Senior RL Infrastructure Engineer — Scalable GPU Pipelines

You'll build the systems that make reinforcement learning work at frontier scale — coupling policy optimization with large fleets of inference workers, agentic environments, and the reward and verification systems that turn model behavior into learning signal. RL is how Luma's models go from capable to useful.RL at scale is a full-loop systems problem:...

We are looking for a Tech Lead/Senior Backend Engineer on behalf of our client, an innovative technology company operating at the intersection of financial technology, AI, and digital asset infrastructure. This is an opportunity to join a highly skilled engineering team working on complex backend systems where scalability, reliability, and data integrity are...

Research Scientist / Engineer Reinforcement Learning Infrastructure The role is about building the plumbing that lets reinforcement learning run on very large GPU fleets, from training and rollout generation to environments and reward checking. A strong candidate has already post-trained large language models with RL, built verifiers or agent environments,...

We are toogeza, a Ukrainian recruiting company that is focused on hiring talents and building teams for tech startups worldwide. People make a difference in the big game, we may help to find the right ones. Currently, we are looking for a Senior C++ Engineer for Zibra AI. About our clientZibra AI is a deep-tech company building data infrastructure for...

We are a platform for AI-lationships — personalized, emotionally intelligent connections between people and AI characters. We build characters that have their own personality, mood, and voice: they can ignore you, argue with you, miss you. If you've seen the film Her — that's roughly where we're headed. Our platform serves both emotional and intimate...