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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior AI Engineer - **Company:** Saga Inc - **Location:** Los Altos, CA, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Systems Engineering, Communications Protocols, Distributed Systems, Payment Systems, Python (Programming Language), Machine Learning, Open Source Technology, Performance Tuning, Blockchain, Web Services, Reinforcement Learning, Chatbots, Delivery Pipeline, Large Language Models, Prompt Engineering, Media Technology, Backend, Machine Learning Operations, Virtual Agents, Data Pipelines, Golang - **Published:** June 1, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=e7257d4e62878fb9 ## About the Role Do you have experience in Systems engineering?, * 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, * 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 ## Description As a Senior AI Agent Engineer, you'll be at the center of how we build, train, deploy, and operate character AI agents at scale. You'll work across the full lifecycle - from fine-tuning models and orchestrating SLM swarms to deploying agents across social platforms and building the infrastructure that keeps them running reliably. This role blends ML engineering, backend development, and systems thinking., * 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 ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Chatbots are going to destroy infrastructures and your cloud bills](https://www.wearedevelopers.com/videos/1130-chatbots-are-going-to-destroy-infrastructures-and-your-cloud-bills) - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [One AI API to Power Them All](https://www.wearedevelopers.com/videos/1601-one-ai-api-to-power-them-all) - [Scoring 2000 Products per Request: Performance Pitfalls in Golang](https://www.wearedevelopers.com/videos/2073-scoring-2000-products-per-request-performance-pitfalls-in-golang) - [Testing AI Agents: Automated Evaluation for Chatbots & RAG Systems](https://www.wearedevelopers.com/videos/100300-testing-ai-agents-automated-evaluation-for-chatbots-rag-systems) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [What is Agentic Programming and Why Should Developers Care?](https://www.wearedevelopers.com/magazine/625-what-is-agentic-programming-and-why-should-developers-care) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)