Creating revolutionary open-ended conversational applications through breakthrough research.

Character.AI

Software Engineer, Machine Learning Infrastructure

Research Engineer, ML Systems (All Industry Levels)

Staff Software Engineer, Applied ML

Product Manager, Engagement

Data Scientist, Product

UX Researcher

Character.AI seeks a seasoned ML Infrastructure engineer to design, build, and maintain training and serving infrastructure for ML research and product development.  Responsibilities include providing infrastructure support for ML research, building tooling for diagnosing cluster issues and hardware failures, monitoring deployments, managing experiments, and maximizing GPU allocation and utilization.  The ideal candidate possesses 4+ years of experience supporting ML infrastructure, developing diagnostic tools, and working with cloud platforms like Compute Engine, Kubernetes, and Cloud Storage. Experience with GPUs is essential.

<div class="_descriptionText_4fqrp_201"><h1>About the role</h1>We’re looking for seasoned ML Infrastructure engineers with experience designing, building and maintaining training and serving infrastructure for ML research.Responsibilities:<ul style="min-height:1.5em"><li>Provide infrastructure support to our ML research and product</li><li>Build tooling to diagnose cluster issues and hardware failures</li><li>Monitor deployments, manage experiments, and generally support our research</li><li>Maximize GPU allocation and utilization for both serving and training</li></ul>Requirements:<ul style="min-height:1.5em"><li>4+ years of experience supporting the infrastructure within an ML environment</li><li>Experience in developing tools used to diagnose ML infrastructure problems and failures</li><li>Experience with cloud platforms (e.g., Compute Engine, Kubernetes, Cloud Storage)</li><li>Experience working with GPUs</li></ul>Nice to have<ul style="min-height:1.5em"><li>Experience with large GPU clusters and high-performance computing/networking</li><li>Experience with supporting large language model training</li><li>Experience with ML frameworks like Pytorch/TensorFlow/JAX</li><li>Experience with GPU kernel development</li></ul><h2>About Character.AI</h2>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.Compensation Range: $150K - $350K</div>