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, Go, Rust, or Bash.
• Implement and uphold operational security controls across infrastructure and pipelines, including encryption and network segmentation.
• Produce high-quality IP-to-business attribution by combining internet-layer signals such as BGP/ASN changes and DNS patterns.
• Operate, monitor, and continuously improve automated pipelines to ensure accuracy, latency, and reliability.
• Deploy and tune internet-facing infrastructure across bare-metal, VPS, and Cloud environments (GCP).
• 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).
• Strong SQL expertise (preferably PostgreSQL) for complex querying and large-scale data analysis.
• Strong programming and automation skills using Python.
• Deep working knowledge of ASNs, BGP, DNS, routing behavior, and IP geolocation.
• Hands-on experience with Linux fundamentals and bare-metal/VPS infrastructure.
• Familiarity with infrastructure-as-code tools such as Terraform.
• 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.
• Medical, dental, and vision insurance for employees and 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.