Character.AI
Open positions
Machine Learning Infrastructure Engineer
You will support machine-learning research and products with training and serving infrastructure. You will build tools to diagnose cluster and hardware failures, monitor deployments, manage experiments, and maximize…
Software Engineer Applied ML Discovery Recommendation and Search
You will work with product, data science, and data platform partners to design and implement applied ML models and infrastructure. You will build ML backend systems for recommendation, ranking, and search, including…
Technical Program Manager AI Infrastructure
You will lead planning and execution for AI infrastructure initiatives spanning training, data systems, evaluation, and inference. You will align roadmaps, track infrastructure metrics, improve workflows and tooling,…
Technical Program Manager, Model Alignment and Deployment
About the role Model Alignment and Deployment is a critical, cross-functional effort spanning our Post-Training, Safety Engineering, Trust & Safety, ML Infra/Model Serving, and User Experience Research (UXR) teams.…
Technical Program Manager, AI Infrastructure
About the Role We’re hiring a Technical Program Manager, AI Infrastructure to lead high-impact programs that power ’s model development and serving systems at scale. In this role, you’ll partner closely with…
Software Engineer, Applied ML (Discovery, Recommendation & Search)
About the Role As a Software / ML Engineer you will work cross functionally with product, data science and data platform to identify, design and implement the applied ML models and infra, ranging from the model…
Software Engineer, Backend
About the Role We are looking for a talented and motivated Backend Engineer to join our team. You will be responsible for building and maintaining scalable, high-performance backend systems that power our products.…
Research Engineer, AI Safety & Alignment
About the role and team Joining us as a Research Engineer, you'll be at the forefront of tackling one of the most critical challenges in AI today: safety and alignment. Your work will be pivotal in understanding and…
Machine Learning Infrastructure Engineer
About the role We’re looking for seasoned ML Infrastructure engineers with experience designing, building and maintaining training and serving infrastructure for ML research. Responsibilities : Provide infrastructure…