Senior Database Engineer — Multi‑Platform & Automation

Lever, Inc.; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Annual bonus opportunity

Job summary

Dun & Bradstreet is recruiting a database administrator in Warsaw to manage a diverse DB estate. You will keep Oracle, SQL Server, PostgreSQL, MySQL and MongoDB healthy, secure and fast, with half time on operations and half on impactful migrations or projects.

You’ll work in a security‑minded environment with ITIL processes, incident handling, and automation using Ansible, Python, and scripting. English fluency is required; Polish locale is beneficial.

Qualifications

• 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.

Responsibilities

• 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.

Skills

Database admin

SQL tuning

Backup & recovery

High availability

Migrations

VMware

Cloud (GCP/AWS)

Scripting

ServiceNow/Jira

English fluency

Tools

Splunk

Zabbix

OpenTelemetry

Ansible

GitHub

NinjaOne

PowerShell

Python

Shell

Job description

Dun & Bradstreet is recruiting a database administrator in Warsaw to manage a diverse DB estate. You will keep Oracle, SQL Server, PostgreSQL, MySQL and MongoDB healthy, secure and fast, with half time on operations and half on impactful migrations or projects.

You’ll work in a security‑minded environment with ITIL processes, incident handling, and automation using Ansible, Python, and scripting. English fluency is required; Polish locale is beneficial.