About the role We are looking for people with solid engineering and machine learning skills to drive the research required for pushing the boundaries of artificial intelligence. Requirements: * 5+ years' experience with deep learning frameworks like Pytorch, Tensorflow, Jax * Deep understanding of the "whole stack" when it comes to designing, training, evaluating and deploying machine learning models, especially large language models * Demonstrated track record of successfully owning research projects from start to finish * Experience with generative models for various modalities * Experience writing GPU kernels using CUDA or Triton. About Character.AI Founded in 2021, Character is a leading AI company offering personalized experiences through customizable AI 'Characters.' As one of the most widely used AI platforms worldwide, Character enables users to interact with AI tailored to their unique needs and preferences. In just two years, we achieved unicorn status and were named Google Play's AI App of the Year - a testament to our groundbreaking technology and vision. Ready to shape the future of Consumer AI? At Character, we value diversity and welcome applicants from all backgrounds. As an equal opportunity employer, we firmly uphold a non-discrimination policy based on race, religion, national origin, gender, sexual orientation, age, veteran status, or disability. Your unique perspectives are vital to our success.