Senior Software Engineer, Machine Learning
RokuCambridge, United KingdomPosted 24 February 2026
Job Description
<div class="content-intro"><h2 style="font-family: GothamBold,Helvetica,Arial,sans-serif; color: #662d91;">Teamwork makes the stream work.</h2>
<p> </p>
<h3 style="font-family: GothamBold,Helvetica,Arial,sans-serif;"><strong>Roku is changing how the world watches TV</strong></h3>
<p>Roku 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. Roku 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.</p>
<p>From your first day at Roku, 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.</p>
<p> </p></div><h3><strong>About the team</strong></h3>
<p><span class="TextRun SCXW26497193 BCX0" lang="EN-US" data-contrast="none"><span class="NormalTextRun SCXW26497193 BCX0">The Advertising Performance group focuses on performance for all participants in the Advertising ecosystem - Advertisers, </span><span class="NormalTextRun SCXW26497193 BCX0">Publishers</span><span class="NormalTextRun SCXW26497193 BCX0"> and Roku. The systems and solutions span across different disciplines and technologies to perform </span><span class="NormalTextRun SpellingErrorV2Themed SCXW26497193 BCX0">realtime</span><span class="NormalTextRun SCXW26497193 BCX0"> multi-</span><span class="NormalTextRun SCXW26497193 BCX0">objective</span><span class="NormalTextRun SCXW26497193 BCX0"> optimization with distributed systems at large scale and low latencies. We use Machine Learning, Reinforcement Learning, AI, Control and Optimization </span><span class="NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW26497193 BCX0">Systems</span><span class="NormalTextRun SCXW26497193 BCX0"> and Auction Dynamics to solve a large set of complex problems. At the core of this is our Machine Learning</span><span class="NormalTextRun SCXW26497193 BCX0">, Experimentation</span><span class="NormalTextRun SCXW26497193 BCX0"> and Inference Platform that powers the entire landscape</span><span class="NormalTextRun SCXW26497193 BCX0"> which we continuously evolve over time.</span></span><span class="EOP SCXW26497193 BCX0" data-ccp-props="{}"> </span> </p>
<h3><strong>About the role</strong></h3>
<p><span data-contrast="none">In this role you will work on applying SOTA research and conduct your own research to develop novel methodologies to solve a large variety of challenging problems in Advertising related to conversion modeling aligned with attribution methodologies/models, calibration, dynamic creative generation and optimization, forecasting and timeseries modeling, yield and margin optimization and Experimentation for A/B and multivariate testing.</span><span data-ccp-props="{"335557856":16777215}"> </span></p>
<p><span data-contrast="none">We’re looking for a strong technical leader with a solid grasp of core statistical techniques and deep experience in SOTA Deep Learning discriminative and generative models.</span><span data-ccp-props="{"335557856":16777215}"> </span></p>
<h3><strong>What you will be doing</strong></h3>
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1"><span data-contrast="none">Applying existing and conducting your own research to build SOTA Deep learning discriminative models and build generative models to create image and video ads geared towards optimizing performance.</span> </li>
<li data-leveltext ... (truncated, view full listing at source)
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