Staff Application Engineer

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Staff Application Engineer in USA

Riot Games
Full time
Email

USA
09/19/2026
Report

Los Angeles, CA

Responsibilities

Build and operate Databricks data pipelines using bronze, silver, and gold medallion layers with lineage, provenance, access controls, and logging.
Define domain, ontology, and semantic models in Unity Catalog with subject-matter experts and curate reliable data products.
Implement data quality tests, monitoring, and alerting for pipelines and products.
Integrate enterprise systems through APIs, events, and middleware with authentication, retries, reconciliation, and auditability.
Build production agents and retrieval-augmented applications grounded in governed Databricks data using Unity Catalog functions, Mosaic AI, and model-serving capabilities.
Implement authorization, approvals, auditability, evaluation sets, and observability for agentic and AI-enabled systems.
Apply testing, code review, deployment, documentation, on-call support, and architecture decision-making practices.

Requirements

Bachelor’s degree in a related field or equivalent practical experience.
8+ years of experience in data engineering, software or application engineering, or an adjacent enterprise technology role.
Hands-on experience building production data pipelines with ingestion, semantic or domain modeling, data quality, and lineage.
Hands-on experience with Databricks, including Unity Catalog, medallion architecture, and Mosaic AI or model serving.
Experience shipping production retrieval-augmented, conversational, or agentic AI solutions grounded in data pipelines.
Proficiency in Python and strong software engineering fundamentals, including testing, code review, deployment, and production support.
Experience integrating enterprise systems through APIs, events, or middleware with authentication, retries, reconciliation, and auditability.
Experience with an LLM or cloud AI platform such as Vertex AI, Anthropic, or OpenAI and an automation platform such as Workato, n8n, or Camunda.
Working knowledge of data governance, privacy, and security practices for production data pipelines and products.
Preferred experience includes the Mosaic AI Agent Framework, Unity Catalog functions, enterprise or federated search, vector databases, permission-aware retrieval, LangGraph, Pydantic AI, LangChain, CrewAI, MLflow tracing, dimensional modeling, master data management, enterprise business-system integrations, GCP or AWS data services, dbt, containers, or serverless computing.

Benefits

Open paid time off and flexible work schedules.
Medical, dental, and life insurance.
Parental leave for employees, spouses or domestic partners, and children.
401(k) with company match.

Riot Games

Since 2006, Riot Games has stayed committed to changing the way video games are developed, published, and supported for players. From our first title, League of Legends, to 2020’s VALORANT; we have strived to evolve the community with growth in Esports, and expansion from games into entertainment...

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