# AI Engineer at Happenstance

- Company: Happenstance
- What the company does: AI-powered network search for sales, recruiting, finding a job, fundraising, and more. Find warm intros, discover mutual connections, and research people across LinkedIn, Gmail, Twitter, and other networks. Backed by Y Combinator.
- Company website: https://happenstance.ai
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Posted: 2025-12-03
- Apply by: 2026-10-12
- Apply: https://happenstance.ai/careers#ai-engineer
- Page: https://www.1752.vc/careers/jobs/happenstance-ai-engineer/

## About the role

Make our People Intelligence smarter. Optimize embedding pipelines, fine-tune models, and deeply integrate LLMs into our product.

## What they're looking for

- Optimizing our search pipeline with better retrieval and ranking
- Running experiments to improve relevance and accuracy
- Integrating new LLM capabilities into the product
- Building evaluation frameworks to quantify search accuracy and research quality
- Applying experience with LLM fine-tuning, AI research, or prompt engineering