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# Lead Software Engineer - Applied AI

- **Company:** Harnham Inc.
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Salary:** $350,000
- **Contract:** Permanent contract
- **Skills:** LangGraph Framework, Artificial Intelligence, BigQuery, Cloud Database, Continuous Integration, DevOps, Python (Programming Language), OpenAI, Software Engineering, Digital Twin, Retrieval-Augmented Generation, Large Language Models, Agentic-AI, Google Cloud Functions, Google Gemini
- **Published:** November 8, 2026
- **Apply:** https://www.juju.com/job/28_25304_73564967256954ef6ceeb2f98037f44b

## About the Role

* 8+ years in software engineering, with real production LLM work
 * Strong Python and cloud data experience
 * A builder's mindset, ideally from a small, scrappy team or startup
 * Clear communication with non-technical stakeholders
 * Bonus: PE or finance exposure (easily learned on the job)

## Description

* Be the CTO's right hand and technical number two
 * Own the development of the digital twin platform, from architecture through to production
 * Stay hands-on, building LLM systems in Python across OpenAI, Anthropic and Gemini (LangChain/LangGraph, RAG, agentic workflows, evals)
 * Run on GCP (BigQuery, Cloud Run, CI/CD) with no big DevOps team behind you
 * Support and mentor the engineers and analysts around you as the team scales