Backend Infrastructure Engineer, Anti-Bot

About the Role

Join a team building infrastructure for a web data extraction platform in the AI and SaaS space. You will own production systems that help maintain reliable extraction from websites with sophisticated automated-access defenses.

What You'll Do

• Architect and operate proxy rotation, IP and session management, and isolated egress systems at scale.

• Improve extraction success rates against anti-bot and anti-scraping defenses.

• Build and maintain browser and TLS fingerprint management, CAPTCHA handling, and challenge-solving infrastructure.

• Manage the reliability and cost efficiency of the proxy layer.

• Investigate intermittent failures across the stack and implement lasting fixes.

What We're Looking For

• More than 3 years of experience in adversarial web infrastructure, proxy-layer engineering, or web data extraction at production scale.

• Recent hands-on experience bypassing aggressive anti-bot defenses and ownership of related production success-rate metrics.

• Experience with proxy rotation, IP and session management, egress isolation, browser and TLS fingerprinting, and CAPTCHA or challenge handling.

• Proficiency in Go and/or Python, with strong networking fundamentals including TCP/IP, HTTP/2, connection pooling, and proxy orchestration.

• Experience operating end-to-end production systems, including on-call responsibilities and observability tooling such as Prometheus and Grafana.

• A practical, reliability-focused approach to debugging and iterating on systems in production.

Compensation & Benefits

Base salary is $235,000 to $260,000 USD annually. Visa sponsorship is available.

Location

Hybrid in San Francisco, California, United States.