We're hiring an AI Engineer & Researcher who is looking to push the boundaries of our models by implementing and experimenting with new research and techniques. As part of the Interfaze lab, you will help improve the performance and capabilities of our models by managing our AI lifecycle, including fine-tuning, automating data collection and cleaning, benchmarking, and deployment. As a founding member at Interfaze, your role will be dynamic, offering opportunities to spearhead and launch innovative research, papers, and products into production while being the go-to expert for all things AI!
JigsawStack (now rebranding as Interfaze) is an AI infrastructure startup providing a unified SDK and API suite of purpose-built small models designed to automate high-maintenance backend developer tasks including web scraping, OCR, translation, speech-to-text, and classification. The company's flagship evolution, Interfaze, is positioned as 'the world's first LLM built for deterministic developer tasks,' combining heterogeneous deep neural networks, small language models, and a context-construction layer into a single OpenAI-compatible API. Founded in January 2024, the company was accepted into Y Combinator's Spring 2026 batch and has processed over 10 million API requests since its beta launch.
Salary
$150,000 - $350,000
Equity
0.5% - 2%
Location
San Francisco, CA
Experience
1+ years
Total raised
$2.2M
Last stage
Pre-seed
Investors
No applications, no recruiter spam. Just the intro.
A few questions to make sure this role is the right shape for you. Two minutes.
I write the intro, send it to the founder, and handle the back-and-forth.
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.