Character AI jobs

Technical Leadership & Mentorship: Define and drive the technical roadmap for mid- and post-training systems, balancing research innovation with production reliability and scalability.

• Degree or equivalent experience
• Apply on company site

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.

• Degree or equivalent experience
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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 highest standards of quality and efficiency.

• Degree required
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We’re looking for seasoned ML Infrastructure engineers with experience designing, building and maintaining training and serving infrastructure for ML research.

• 4+ years experience
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Character.AI 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 subscriptions, advertising, and virtual currency economies.

• 7+ years experience
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Operational Rigor & Technical Execution. Keep the Trains Running on Time: Own the end-to-end execution of major initiatives under the CPO's umbrella, ensuring critical product, design, and engineering milestones are hit without friction.

• Apply on company site

• Benefits
• Equity

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 optimization, data pipeline to model training and serving infrastructure, on one…

• 5+ years experience
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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.

• 5+ years experience
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We’re looking for a talented and creative Software Engineer to join our Safety Engineering team at Character.AI !

• 8+ years experience
• Degree required
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We are scaling personalized AI to billions of users and monetization is at the core of making this vision sustainable.

• Apply on company site