Senior Software Engineer, AI Core

The AI Core team builds the platform that gives users AI-driven access to Chainalysis's blockchain investigation and compliance products. We build the agent runtime, the execution infrastructure, and the tool and skill systems that let AI reason about what users need and deliver answers, artifacts, and automation grounded in Chainalysis's proprietary data across sandboxed environments, durable workflows, and a deep catalog of product integrations. We run a small team with high ownership; we're looking for engineers who care about building systems where AI has real tools, real data, and real consequences.

In this role, you’ll:

- Design and build the agent platform end to end, from the context and tool layer that shapes what agents can reason about, through the execution runtime where code runs, to the interfaces that expose results to users.

- Own the skill architecture, designing how agents discover, learn about, and invoke capabilities across Chainalysis's product suite. This includes writing skill client libraries, their documentation, and testing them end to end.

- Build and operate sandboxed execution environments where agent-generated code runs with tenant-level security boundaries and durable file persistence.

- Ship full-stack features across frontend, backend, skill libraries, and infrastructure. You own the full lifecycle from design through production operation.

- Develop the workflow platform that lets users automate complex processes beyond single conversations.

- Drive AI quality, cost, and observability, including multi-model orchestration, context window management, prompt engineering, and tracing across multi-step agent runs.

We’re looking for candidates who have:

- Built and shipped full-stack features across frontend, backend, and infrastructure, with demonstrated ownership from design through production operation.

- Worked with LLMs in production and formed real opinions from it. Tool use, agent orchestration, streaming, promp...