Senior AI Engineer

The Work

• Build and maintain the training and inference pipelines for character AI agents, including LLM/SLM orchestration and swarm-based architectures
• Deploy and operate AI agents across social media platforms (Instagram, X, WhatsApp, TikTok) with consistent character behavior and personality coherence
• Develop tooling for studios and creators to customize agent personality, lore, brand guidelines, and behavioral guardrails
• Build and improve the feedback loops — fine-tuning, reward models, RLHF, and RLAIF — that keep agents improving over time
• Architect and scale the infrastructure supporting agent deployments, including multi-modal capabilities (text, voice, video, livestreaming)
• Contribute to the agentic commerce platform — enabling agents to drive transactions, recommend products, and interact with payment systems
• Implement safety and content moderation systems to ensure agents behave appropriately across diverse user interactions
• Collaborate with studio partners to translate creative direction into agent training parameters and behavioral specifications
• Monitor agent performance, engagement metrics, and behavioral drift in production

Must Have

• 5+ years of backend or ML engineering experience, with hands-on work deploying AI/ML models to production
• Experience with LLM fine-tuning, prompt engineering, and inference optimization
• Strong proficiency in Python; experience with Golang is a plus
• Experience building and operating API services and data pipelines at scale
• Familiarity with reinforcement learning techniques (RLHF, reward modeling) or agent framework development
• Understanding of multi-model architectures — orchestrating multiple models or agents to collaborate on tasks
• Experience deploying applications that integrate with third-party platforms and APIs (social media, messaging, commerce)
• Strong systems thinking — comfortable reasoning about distributed systems, scaling, and reliability
• Exceptional problem-solving and communication skills

Nice to Have

• Experience with character AI, conversational AI, or NPC behavior systems
• Background in gaming, entertainment, or media technology
• Experience with multi-modal AI (voice, image, video generation or processing)
• Familiarity with blockchain infrastructure, on-chain payments, or crypto-native commerce
• Experience with MCP (Model Context Protocol) or agent-to-agent communication protocols
• Understanding of content safety, trust & safety systems, or responsible AI practices
• Contributions to open-source AI/ML projects