Dun & Bradstreet
Dun & Bradstreet
Dun & Bradstreet provides business decisioning data and analytics to help organizations evaluate commercial risk and identify opportunities. Its business information supports commercial credit decisions, B2B marketing, and supply chain management by bringing together data on companies worldwide. The company is also known for the Data Universal Numbering System (DUNS), a widely used framework for identifying businesses across markets.

Senior Database Infrastructure Administrator - Hybrid in Poland

Senior Database Infrastructure Administrator role at Dun & Bradstreet, supporting a diverse database environment in a hybrid Poland-based position. The work covers secure operations, observability, automation, and database migration initiatives.

Description

  • Manage, optimize, and support production and non-production databases across Oracle, Microsoft SQL Server, PostgreSQL, MySQL, and MongoDB
  • Process incidents, service requests, changes, and vulnerability remediation in ServiceNow according to ITIL practices
  • Develop and enhance database monitoring and observability with Splunk, Zabbix, and OpenTelemetry metrics
  • Automate database patching and provisioning using Ansible, GitHub, and NinjaOne
  • Apply security controls with Imperva, Nessus, and CyberArk in line with ISO 27001, SOX, CIS, and GDPR requirements
  • Contribute to database migration activities across the estate
  • Combine operational support with improvement projects that strengthen the database environment

Requirements

  • At least 3–5 years of hands-on database administration across two or more of Oracle, SQL Server, PostgreSQL, MySQL, and MongoDB
  • Strong SQL capabilities with practical experience in performance tuning, backup and recovery, and high availability
  • Experience or exposure in heterogeneous database migrations; Oracle-to-PostgreSQL or SQL Server migration experience is particularly valuable
  • Comfort working with virtualized environments such as VMware/vSphere, GCP/GCVE, and AWS, alongside Linux and Windows hosts
  • Working knowledge of ServiceNow or Jira and ITIL incident, change, and problem management processes
  • A practical approach to scripting and automation using Ansible, PowerShell, shell scripting, or Python
  • Fluent English; additional European languages are welcome
  • A proactive, curious, accountable approach with strong teamwork skills
  • Cloud database experience with GCP Cloud SQL, AlloyDB, or AWS RDS is desirable
  • Oracle, Microsoft SQL Server, or PostgreSQL certification is desirable
  • Experience with observability tools such as Splunk and Zabbix is desirable

Benefits

  • Dun & Bradstreet benefits package
  • Opportunity to earn an annual bonus of up to 10%

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