces gates, and does not ship work they are not confident in.
- Is fluent across the

📌 AI Platform Engineer (Buenos Aires)
🏢 Meitner Energy
📍 Buenos Aires