Rayni (https://www.rayni.ai) | Chicago - Hybrid or Remote | Full-time | Founding Full Stack Engineer

Mission: We accelerate scientific discovery. We are starting with helping scientists operate their instruments (like Mass Spectrometers) faster with our Gen AI-powered platform.

Impact: We help scientists develop new drugs faster, analyze diseased blood samples faster, study brain cancer faster, etc.

Funding (> $1.5M): Funded by tier-1 VCs, including winning the biggest academic accelerator program on the planet - New Venture Challenge at the University of Chicago. Past winners include Venmo and Grubhub, among others, over the last 25+ years.

Who are we hiring: 3+ YOE in full-stack engineering with a frontend focus (80%) and backend (20%).

You will: - Make fundamental decisions about the frontend stack and product vision - Work with scientists to convert their needs into features. - Long term: Help build the product engineering team, lead and mentor new engineers - Long term: Scale the product to millions of users

Complete job post: https://rayni.notion.site/Founding-Full-Stack-Engineer-2412a... More about the company, culture, and benefits: https://rayni.notion.site/Rayni-Careers-2312a8a0f8fe803ab5bb... Founding Story: https://polsky.uchicago.edu/2025/07/02/how-rayni-turned-scie...