Senior Software Engineer (Agentic Search) - Web Access Engineer

Status: Open
Remote policy: Not stated
Employment type: Not stated
Salary: Not stated
Categories: Agentic Search
Tech: kubernetes cpp go javascript python rust frontend senior
Source: arbeitnow
First observed: 2026-09-10 08:05 UTC
Last seen: 2026-09-10 09:07 UTC
Source claims posted: 2026-09-10 06:55 UTC
Consecutive misses: 0 of 3

What the posting says

<h3>About Tavily </h3> We're 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.  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 it's powering sales assistants, research copilots, or internal knowledge tools, we're the missing link between LLMs and the real world.  <h3>The Role</h3> We are looking for a Senior Software Engineer to build the web access infrastructure behind a novel search engine designed for agentic AI. In this role, you will investigate how modern websites communicate with browsers and translate that understanding into production systems operating at internet scale. You will build browser infrastructure and tooling that enables reliable, efficient access to web content across a rapidly changing web. Your responsibilities will include: <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Research and analyse how modern websites communicate with browsers across the complete request lifecycle</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Investigate browser fingerprinting, client verification mechanisms, and modern web technologies to enable reliable web access</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Build tooling for browser instrumentation, debugging, observability, and large-scale experimentation</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Translate technical research into production systems operating at internet scale</li> </ul> Requirements You have 5+ years of experience as a software engineer working on production backend or infrastructure systems, and are an expert in several of the following areas: Browser Technologies <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Chromium architecture and browser internals</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Browser lifecycle and navigation</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Chrome DevTools Protocol (CDP)</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Playwright, Puppeteer, Selenium, or similar browser automation frameworks</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Browser instrumentation and debugging</li> </ul> Web Platform <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">HTTP/1.1, HTTP/2, HTTP/3 — TLS, DNS, and browser networking</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Cookies, browser storage, caching, redirects, and session management</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">JavaScript execution and modern client-side rendering</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Resource loading, page lifecycle, and browser networking</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Browser fingerprinting concepts and browser characteristics</li> </ul> Nice to Have <ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1"> <li class="font-claude-response-body whitespace-normal break-words pl-2">Experience working on browser engines or browser infrastructure</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Experience reverse engineering browser or web application behaviour</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Experience building internet-scale distributed systems</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Go, C++, Rust, or Python</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Kubernetes and cloud infrastructure</li> </ul> We conduct coding interviews as part of the process. Why Tavily?  <ul> <li data-leveltext="" data-font="Symbol" data-listid="4" data-list-defn-props="{"335552541":1,"335559683":0,"335559684":-2,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1">Full ownership — small team, you own the entire infrastructure, not a slice of it </li> </ul> <ul> <li data-leveltext="" data-font="Symbol" data-listid="4" data-list-defn-props="{"335552541":1,"335559683":0,"335559684":-2,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="2" data-aria-level="1">Real scaling challenges — bursty scraping workloads, cache invalidation, multi-region, millions of daily requests </li> </ul> <ul> <li data-leveltext="" data-font="Symbol" data-listid="4" data-list-defn-props="{"335552541":1,"335559683":0,"335559684":-2,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="3" data-aria-level="1">AI-native company — your infra directly powers AI agents used by leading companies in the space. </li> </ul>

Find Jobs in United Kingdom on Arbeitnow

Quality

Completeness: 30%

x Salary range stated weight 35%
x Remote policy stated weight 20%
x Location stated weight 15%
+ Organisation stated weight 15%
+ Publication date stated weight 15%

Not enough history yet to judge honesty signals.

Timeline

*
#673086 2026-09-10 08:05 UTC

Published
~
#674469 2026-09-10 09:07 UTC

Modified
- Description
 <h3>About <h3>About <span data-ccp-parastyle="heading...