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Rayni | Founding Full Stack Engineer
Location: Chicago - Hybrid or Remote Type: Full-time
About Rayni: Rayni (https://www.rayni.ai) is on a mission to accelerate scientific discovery. They are starting by helping scientists operate their instruments (like Mass Spectrometers) faster with their Gen AI-powered platform.
Impact: Rayni helps scientists:
- Develop new drugs faster
- Analyze diseased blood samples faster
- Study brain cancer faster
Funding: Rayni has received over $1.5M in funding from tier-1 VCs, including winning the New Venture Challenge at the University of Chicago (past winners include Venmo and Grubhub).
About the Role
Who they are hiring: A Founding Full Stack Engineer with a frontend focus (80%) and backend (20%).
Responsibilities:
- 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
Requirements
- 3+ years of experience in full-stack engineering
Additional Information
- 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...