machine learning Jobs - December 2025

Checkr (YC S14) is hiring across multiple roles, located in our San Francisco, Denver, and Santiago offices. Checkr builds people infrastructure for the future of work, designing a faster and fairer way to screen job seekers using modern technology powered by…

Konvu is a security-focused startup on a mission to make security invisible by automatically detecting, prioritizing, and remediating vulnerabilities without burdening engineers. Founders have deep roots in the security industry (part of the founding team at …

Renaissance Philanthropy's aim is to activate a virtuous circle of increasing ambition and impact between philanthropists and innovators: by identifying frontier experts both in science and in new ways of solving problems; by tapping into the growing number o…

At Goblins, we're building America's favorite teacher, starting with K-12 math. We're live in thousands of classrooms for in-class assignments, extra practice, and homework. Students work on a whiteboard while our models analyze their work in real time and nu…

Sphere Semi is applying AI techniques to automate the design of analog and mixed signal chips. Our techniques have been able to achieve state of the art PPA (power performance area) with relatively modest compute. We’re scaling up and that means we need to re…

We are a bootstrapped, profitable startup leveraging stochastic optimization, simulation, and machine learning to optimize decisions at scale. What we love: Scala and Nix, principled and reliable solutions and suckless systems.