Senior AI Engineer

Saga is building AI agents for studios, creators, and publishers. The Senior AI Agent Engineer will build, train, deploy, and operate character AI agents at scale, spanning model fine-tuning, agent infrastructure, social-platform integrations, and reliability.

Responsibilities:

• 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