Staff Software Engineer, Enterprise AI
Full-time
Riot Games
Responsibilities
- Build and maintain orchestrator and specialist-agent architectures with retrieval, tool use, structured outputs, and multi-step reasoning.
- Design retrieval and grounding for RAG and semantic search, including embeddings, reranking, evidence citations, and hallucination reduction.
- Integrate AI agents with internal and external tools and APIs to perform actions.
- Build APIs, user interfaces, and full-stack experiences for AI-powered search, chat, and workflows.
- Instrument AI features for quality, safety, reliability, latency, token usage, and cost, and use results to guide iteration.
- Iterate on prompts, model choices, fallback behavior, and evaluation approaches for nondeterministic systems.
- Apply engineering practices including automated testing, code review, CI/CD, monitoring, security, performance work, and on-call ownership.
Requirements
- Bachelor’s degree in Computer Engineering, Computer Science, Information Systems, or a related field, or equivalent professional experience delivering enterprise technology solutions.
- At least 8 years of professional full-stack software development experience.
- End-to-end experience building RAG or agentic systems involving retrieval, tool calling, structured outputs, multi-step reasoning, and verification or evaluation loops.
- Experience designing evaluations using curated datasets, automated metrics, human review, and production feedback.
- Experience establishing AI observability for quality, safety, reliability, latency, token usage, and cost.
- Working knowledge of AI security and responsible-use risks, including prompt injection, tool abuse, data leakage, access control, and model limitations.
- Deep hands-on programming experience with Node, TypeScript, and React.
- Experience with modern frameworks such as NextJS or NestJS.
- Experience building RESTful and GraphQL APIs and working with relational and non-relational databases.
- Comfort with AWS, Docker, Kubernetes, and deployment infrastructure.
- Preferred experience with retrieval-augmented generation, semantic search, embeddings, reranking, grounding, citations, and evaluation.
- Preferred experience with agent platforms such as LangGraph, AutoGen, or CrewAI, vector databases, and multi-agent orchestration.
- Working familiarity with Python, Databricks, Unity Catalog, and lakehouse or data-catalog concepts.
- Experience shipping an internal AI product from scratch in a small, fast-moving team.
Benefits
- Open paid time off policy and flexible work schedules.
- Medical, dental, and life insurance.
- Parental leave for the employee, spouse or domestic partner, and children.
- 401k with company match.
Vacancy posted 10 hours ago
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