Character AI
Open positions
Software Engineer, Backend
Compensation: $180k – $300k 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…
Research Engineer AI Safety and Alignment
You will develop safety and alignment evaluations, research alignment, value-learning, and interpretability techniques, and conduct adversarial testing of large language models. You will analyze and mitigate harmful…
Machine Learning Infrastructure Engineer
You will support machine-learning research and products with training and serving infrastructure. You will build tools to diagnose cluster and hardware failures, monitor deployments, manage experiments, and maximize…
Software Engineer Monetization
You will build and optimize mobile and web features for payments, subscriptions, and in-app purchases. You will design monetization experiences, collaborate on trustworthy purchase flows, define metrics and…
Software Engineer Core Product
You will develop visually appealing and high-performance user interfaces for consumer products. You will refine user experiences, translate design concepts into product interfaces, maintain design systems and patterns,…
Software Engineer Backend
You will build, maintain, and optimize scalable backend services that support applications and infrastructure. You will develop secure APIs, improve system reliability and performance, monitor system health,…
Software Engineer Applied ML Discovery Recommendation and Search
You will work with product, data science, and data platform partners to design and implement applied ML models and infrastructure. You will build ML backend systems for recommendation, ranking, and search, including…
Technical Program Manager Model Alignment and Deployment
You will lead cross-functional programs for data collection, annotation, model alignment, safety testing, and model serving. You will coordinate research, safety, infrastructure, and UX workstreams; build evaluation…
Technical Program Manager AI Infrastructure
You will lead planning and execution for AI infrastructure initiatives spanning training, data systems, evaluation, and inference. You will align roadmaps, track infrastructure metrics, improve workflows and tooling,…
Technical Program Manager Product Experience
You will own execution of major initiatives, manage dependencies across product, design, and engineering, and ensure milestones are met. You will synthesize action items, improve SDLC processes, bridge design concepts…
Staff Data Scientist Monetization
You will partner with product and engineering to optimize subscriptions, advertising, and virtual currency economies. You will define success metrics, lead experiments, translate behavioral and economic data into…
Research Engineer (AI Safety & Alignment)
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 and mitigating the risks of…
Backend Software Engineer
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 Collaborating with…
Machine Learning Infrastructure Engineer
Provide infrastructure support to our ML research and product Build tooling to diagnose cluster issues and hardware failures Monitor deployments, manage experiments, and generally support our research Maximize GPU…
Software Engineer (Backend/Applied ML, Safety & Integrity)
In this role, you will be at the forefront of designing, developing, and scaling robust backend systems and leveraging applied machine learning to tackle critical integrity and safety challenges You will be…
Software Engineer (Applied ML, Discovery, Recommendation & Search)
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…
Software Engineer (Core Product)
We’re looking for a Core Product engineer who is genuinely excited about this future and can make significant contributions to our front-end development efforts Develop highly performant, visually appealing, and…
Staff Data Scientist (Monetization)
We are seeking a Staff Data Scientist to partner closely with product, engineering, and growth teams to scale and optimize Character.AI’s monetization systems This role focuses on enabling teams to design, launch, and…
Software Engineer (Monetization)
Our monetization team is reimagining how users interact with virtual currency, subscriptions, and premium features in ways that feel intuitive, rewarding, and fun Build and optimize user-facing features across mobile…