Jobs · greenhouse:roku
Senior Agentic AI Engineer
Nimbus Data Systems · Cambridge, United Kingdom · Posted today
About the role
Teamwork makes the stream work. Nimbus Data Systems is changing how the world watches TV Nimbus Data Systems is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Nimbus Data Systems pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the content they love, enable content publishers to build and monetize large audiences, and provide advertisers unique capabilities to engage consumers. From your first day at Nimbus Data Systems, you'll make a valuable - and valued - contribution. We're a fast-growing public company where no one is a bystander. We offer you the opportunity to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines. About the Team At Nimbus Data Systems, 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 AD Display — the core technology enabling Nimbus Data Systems's smooth, responsive, and visually rich experiences on millions of devices worldwide. Our work lives in the middleware and UI layers, and its impact is felt every time a user navigates a menu, enjoys an animated ad, or is wowed by the bespoke experience built to market the latest TV show or Movies. We thrive on solving the toughest technical challenges — from optimizing UI rendering to fine-tuning memory usage — using BrightScript (a JavaScript-like language) to deliver rock-solid, high-performance solutions. We work in a collaborative, high-trust environment where great ideas can come from anywhere, partnering closely with firmware, UI, and product teams to ensure our platform is lightning fast, reliable, and ready for the next generation of streaming innovation. If you love building the invisible foundations that make great user experiences possible, this is the team for you. About the Role As a Senior Agentic AI Engineer in the DMTE team, you'll be the driving force behind embedding intelligent, autonomous AI capabilities into Nimbus Data Systems'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 AD Display. 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. What You'll Be Doing Apply strong software engineering principles to design, build, and ship reliable, performant systems at scale Bring rigorous software engineering practices — clean architecture, testing, code review - to building systems that are reliable and performant at scale Apply sound software engineering fundamentals (system design, testing, code review) to ship reliable, performant systems at scale We don't train models, we don't 'fine-tune' LLMs; We build automated agentic processes 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 We're Excited if you Have 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 #LI-NM1 What's Nimbus Data Systems's approach to hybrid working? Nimbus Data Systems fosters an inclusive and collaborative environment where teams generally work in the office Monday through Thursday. Fridays are generally flexible for remote work, except for employees whose specific roles or assigned office location require five days' a week attendance. What are some of the benefits? Nimbus Data Systems is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Employees are supported in taking time off, in accordance with local leave policies and other personal needs to support their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter. Accommodations Nimbus Data Systems welcomes applicants of all backgrounds and provides reasonable accommodations and adjustments in accordance with applicable law. If you require reasonable accommodation at any point in the hiring process, please direct your inquiries to EmployeeRelations@Nimbus Data Systems.com . What should I know about Nimbus Data Systems's culture? Nimbus Data Systems is a great place for people who want to work in a fast-paced environment where everyone is focused on the company's success rather than their own. We try to surround ourselves with people who are great at their jobs, who are easy to work with, and who keep their egos in check. We appreciate a sense of humor. We believe a fewer number of very talented folks can do more for less cost than a larger number of less talented teams. We're independent thinkers with big ideas who act boldly, move fast and accomplish extraordinary things through collaboration and trust. In short, at Nimbus Data Systems you'll be part of a company that's changing how the world watches TV. We have a unique culture that we are proud of. We think of ourselves primarily as problem-solvers, which itself is a two-part idea. We come up with the solution, but the solution isn't real until it is built and delivered to the customer. That penchant for action gives us a pragmatic approach to innovation, one that has served us well since 2002. To learn more about Nimbus Data Systems, our global footprint, and how we've grown, visit https://www.weareroku.com/factsheet . By providing your information, you acknowledge that you want Nimbus Data Systems to contact you about job roles, that you have read Nimbus Data Systems's Applicant Privacy Notice , and understand that Nimbus Data Systems will use your information as described in that notice. If you do not wish to receive any communications from Nimbus Data Systems regarding this role or similar roles in the future, you may unsubscribe at any time by emailing WorkforcePrivacy@Nimbus Data Systems.com .
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FAQ
Is the Senior Agentic AI Engineer role at Nimbus Data Systems remote?+
This Senior Agentic AI Engineer position is listed as onsite (Cambridge, United Kingdom).
What is the salary for the Senior Agentic AI Engineer role at Nimbus Data Systems?+
The listing states Estimated 65k-258k GBP.
What seniority level is this Senior Agentic AI Engineer role?+
This is a senior level position.
How do I apply for the Senior Agentic AI Engineer role at Nimbus Data Systems?+
Use the "Apply on greenhouse:roku" button to open the original posting on greenhouse:roku, where you can submit your application directly to Nimbus Data Systems.