ZenRows logo
ZenRows

Turn Any Website Into an API.

Senior Software Engineer - Browser

Full-stack EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1-10Since 2021H1B No SponsorCompany SiteLinkedIn

Location

Worldwide

Posted

2 days ago

Salary

0

Seniority

Senior

Job Description

Senior Software Engineer - Browser

ZenRows

Role Description We’re looking for a Senior Software Engineer to join our Stealth & Reverse Engineering team—the elite force responsible for making our headless browsers and traffic completely undetectable by modern anti-bot systems. - Own and evolve our custom fork of Chromium, continuously identifying and patching all behavioral and fingerprinting vectors that reveal automation. - Go deep into browser internals, reverse engineer anti-bot defenses, and create a fully cloaked browsing experience across real-world targets. - Build internal tools that detect, analyze, and resolve JavaScript-based bot challenges (like fingerprinting, integrity checks, proof-of-work, and obfuscation traps). - Help automate evasions across our infrastructure. This is a deeply technical, adversarial, and high-leverage role at the heart of what makes our scraping infrastructure world-class. We’re a remote-first company with a fast-paced, high-impact culture. In this role, you’ll work closely with our CEO, Aurken, and our Director of Engineering. Qualifications - 5+ years of software engineering with a focus on browsers, reverse engineering, or automation in adversarial environments. - Fluency in C++ and JavaScript (Node or browser), with ability to write clean, testable low-level code. - Deep understanding of Chromium internals: Blink, V8, DevTools Protocol, browser architecture, etc. - Proven experience patching Chromium or building hardened browser automation setups (e.g., stealth plugins, puppeteer-core forks). - Advanced knowledge of JavaScript fingerprinting, detection vectors, and browser inconsistencies. - Familiarity with anti-bot vendors like PerimeterX, Datadome, Kasada, Akamai Bot Manager, and FingerprintJS. - Strong debugging and tooling skills: Chrome DevTools, Wireshark, mitmproxy, Frida, Objection, or similar. - Experience automating evasion workflows and detection pipelines is a major plus. - Excellent communication skills, with the ability to convey complex technical concepts to non-technical stakeholders. Requirements - Be the team’s go-to expert in browser internals, bot detection evasion, and security-focused reverse engineering. - Mentor engineers in topics like V8 internals, JS fingerprinting, and browser automation stealth. - Help define our long-term strategy around browser-level evasion and undetectable scraping at scale. Benefits - 100% remote work: We are a company that offers true freedom. Work wherever life takes you. - The salary you are worth: We never ask people what they are earning, but instead what they are looking for. - The equipment you want: We believe in giving our people the tools they need to succeed. - Generous Learning & Development budget: We believe in always adding value to our top performers. - All-Star Awards: We recognize achievements in many ways within the business. - BitWarden Account: We empower employees with tools to keep passwords secure. - Charity Initiatives: We believe in giving back to the community. - Annual Kick-Off: We want our employees to see where ZenRows was born. - Share in Our Success: We offer opportunities for stock option allocation. - Deel Benefits: We employ our people via Deel, bringing freedom of location and many other benefits.

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