{"id":2725778,"url":"https://alion.io/job/tavily-senior-software-engineer-agentic-search-web-access-engineer-2","title":"Senior Software Engineer (Agentic Search) - Web Access Engineer","company":{"id":6397,"name":"Tavily","domain":"tavily.com","url":"https://alion.io/company/tavily","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":62,"computed_at":"2026-10-22T06:10:10Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Amsterdam, Netherlands","London, United Kingdom","Israel"],"countries":["NL","GB","IL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":84000,"max_usd":163000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":130},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Chrome DevTools","optional":false},{"name":"DNS","optional":false},{"name":"JavaScript","optional":false},{"name":"Playwright","optional":false},{"name":"RAG","optional":false},{"name":"Selenium","optional":false},{"name":"Tavily","optional":false},{"name":"C++","optional":true},{"name":"Go","optional":true},{"name":"Kubernetes","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-10-16T13:43:59Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-10-23T03:26:15Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"About Tavily \nWe'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. \nWe 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. \nThe Role\nWe are looking for a Senior Software Engineer to build the web access infrastructure behind a novel search engine designed for agentic AI.\nIn 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.\nYour responsibilities will include:\nResearch and analyse how modern websites communicate with browsers across the complete request lifecycle\nInvestigate browser fingerprinting, client verification mechanisms, and modern web technologies to enable reliable web access\nBuild tooling for browser instrumentation, debugging, observability, and large-scale experimentation\nTranslate technical research into production systems operating at internet scale\nRequirements\nYou 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:\nBrowser Technologies\nChromium architecture and browser internals\nBrowser lifecycle and navigation\nChrome DevTools Protocol (CDP)\nPlaywright, Puppeteer, Selenium, or similar browser automation frameworks\nBrowser instrumentation and debugging\nWeb Platform\nHTTP/1.1, HTTP/2, HTTP/3 - TLS, DNS, and browser networking\nCookies, browser storage, caching, redirects, and session management\nJavaScript execution and modern client-side rendering\nResource loading, page lifecycle, and browser networking\nBrowser fingerprinting concepts and browser characteristics\nNice to Have\nExperience working on browser engines or browser infrastructure\nExperience reverse engineering browser or web application behaviour\nExperience building internet-scale distributed systems\nGo, C++, Rust, or Python\nKubernetes and cloud infrastructure\nWe conduct coding interviews as part of the process.\n\nWhy Tavily? 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