Founding AI Engineer

## About the role MIRIAN AI is building the agentic financial operating system for PE-backed mid-market companies. Our AI agents don't just track tasks — they do the actual accounting work: computing accruals, reconciling transactions, generating journal entries, and improving with every close cycle. Humans review and approve. ## What you'll own - Agentic workflow architecture — multi-step LLM pipelines with tool use, memory, self-correction, and human-in-the-loop checkpoints - LLM orchestration — prompt engineering, structured output parsing, retrieval-augmented generation, evaluation frameworks - Financial reconciliation and accrual computation agents that learn from historical patterns - Integration with Anthropic Claude APIs, Langfuse observability, and Temporal workflows - Defining how AI gets applied to real accounting workflows — not theoretical, production ## Stack - Python - FastAPI - PostgreSQL - Temporal - Anthropic Claude APIs - Langfuse - AWS ## You should have - 4-5+ years software engineering experience, with at least 1-2 years building agentic or multi-step LLM systems in production - Deep understanding of tool-use patterns, chain-of-thought reasoning, retry/self-correction loops, and structured output validation - Strong Python backend skills — you're not just an ML researcher, you ship production code - Experience with evaluation and observability for LLM systems - Ownership mindset — you figure out what needs to happen and do it ## Nice to have - Fintech, accounting, or ERP domain knowledge - Prior 0→1 startup experience ## What we offer - Founding-team ESOPs and impact — shape the product and architecture from day one - $5B+ market dominated by legacy tools with zero agentic AI in production - Remote-friendly, flexible hours