Software Engineer, AI Platform (all Industry Levels)

Character AI Character AI · AI Frontier · Redwood City, CA · Technical Staff - Engineering

Software Engineer on the AI Platform team at Character.AI, focusing on building tooling and datasets for model training, developing data pipelines for continuous model improvement and human feedback alignment, and supporting data infrastructure (Spark, Beam, GCP). Requires 5+ years of data engineering experience in a consumer-facing tech company, with Big Query, dbt, Ray, Beam, and Spark.

What you'd actually do

  1. Support the research team by building the tooling and datasets that help us train the best models
  2. Activate our "data flywheel": Develop data pipelines and collaborate with ML researchers to ensure continuous improvement of our AI models and alignment with human feedback.
  3. Support our data infrastructure (Spark, Beam, GCP).

Skills

Required

  • B.A.S. in Computer Science or equivalent experience
  • 5+ years minimum experience in data engineering within a consumer-facing technology company
  • Experience building data warehousing and data pipelines with Big Query, dbt, Ray, Beam and Spark.
  • Experience with ML/LLMs
  • In-depth experience building and managing infrastructure in a cloud environment (esp. GCP)
  • Strong Python and SQL experience

Nice to have

  • Experience setting up containerization with Docker and Kubernetes
  • Familiarity with PyTorch
  • Excellent problem-solving skills and the ability to work independently and as part of a team
  • Strong communication and collaboration skills
  • Experience writing and maintaining Golang and Terraform code

What the JD emphasized

  • 5+ years minimum experience in data engineering within a consumer-facing technology company

Other signals

  • building the tooling and datasets that help us train the best models
  • Develop data pipelines and collaborate with ML researchers to ensure continuous improvement of our AI models and alignment with human feedback
  • Support our data infrastructure