Principal Systems Engineer

Responsibilities

• Own the end-to-end technical execution of the IP-to-DUNS mapping lifecycle, including data ingestion, normalization, and validation.
• Write, review, and maintain data-processing and automation code using Python and other relevant languages.
• Implement and uphold operational security controls across infrastructure and pipelines.
• Operate, monitor, and continuously improve automated pipelines to ensure accuracy, latency, and reliability.
• Maintain systems that track IP block changes and infrastructure volatility, such as BGP and ASN shifts.
• Deploy and tune internet-facing infrastructure across bare-metal, VPS, and cloud environments.
• Provide task-level leadership and subject-matter guidance to junior engineers and analysts.

Requirements

• 10+ years of experience in internet infrastructure, IP intelligence, or network/systems engineering.
• Extensive experience deploying and securing data engineering workloads on Cloud platforms (AWS, Azure, or GCP).
• Proficiency with Infrastructure-as-Code tools, specifically Terraform.
• Strong SQL expertise (preferably PostgreSQL) for large-scale data analysis.
• Strong programming and automation skills using Python.
• Hands-on experience with Linux fundamentals and managing bare-metal or VPS infrastructure.
• Deep knowledge of ASNs, BGP, DNS, routing behavior, and IP geolocation.
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field.

Preferred Qualifications

• Master's degree in a related technical field.
• Experience with Go, Rust, or Bash.

Benefits

• Generous paid time off and paid sick time.
• Up to 16 weeks of 100% paid parental leave after one year of employment.
• Competitive 401k with company matching.
• Comprehensive medical, dental, and vision insurance for you and your dependents.
• Education assistance and extensive training resources.
• Paid volunteer days and donation matching through the Do Good Program.

About the Company

Dun & Bradstreet is a global leader in business decisioning data and analytics. For over 180 years, businesses have trusted us to turn uncertainty into opportunity by helping companies worldwide grow, manage risk, and innovate.