Senior Software Engineer (Agentic Search) – Web Rendering Engineer

<p>&nbsp;</p>

<h3><strong><span data-contrast="none"><span data-ccp-parastyle="heading 2">About&nbsp;</span><span data-ccp-parastyle="heading 2">Tavily</span></span></strong><span data-ccp-props="{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:160,&quot;335559739&quot;:80}">&nbsp;</span></h3>

<p><span data-contrast="none">We're&nbsp;building the infrastructure layer for agentic web interaction at scale. Our API is designed from the ground up to power Retrieval-Augmented Generation (RAG) and real-time reasoning in AI systems. By connecting LLMs to high-quality, trustworthy web content, we help developers build agents that are not only intelligent — but also informed.</span><span data-ccp-props="{&quot;335551550&quot;:0,&quot;335551620&quot;:0}">&nbsp;</span></p>

<p><span data-contrast="none">We work with some of the most innovative teams in AI — from small startups shaping the ecosystem to the largest enterprises deploying AI at scale. Whether&nbsp;it's&nbsp;powering sales assistants, research copilots, or internal knowledge tools,&nbsp;we're&nbsp;the missing link between LLMs and the real world.</span><span data-ccp-props="{&quot;335551550&quot;:0,&quot;335551620&quot;:0}">&nbsp;</span></p>

<h3><strong><span data-contrast="auto">The Role</span></strong></h3>

<p><span data-contrast="auto">We are looking for a Senior Software Engineer to build the rendering infrastructure behind a novel search engine designed for agentic AI. In this role, you will design systems that transform modern web applications into high&nbsp;quality structured content for search and AI. You will work on browser rendering, JavaScript execution, and large-scale rendering infrastructure capable of processing billions of pages efficiently. Modern websites increasingly rely on client-side rendering, dynamic data loading, and complex application frameworks. Your work will ensure we can reliably render, understand, and extract valuable information while minimising cost&nbsp;</span><span data-contrast="auto">and latency.&nbsp;<br></span></p>

<p><strong>In this position, your responsibility will be to:</strong></p>

<ul>

<li>Design and build large-scale rendering systems for modern web applications</li>

<li>Develop browser-based rendering infrastructure capable of executing complex JavaScript applications reliably</li>

<li>Research how modern frontend frameworks render and deliver content</li>

<li>Improve rendering quality, completeness, and performance across diverse websites</li>

<li>Optimise rendering cost, latency, resource utilisation, and throughput at internet scale</li>

<li>Translate rendering research into reliable production systems</li>

</ul>

<p><strong>You may be a good fit if you:</strong></p>

<p>Have 5+ years of experience as a software engineer working on production backend or&nbsp;infrastructure systems and are an expert in several of the following areas:</p>

<ul>

<li>Browser Rendering</li>

<li>Chromium rendering pipeline — DOM, Layout, Paint, and Compositing</li>

<li>JavaScript execution inside browsers and rendering lifecycle and page readiness</li>

<li>Headless browser execution and browser instrumentation</li>

<li>Chrome DevTools Protocol (CDP)</li>

<li>Playwright, Puppeteer, Selenium, or similar frameworks Modern Web Applications</li>

<li>React, Vue, Angular, Svelte, and modern frontend architectures</li>

<li>Server-side rendering (SSR), client-side rendering (CSR), and streaming rendering</li>

<li>Single-page applications (SPA) and Progressive Web Apps (PWA)</li>

<li>Resource loading, lazy loading, and modern JavaScript bundles</li>

</ul>

<p><strong>Strong candidates may also have experience with:</strong></p>

<ul>

<li>Building and operating high-throughput content processing pipelines at internet scale</li>

<li>Distributed systems design and performance optimisation</li>

<li>Open-source contributions or active involvement in the engineering community</li>

<li>Conference talks or technical publications</li>

</ul>

<p><span data-ccp-props="{}"><em data-stringify-type="italic">We conduct coding interviews as part of the process.<br></em></span></p>

<p><strong><span data-contrast="none"><span data-ccp-parastyle="heading 2">Why&nbsp;</span><span data-ccp-parastyle="heading 2">Tavily</span><span data-ccp-parastyle="heading 2">?</span></span><span data-ccp-props="{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:160,&quot;335559739&quot;:80}">&nbsp;</span></strong></p>

<ul>

<li data-leveltext="" data-font="Symbol" data-listid="4" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}" data-aria-posinset="1" data-aria-level="1"><strong><span data-contrast="none">Full ownership</span></strong><span data-contrast="none">&nbsp;— small team, you own the entire infrastructure, not a slice of it</span><span data-ccp-props="{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}">&nbsp;</span></li>

</ul>

<ul>

<li data-leveltext="" data-font="Symbol" data-listid="4" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}" data-aria-posinset="2" data-aria-level="1"><strong><span data-contrast="none">Real scaling challenges</span></strong><span data-contrast="none">&nbsp;— bursty scraping workloads, cache invalidation, multi-region, millions of daily requests</span><span data-ccp-props="{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}">&nbsp;</span></li>

</ul>

<ul>

<li data-leveltext="" data-font="Symbol" data-listid="4" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}" data-aria-posinset="3" data-aria-level="1"><strong><span data-contrast="none">AI-native company</span></strong><span data-contrast="none">&nbsp;— your infra directly powers AI agents used by leading companies in the space.</span><span data-ccp-props="{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}">&nbsp;</span></li>

</ul>

<p><span data-ccp-props="{}"><em data-stringify-type="italic">&nbsp;</em></span></p>

<p>&nbsp;</p>

Find more

English Speaking Jobs in United Kingdom

on Arbeitnow