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Character.AI

Platform for creating and chatting with AI-powered characters.

aientertainment

https://character.ai ↗ LinkedIn ↗

Company facts

Acquired-stage

Founded: 2021
Employees: 259
Headquarters: United States
CEO: Noam Shazeer, Daniel De Freitas
Type: Private
Funding: Series A · $150M · 2023

About

Character.ai is an innovative platform that allows users to interact with personalized AI characters tailored for a wide range of interactions. It presents a unique way for individuals to communicate with super-intelligent chat bots that are designed to understand, remember, and engage with users in a meaningful manner. The essence of Character.ai lies in bringing the power of artificial intelligence to the fingertips of users, providing a seamless chat experience. The service is completely free to use and is devoid of any advertisements, ensuring that users can engage with the AI characters without distractions. Whether you are looking for a casual chat, seeking answers to your inquiries, or just want to have fun, Character.ai caters to all these needs. With millions of AI characters available, users have the flexibility to choose and chat with the character that resonates most with their interests and preferences. The platform embodies the future of AI interaction, offering a glimpse into how technology can enhance our everyday communication.

Company facts

Acquired-stage

Founded: 2021
Employees: 259
Headquarters: United States
CEO: Noam Shazeer, Daniel De Freitas
Type: Private
Funding: Series A · $150M · 2023

About

Character.ai is an innovative platform that allows users to interact with personalized AI characters tailored for a wide range of interactions. It presents a unique way for individuals to communicate with super-intelligent chat bots that are designed to understand, remember, and engage with users in a meaningful manner. The essence of Character.ai lies in bringing the power of artificial intelligence to the fingertips of users, providing a seamless chat experience. The service is completely free to use and is devoid of any advertisements, ensuring that users can engage with the AI characters without distractions. Whether you are looking for a casual chat, seeking answers to your inquiries, or just want to have fun, Character.ai caters to all these needs. With millions of AI characters available, users have the flexibility to choose and chat with the character that resonates most with their interests and preferences. The platform embodies the future of AI interaction, offering a glimpse into how technology can enhance our everyday communication.

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16 jobs

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Senior/Staff Software Engineer - Multimodal Backend

Open 38d North AmericaStaff

Builds low-latency audio/video streaming and multimodal backend systems in Go/Python to power real-time AI interactions like phone calls and live video, scaling infrastructure for a fast-growing consumer AI platform.

AI Cassandra Containerization Conversational AI Docker +12 skills

Senior/Staff Backend Engineer — Multimodal AI Infra

Open 38d North AmericaStaff

Builds and scales backend systems for real-time multimodal AI interactions, including audio/video streaming, generative video, and high-availability deployments using Go/Python and cloud-native tools.

AI Cassandra Containerization Conversational AI Docker +12 skills

Senior Backend ML Engineer - Safety & Integrity

Open 38d North AmericaSenior

Designs and builds backend systems that use machine learning to detect and prevent harmful content in AI interactions, primarily with Python or Java.

AI Java Machine Learning Python

Technical Program Manager, Product Experience

Open 68d North AmericaC-level

Character.AI is looking for a high-leverage, force-multiplying Technical Program Manager (TPM) to partner directly with our Chief Product Officer (CPO). In this role, you will operate across the entire product and…

Agentic AI AI Program Management SDLC

Principal Research Engineer, Post-Training

Open 76d North AmericaPrincipal

About the Role and Team As a Principal Research Engineer on the Post-Training team, you will drive the technical vision, execution, and evolution of the systems that transform foundation models into intelligent,…

A/B Testing AI Cloud Cloud Native Data Pipelines +12 skills

Technical Program Manager, Model Alignment and Deployment

Open 86d North AmericaFull-time

About the role Model Alignment and Deployment is a critical, cross-functional effort spanning our Post-Training, Safety Engineering, Trust & Safety, ML Infra/Model Serving, and User Experience Research (UXR) teams.…

AI Backbone.js Cloud Data Pipelines Distributed Training +11 skills

Staff Data Scientist, Monetization

Open 86d HybridNorth AmericaStaff

About the Role: is building the future of open-ended interactions between people and intelligent agents. As our platform scales, so does the opportunity to build sustainable, user-aligned monetization through…

AI Analytics Data Science

Technical Program Manager, AI Infrastructure

Open 86d HybridNorth America

About the Role We’re hiring a Technical Program Manager, AI Infrastructure to lead high-impact programs that power ’s model development and serving systems at scale. In this role, you’ll partner closely with…

AI Automation Cloud Distributed Systems Model Evaluation +1 skills

Software Engineer, Backend/Applied ML (Safety & Integrity)

Open 86d HybridNorth America

About the role We’re looking for a talented and creative Software Engineer to join our Safety Engineering team at ! In this role, you will be at the forefront of designing, developing, and scaling robust backend…

A/B Testing AI Anomaly Detection C++ Data Engineering +6 skills

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

Open 86d HybridNorth America

About the Role As 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…

AI AWS Azure CI/CD Cloud +11 skills

Software Engineer, Backend

Open 86d HybridNorth America

About the Role We are looking for a talented and motivated Backend Engineer to join our team. You will be responsible for building and maintaining scalable, high-performance backend systems that power our products.…

AI API AWS Azure CI/CD +18 skills

Software Engineer, Monetization

Open 86d HybridNorth America

About the Role We are scaling personalized AI to billions of users and monetization is at the core of making this vision sustainable. Our monetization team is reimagining how users interact with virtual currency,…

A/B Testing AI Data Science Go HTML +6 skills

Software Engineer, Core Product

Open 86d HybridNorth America

About the role and team We are building the future of open-ended interactions between people and intelligent agents. This requires rethinking design, user interfaces, workflows and interactivity from first principles.…

Agile AI Design Patterns HTML React +3 skills

Research Engineer, AI Safety & Alignment

Open 86d HybridNorth America

About the role and team Joining us as a Research Engineer, you'll be at the forefront of tackling one of the most critical challenges in AI today: safety and alignment. Your work will be pivotal in understanding…

A/B Testing AI Cloud Data Pipelines Docker +7 skills

Machine Learning Infrastructure Engineer

Open 86d HybridNorth America

About the role We’re looking for seasoned ML Infrastructure engineers with experience designing, building and maintaining training and serving infrastructure for ML research. Responsibilities : Provide infrastructure…

AI Cloud JAX Kubernetes LLM +4 skills

Research Engineer, Post-Training (All Industry Levels)

Open 86d HybridNorth America

About the role and team Joining us as a Research Engineer on the Post-Training team, you'll be diving into the exciting world of fine-tuning AI models, optimizing their performance, and ensuring they meet the…

A/B Testing AI Cloud Data Pipelines Docker +5 skills