Character’s mission is to give everyone on earth access to their own deeply personalized superintell51-200 Employees
- B2C
- Scale StageRapidly increasing operations
- Top InvestorsThis company has received a significant amount of investment from top investors
- Valuation $1B+This company has a valuation of $1B or more
Jobs at Character AI
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Technical Program Manager, Product Experience
NewPosted 2 months ago
Technical Program Manager, Product Experience
- 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.
- Eliminate Blockers: Proactively manage cross-functional dependencies across product, design, and engineering teams. Your primary metric of success is that development is never left stalling for information or decisions.
Redwood City
$200k – $300kEngineering
Principal Research Engineer, Post-Training
NewPosted 2 months ago
Principal Research Engineer, Post-Training
- Technical Leadership & Mentorship: Define and drive the technical roadmap for mid- and post-training systems, balancing research innovation with production reliability and scalability. You will mentor and grow a team of researchers and engineers through technical guidance, design reviews, and career development. Establish best practices for experimentation, model development, and deployment.
Redwood City
$275k – $400kOther
Technical Program Manager, Model Alignment and Deployment
NewPosted 3 months ago
Technical Program Manager, Model Alignment and Deployment
- Program ownership: Lead planning and execution of cross-functional programs spanning data collection, annotation pipelines, alignment workflows (RLHF, DPO, Constitutional AI), safety guardrails (adversarial testing, red-teaming), and model serving. Establish scopes, goals, timelines, risks, and success metrics.
Redwood City
$220k – $260kEngineering
Staff Data Scientist, Monetization
NewPosted 4 months ago
Staff Data Scientist, Monetization
- 7+ years of experience as a Data Scientist working on consumer-facing products, ideally in chat, social, UGC, or entertainment platforms
- Strong intuition for identifying the right questions and quickly driving to high-impact insights
Remote • New York • Redwood City
$250k – $300kOther
Technical Program Manager, AI Infrastructure
NewPosted 4 months ago
Technical Program Manager, AI Infrastructure
- Lead planning and execution of major AI infrastructure initiatives spanning training pipelines, data systems, model evaluation, and inference/serving
- Build structures that keep teams aligned: scopes, goals, requirements, timelines, risks, and success metrics
Remote • Redwood City
$220k – $260kEngineering
Software Engineer, Backend/Applied ML (Safety & Integrity)
NewPosted 8 months ago
Software Engineer, Backend/Applied ML (Safety & Integrity)
- Architect & Build: Design, develop, and maintain highly scalable, resilient, and performant backend systems that power our integrity and safety features.
- Lead Complex Solutions: Lead the technical design and implementation of sophisticated backend solutions for detecting, preventing, and mitigating a wide array of integrity risks. This includes traditional issues (e.g., content classification, spam, etc.) as well as emerging threats related to Generative AI (e.g., misuse of generative models, generation of harmful or biased content, etc).
Remote • Redwood City
$150k – $300kEngineering
Software Engineer, Applied ML (Discovery, Recommendation & Search)
NewPosted 8 months ago
Software Engineer, Applied ML (Discovery, Recommendation & Search)
- B.A.S. in Computer Science or equivalent experience.
- 5+ years of industry experience
Remote • Redwood City
$200k – $300kEngineering
Software Engineer, Backend
NewPosted 9 months ago
Software Engineer, Backend
- Design, develop, and maintain scalable backend services that support our applications and infrastructure.
- Implement secure and efficient APIs to support frontend applications and third-party integrations.
Remote • Redwood City
$180k – $300kEngineering
Software Engineer, Monetization
NewPosted 11 months ago
Software Engineer, Monetization
- Build and optimize user-facing features across mobile and web that power payments, subscriptions, and in-app purchase flows.
- Design and experiment with monetization surfaces, from virtual currency systems to premium upsells to advertising.
Remote • Redwood City
$150k – $300kEngineering
Software Engineer, Core Product
NewPosted 11 months ago
Software Engineer, Core Product
- Develop highly performant, visually appealing, and user-friendly interfaces that push the boundaries of what's possible.
- Enhance and refine our user interface, focusing on engaging our users by fulfilling their needs, desires, and expectations.
Remote • Redwood City
$150k – $300kEngineering
Research Engineer, AI Safety & Alignment
NewPosted 11 months ago
Research Engineer, AI Safety & Alignment
- Develop and implement novel evaluation methodologies and metrics to assess the safety and alignment of large language models.
- Research and develop cutting-edge techniques for model alignment, value learning, and interpretability.
Remote • Redwood City
$225k – $400kEngineering
Machine Learning Infrastructure Engineer
NewPosted 1 year ago
Machine Learning Infrastructure Engineer
- Provide infrastructure support to our ML research and product
- Build tooling to diagnose cluster issues and hardware failures
Remote • Redwood City
$150k – $350kEngineering
Research Engineer, Post-Training (All Industry Levels)
NewPosted 2 years ago
Research Engineer, Post-Training (All Industry Levels)
- Develop alignment algorithms and loss functions to improve data sample efficiency.
- Write data pipelines to process diverse web data into a format models can ingest.
Remote • United States
$225k – $400k