About this role
Salary: £60,000 - 100,000 per year
Requirements: Proven experience building agentic AI systems that generate, optimize, and deliver scalable applications in production environmentsStrong software engineering foundation with a track record of shipping reliable, performant systems at scaleDeep familiarity with modern LLM orchestration tools, prompt engineering techniques, and AI/ML frameworksExperience with retrieval-augmented generation (RAG), function/tool calling, and evaluation-driven development for AI agentsProficiency in TypeScript or similar languages, and Python for agent development, scripting, and pipeline automationStrong technical communication skills, root cause analysis abilities, and a proactive mindset with passion for fast iterationA builders mentality, with the ability to create autonomous systems that multiply the impact of entire teams Responsibilities: Apply strong software engineering principles to design, build, and ship reliable, performant systems at scaleBring rigorous software engineering practices, including clean architecture, testing, and code review, to building systems that are reliable and performant at scaleApply sound software engineering fundamentals, including system design, testing, and code review, to ship reliable, performant systems at scaleDesign, build, and deploy agentic AI systems that autonomously generate, test, and optimize BrightScript and TypeScript code and UI experiences for the FRAME engineArchitect multi-agent workflows covering planning, tool-use, retrieval, execution, and validation to accelerate development and reduce manual engineering effort across the teamDevelop AI-powered automation that understands the constraints of embedded C++ environments and produces performance-safe, memory-efficient outputsBuild and maintain evaluation frameworks to measure agent reliability, accuracy, and performance in production-critical contextsCollaborate with cross-functional teams, including firmware, UI, and product, to identify high-impact opportunities for AI-driven automation and intelligent toolingStay at the forefront of agentic AI research, including LLM orchestration, RAG, function calling, and autonomous code generation, and bring those advances into our platformMentor engineers across the team on AI-first development practices and help establish best practices for human-agent collaboration Technologies: Agentic AIAIAI AgentsArchitectBrightScriptEmbeddedFirmwareSupportLLMPythonRAGRokuTypeScriptUX UI DesignClaude CodeCursorFine-tuningJavaScriptLESSMCP More:
We are Roku, the #1 TV streaming platform in the U.S., Canada, and Mexico, and we are working to power every television in the world. Our Device Monetization and Themed Experiences team within the Advertising organization builds the high-performance graphics and UI foundations behind the AD Display, supporting millions of devices worldwide. This role is based in a collaborative, high-trust environment where teams generally work in the office Monday through Thursday, with Fridays typically flexible for remote work except where role or location requirements differ. We offer a comprehensive benefits package that may include healthcare, mental health and financial wellness support, retirement options, leave policies, and other local benefits depending on location. We value a fast-paced, pragmatic culture focused on teamwork, bold thinking, and delivering real solutions to customers.
last updated 36 week of 2026