What are the responsibilities and job description for the Staff Applied AI Engineer position at HartleyCo?
Staff Applied AI Engineer - Founding Team
New York City | Five days onsite
$250,000 - $300,000 base meaningful equity
We’re working with an early-stage company building production AI agents for accounting. They’ve raised $5m and are combining AI-native software with the acquisition of accounting firms - using technology to transform the underlying service rather than simply selling another software tool.
You’ll own agent systems end to end: architecture, tool use, context, orchestration, evals, observability and reliability across real financial workflows.
We’re looking for:
- Staff-level engineering ability with strong Python fundamentals
- Significant experience building production LLM or agent systems
- Evidence of owning complex systems from prototype through deployment
- Early-stage, founding or high-ownership startup experience
- Strong judgement around deterministic code versus model-driven behaviour
- Ideally, experience in a regulated or document-heavy vertical
Message me directly or apply with your CV.
Salary : $250,000 - $300,000