Senior AI Engineer
Senior AI Engineer builds, trains, deploys, and operates character AI agents at scale, managing LLM/SLM pipelines, social platform integrations, and feedback loops. Requires 5+ years in backend/ML engineering with production AI deployment experience.
About the job
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
Skills
Python, Llm Fine-Tuning, RLHF, Prompt Engineering, Data Pipelines, Api Services, Go, Distributed Systems, Multi-Modal Ai, Reinforcement Learning
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