Backend Infrastructure Engineer

About the Role

This role sits at the core of a high-growth AI data infrastructure platform, owning the systems that keep web extraction fast and reliable against websites actively fighting back. You'll work on adversarial web-extraction infrastructure — anti-bot evasion, proxy rotation, browser/TLS fingerprinting, and CAPTCHA handling — so that the platform "just works" where others fail. You'll own real production systems from day one, not a backlog of tickets.

What You'll Do

• Architect and manage proxy rotation, IP/session management, and egress-node isolation at scale.

• Beat anti-bot and anti-scraping defenses, maintaining high success rates against sites that actively resist automated access.

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

• Own the health, cost efficiency, and economics of the proxy layer end-to-end.

• Debug hard, intermittent adversarial failures across the stack and make them stay fixed.

What We're Looking For

• 0–3 years of backend infrastructure or distributed systems experience, with demonstrated hands-on work in adversarial web-extraction as a dealbreaker requirement.

• Production experience architecting proxy rotation, IP/session management, and egress-node isolation.

• Hands-on experience bypassing aggressive anti-bot and anti-scraping defenses at scale.

• Strong proficiency in Go and/or Python ; TypeScript/Node.js a plus.

• Solid networking fundamentals: TCP/IP, connection pooling, and proxy orchestration.

• Experience with Kubernetes, Docker, AWS, and Terraform for service deployment and scaling.

• Familiarity with PostgreSQL, Redis, and Kafka in production environments.

• Observability experience using Prometheus and Grafana ; comfortable with on-call ownership.

• Relentless about reliability and at home in messy, adversarial problem spaces.

• Authorized to work in the United States without visa sponsorship.

Compensation & Benefits

Salary range: $200,000 – $250,000 USD annually . Visa sponsorship is not available.

Location

Hybrid role based in the San Francisco Bay Area, CA . Candidates in other U.S. locations open to relocating to the SF Bay Area are welcome to apply.