Senior Full Stack Engineer

Sailplane is an early-stage AI infrastructure startup focused on creating autonomous management technologies for AI data centers. As a Senior Full Stack Engineer, you will design and implement foundational agents and systems, taking ownership of projects in a fast-paced environment.

Responsibilities:

• Design, implement, and iterate on the agent stack owning how features move from the ADE (UX) into agent logic. Implement agents that must reliably execute complex workflows in real production environments
• Create simulation and evaluation pipelines to measure task success rates, safety, latency, and cost; build rich traces and observability to debug agent behavior
• Own features from initial design through deployment, that use the latest in AI and machine learning technologies, working on core areas of the Sailplane platform
• Write clean, maintainable code that solves real customer problems
• Optimize performance and proactively address scale challenges as our platform grows
• Work directly with large language models, natural language processing, and AI systems