Senior Security Data Engineer

Censys is seeking a Senior Security Data Engineer to enhance our AI/ML models by analyzing large-scale Internet data and developing features, labels, and datasets. This role focuses on transforming raw Internet telemetry into enriched, model-ready data to improve classification and understanding of hosts, services, and infrastructure across the Internet. The position is remote within the United States.

Key responsibilities include analyzing Censys telemetry and derived datasets to identify signals that enhance AI/ML model training for security classifications. The engineer will build and refine training and evaluation datasets using Internet telemetry, curated labels, and analyst-reviewed data. They will drive feature discovery, selection, and labeling strategies for models that classify entities as benign, suspicious, or malicious. Additionally, the role involves collaborating with research and detection teams to translate security domain expertise into actionable workflows and working with ML and software engineers to ensure practical productionization of features and labels.

The ideal candidate has over five years of experience in research or software engineering with a focus on security data. They should possess strong programming skills in Go or Python and experience using SQL or similar tools to analyze large datasets. Strong communication skills are essential for effective collaboration with researchers, ML engineers, software engineers, and other security experts. Comfort with security-relevant data and the ability to apply technical judgment to questions about Internet-exposed hosts, services, and infrastructure are also required.

For high cost of living areas such as San Francisco Bay, New York City, and Seattle, the expected salary range is $180,000 to $212,000 USD, plus bonus eligibility and equity. For other U.S. locations, the range is $153,000 to $180,000 USD, plus bonus eligibility and equity. Benefits are effective on day one and include health, vision, dental, and more.

Censys is committed to creating an inclusive environment for all employees. We value diversity and encourage individuals with disabilities to apply. Reasonable accommodations are provided to ensure equal opportunity in the application process and job performance.