Senior agentic ai engineer

Requirements

• Proven experience building agentic AI systems that generate, optimize, and deliver scalable applications in production environments
• Strong software engineering foundation with a track record of shipping reliable, performant systems at scale
• Deep familiarity with modern LLM orchestration tools, prompt engineering techniques, and AI/ML frameworks
• Experience with retrieval‑augmented generation (RAG), function/tool calling, and evaluation‑driven development for AI agents
• A builder's mentality — you don't just use AI tools, you create autonomous systems that multiply the impact of entire teams
• Proficiency in TypeScript (or similar languages) and Python for agent development, scripting, and pipeline automation
• A software engineer's instinct for reliability, testability, and clean architecture — applied to the unique challenges of non-deterministic AI systems
• Excellent technical communication, root cause analysis abilities, and a proactive mindset with passion for fast iteration

What the job involves

• At Roku, the Device Monetization and Themed Experiences (DMTE) team, a part of the Advertising organization, is where the magic behind the scenes happens
• We're the engineers who build the high-performance graphics and UI foundations that power the FRAME engine — the core technology enabling Roku's smooth, responsive, and visually rich experiences on millions of devices worldwide
• As a Senior Agentic AI Engineer in the DMTE team, you'll be the driving force behind embedding intelligent, autonomous AI capabilities into Roku's platform — reimagining how our systems create, optimize, and deliver experiences to tens of millions of devices
• Rather than building UI features directly, you'll design and deploy agentic AI systems that reason, plan, and act across our development and delivery pipelines — from automating the generation of themed experiences to enabling self‑optimizing rendering workflows within the FRAME engine
• You'll leverage your years of experience in software engineering and building world class UI to build AI agents that understand the constraints of embedded, performance‑critical systems and operate effectively within them
• This is a role for engineers who think in terms of autonomous systems, multi‑step reasoning, and tool‑use architectures — and who want to fundamentally reshape how a streaming platform is built, maintained, and evolved
• Design, build, and deploy agentic AI systems that autonomously generate, test, and optimize BrightScript/TypeScript code and UI experiences for the FRAME engine
• Architect multi‑agent workflows (planning, tool‑use, retrieval, execution, validation) that accelerate development and reduce manual engineering effort across the team
• Develop AI‑powered automation that understands the constraints of embedded C++ environments and produces performance‑safe, memory‑efficient outputs
• Build and maintain evaluation frameworks to measure agent reliability, accuracy, and performance in production‑critical contexts
• Collaborate with cross‑functional teams (firmware, UI, product) to identify high‑impact opportunities for AI‑driven automation and intelligent tooling
• Stay at the forefront of agentic AI research — including LLM orchestration, RAG, function calling, and autonomous code generation — and bring those advances into our platform
• Mentor engineers across the team on AI‑first development practices and help establish best practices for human‑agent collaboration