Über diese Senior Database Infrastructure Administrator (R-19958) Stelle bei Dnb
Dnb · Hybrid · Warsaw - Poland
Shape the Future with Dun & Bradstreet
At Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. Since 1841, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers.
About the role
We run one of the most diverse database estates in the business, spanning Oracle, Microsoft SQL Server, MySQL, PostgreSQL and MongoDB, hosted across multiple data centres
You'll keep this estate healthy, secure and fast, and you'll play a real part general migration efforts. This isn't a "keep the lights on and nothing else" job. Half your time is operations, half is projects that actually move the needle.
What you'll actually do
- Administer, tune and support production and non-production databases across Oracle, MS SQL Server, PostgreSQL, MySQL and MongoDB.
- Handle incidents, service requests, change requests and vulnerability remediation through ServiceNow, following ITIL practice.
- Build and improve monitoring and observability using Splunk, Zabbix and OpenTelemetry-based database metrics.
- Automate the boring stuff, patching and provisioning via Ansible, GitHub and NinjaOne.
- Work security-first: Imperva, Nessus, CyberArk, and alignment with ISO 27001, SOX, CIS and GDPR controls.
What you bring
- 3–5+ years hands-on database administration across at least two of: Oracle, SQL Server, PostgreSQL, MySQL, MongoDB.
- Solid SQL skills and real experience with performance tuning, backup/recovery and high availability.
- Exposure to heterogeneous database migrations (Oracle to PostgreSQL/SQL Server is a big plus).
- Comfort in virtualised environments (VMware/vSphere, GCP/GCVE/AWS) and mixed Linux/Windows hosting.
- Working knowledge of ServiceNow and/or Jira, and ITIL processes (incident, change, problem).
- Scripting and automation instincts (Ansible, PowerShell, shell, Python).
- Fluent English; other European languages welcome.
- An ownership mindset, curious, proactive, and a genuine team player.
Nice to have
- Cloud database exposure (GCP Cloud SQL / AlloyDB, AWS RDS).
- Certifications in Oracle, Microsoft SQL Server or PostgreSQL.
- Experience with observability tooling (like Splunk & Zabbix).
Pursuant to Polish pay transparency requirements, candidates will receive information about remuneration for this position at the appropriate stage of the recruitment process and before employment is established. Actual compensation decisions for base salary and other compensation will be dependent upon a wide range of factors including but not limited to: an individual’s skill sets, experience, qualification, training, education, location, and any other legally permissible factors. Successful applicants will also be eligible for D&B’s benefit package.
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