Character.AI

Full-stack Engineer

• 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.
• Partner closely with design and product to create delightful, performant, and trustworthy purchase experiences.
• Collaborate with data science to define monetization success metrics, run experiments, and analyze outcomes.
• Work with backends to design scalable, reliable systems for payments, entitlements, and transactions.
• Maintain a high bar for UI/UX polish, performance, and privacy in sensitive user flows.
• Help shape the company’s approach to monetization experimentation, including frameworks for A/B testing and iteration velocity.

Software Engineer, Monetization

• 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.
• Collaborate closely with the design team to translate visionary concepts into tangible user experiences and product interfaces.
• Establish, evolve, and maintain design foundations, systems, and patterns for the team, setting the bar for product consistency and quality.
• Collaborate with others to define and implement new product features and design patterns

Software Engineer, Core Product

Data Scientist

• Character.AI is building the future of open-ended interactions between people and intelligent agents.
• Seeking a talented and creative Data Scientist to join our team.
• Collaborate closely with Product cross-functional teams.
• Design innovative, user-centered solutions.
• Support our Safety team across various product areas.
• Major focus on our two-side ecosystem of Creators and Users.

Staff Data Scientist, Trust & Safety

Backend Engineer

• 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.
• Optimize system performance, reliability, and scalability through effective architecture and engineering best practices.
• Work closely with product managers, data analysts, and frontend engineers to develop backend solutions that align with business and user needs.
• Ensure high availability, fault tolerance, and performance of backend systems.
• Monitor system health, troubleshoot issues, and implement improvements to enhance efficiency and stability.
• Maintain security best practices to protect user data and system integrity.
• Stay up to date with industry trends and emerging technologies in backend development and distributed systems.

Software Engineer, Backend

• Collaborate closely with Product cross-functional teams to design innovative, user-centered solutions
• Play a pivotal role in shaping the user experience of AI entertainment products
• Work across multiple product areas with a major focus on the two-side ecosystem of Creators and Users
• Help scale Character.AI into its next era through data-driven product work
• Drive high-velocity experimentation and translate findings into actionable next steps
• Stand up data science efforts, including required tools and systems, and work with engineering to execute