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Software Engineer, Applied ML (Discovery, Recommendation & Search)

About the RoleAs 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 optimization, data pipeline to

Company

Character.AI

Location

Redwood City, CA

Status

Open

Posted

2025-12-18T03:00:32.166+00:00

Character.AI is hiring a software/ML engineer to build the models and backend infrastructure behind its discovery surfaces — recommendation, ranking and search — covering data pipelines, model training and serving, plus optimization of existing systems and support for new AI-generated content formats. The posting asks for 5+ years of industry experience, cloud infrastructure on GCP, AWS or Azure, a modern typed language, REST and gRPC services, CI/CD, and PyTorch or TensorFlow. GPU/TPU deployment and vector database experience are desired. Hybrid in Redwood City.