Research Engineer, ML Systems (All Industry Levels) at Character.AI

Menlo Park, California, United States

$225,000 – $400,000Compensation

Mid-level (3 to 4 years), Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

AI & Machine Learning, Consumer SoftwareIndustries

Skills

Key technologies and capabilities for this role

PyTorchReinforcement LearningTransformersDistributed TrainingDeepSpeedMegatronCUDATritonKubernetesDockerLLM InferenceFlashAttentionPrefix-aware routingModel DistillationRLHF

Questions & Answers

Common questions about this position

What is the salary range for this Research Engineer position?

The salary range is $225K - $400K.

Is this role remote or does it require office work?

This information is not specified in the job description.

What skills are required for this Research Engineer role?

Requirements include at least a PhD or equivalent research experience, strong understanding of modern machine learning techniques like reinforcement learning and transformers, comfort writing clear production system code, and experience with PyTorch for model development.

What is the team and company culture like at Character.AI?

The team focuses on efficient GPU utilization for AI products and contributes to AI advancements, working across teams on cutting-edge ML training and inference systems. The company empowers people to connect, learn, and tell stories through interactive entertainment, with a mission-driven culture serving over 20 million monthly visitors.

What makes a strong candidate for this position?

A strong candidate has a PhD or equivalent research experience, proficiency in modern ML techniques, production coding skills, and PyTorch experience; nice-to-haves include distributed training with PyTorch distributed/DeepSpeed, GPU expertise, LLM inference systems, and ML deployment tools.

Character.AI

AI platform for creating virtual characters

About Character.AI

Character AI provides a platform that allows users to create and manage virtual characters with distinct personalities. These characters can engage with users in a realistic way, enhancing interactions in various digital settings. The platform is utilized by game developers to create immersive characters that improve gameplay, and by businesses to develop virtual customer service agents that offer a more personalized experience compared to traditional automated systems. Character AI differentiates itself from competitors by focusing on the depth of personality and engagement of its virtual characters. The company aims to capitalize on the growing AI market, providing continuous access to its platform through a subscription or licensing model, which supports its goal of expanding its client base and enhancing digital interactions.

Menlo Park, CaliforniaHeadquarters

2021Year Founded

$145.9MTotal Funding

SERIES_ACompany Stage

Consumer Software, AI & Machine Learning, GamingIndustries

51-200Employees

Risks

Legal issues arise from harmful chatbot interactions, impacting company reputation.

AI companions risk contributing to radicalization among young men.

Competitive price dumping in AI model sales threatens profit margins.

Differentiation

Character.AI offers unique virtual characters with distinct personalities for user interaction.

The platform supports diverse applications, from gaming to customer service enhancement.

Character.AI's technology enables realistic and engaging digital interactions.

Upsides

Character.AI benefits from the growing AI market, projected to reach $190.61 billion by 2025.

Google's acquisition highlights Character.AI's cost-efficient AI model operations.

The platform's subscription model ensures steady revenue and continuous client access.

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