Senior Browser Automation Engineer

About Deck

Deck is building the data infrastructure for the internet. We make scattered, login-protected data instantly accessible through clean APIs and integrations—empowering businesses to act fast and smart, with no friction.

great ideas need great data

About the Role

As a Senior Browser Automation Engineer, you will be the architect of the custom browser infrastructure that powers our data aggregation engine. We strictly operate under authenticated portals, meaning our agents face some of the most sophisticated security and bot detection systems in the world. Your primary challenge will be to build a robust, Chromium-based environment where maintaining a consistent and authentic browser fingerprint is paramount. You will ensure our AI agents can reliably access, navigate, and operate within these high-security environments at scale.

What You'll Do

• Browser Infrastructure Development:Build and maintain a custom Chromium fork optimized for heavy data aggregation workloads within authenticated sessions.
• Fingerprint Consistency & Management:Design and implement advanced systems to generate and maintain highly consistent browser fingerprints. This is a key performance indicator, as our agents must maintain persistent, trusted identities to operate effectively within authenticated portals.
• Detection Resilience:Engineer solutions to bypass world-class security systems. You will deep-dive into modern detection mechanisms to ensure our automation is indistinguishable from human behavior.
• Automation Framework Development:Extend browser automation APIs (CDP, WebDriver) to support complex, stateful interactions required for navigating authenticated workflows.
• Performance & Scalability:Optimize browser instances for high-reliability headless operation, ensuring stability during long-running data extraction sessions.

Browser Infrastructure Development:

Fingerprint Consistency & Management:

Detection Resilience:

Automation Framework Development:

Performance & Scalability:

Required Qualifications

• 5+ years of experiencein browser engineering, web security, or related fields.
• Deep understanding of Chromium/Chrome architectureand internals (Blink, V8, network stack).
• Strong proficiency in C++and experience working with large codebases.
• Expertise in browser fingerprinting techniques(Canvas, WebGL, AudioContext, Navigator APIs) and counter-fingerprinting strategies.
• Knowledge of web security mechanisms, advanced bot detection systems, and behavioral analysis.
• Experience with browser automation tools(Puppeteer, Playwright, Selenium, CDP).
• Strong problem-solving skillsand ability to reverse-engineer complex security systems.

5+ years of experience

Deep understanding of Chromium/Chrome architecture

Strong proficiency in C++

Expertise in browser fingerprinting techniques

Knowledge of web security mechanisms

Experience with browser automation tools

Strong problem-solving skills

Preferred Qualifications

• Previous experience working on browser forks or modifications.
• Background in web security research or red team experience.
• Familiarity with ML-based detection systems.
• Experience with proxy infrastructure and network-level fingerprinting.
• Contributions to open-source browser automation projects.

Previous experience working on browser forks or modifications.

Background in web security research or red team experience.

Familiarity with ML-based detection systems.

Experience with proxy infrastructure and network-level fingerprinting.

Contributions to open-source browser automation projects.

Tech Stack

C++, JavaScript/TypeScript, Python, Chromium, V8, Blink, CDP (Chrome DevTools Protocol), WebDriver, Node.js

Why Join Deck?

• Competitive payfor the right skills
• Proven leadershipwith a track record of big results
• Significantownership and autonomyin how you operate
• A team of exceptional peers tackling complex, high-leverage problems
• Momentum: recentfundraise by top-tier investors, massive whitespace, and accelerating traction

Competitive pay

Proven leadership

ownership and autonomy

A team of exceptional peers tackling complex, high-leverage problems

fundraise by top-tier investors

Deck isn’t just a product—it’s a mission. We believe that businesses should spend more time thinking and building, and less time wrestling with data plumbing. If that vision excites you, and you’re energized by early-stage speed, ambiguity, and intensity—let’s talk.