Freelancer profile translated to English.
Back to original languageAbout Patrick
As an experienced IT freelancer and Database Administrator, I support companies in building, operating, and strategically modernizing scalable data platforms – both on-premises and in cloud environments.
My focus is on high-performance Oracle database architectures, high availability, performance optimization, automation, and secure migrations. Additionally, I bring profound expertise in data engineering to efficiently implement modern data pipelines and robust data integrations.
What sets me apart: deep operational database expertise, clear and sustainable architectures, and structured collaboration with development and business departments. Knowledge transfer is an integral part of this – for solutions that last in the long term.
German
Native or bilingual
English
Native or bilingual
Can work on-site
München (up to 50km)
Experience
- msg Systems AG,Oracle DBADIGITAL AND ITAugust 2020 - June 2024 (3 years and 10 months)Ismaning, BY, Germany
- Oracle DB administration and upgrades up to 19c
- Review and optimization of operational, security, and licensing concepts
- Execution of several database migrations
- Planning and implementation of migrations from Oracle to PostgreSQL
- Cronon GmbH,DB ConsultantTELECOMMUNICATIONSFebruary 2021 - March 2023 (2 years and 1 month)Berlin, Germany
- Administration and operation of PostgreSQL 13–15
- Performance optimization of customer environments
- High availability and migration concepts
- Automated installations with Ansible
- ITZBundOracle DBAPUBLIC SECTORJune 2023 - April 2024 (10 months)Nürnberg, Germany
- Operation and monitoring of Oracle databases (10g–19c)
- Development of standardized installation packages (Golden Images)
- Automated rollouts with Enterprise Manager Grid Control
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Education
- Oracle Certified Professional (OCP) – 10g to 19c Oracle Certified Expert – Performance Tuning Oracle Certified Expert – RAC and Grid Infrastructure AdministratorOracle Certified Professional (OCP) – 10g to 19c Oracle Certified Expert – Performance Tuning Oracle Certified Expert – RAC and Grid Infrastructure Administrator
- Project Management: PRINCE2 Foundation & PractitionerProject Management: PRINCE2 Foundation & Practitioner
Certifications
- Oracle Certified Professional (OCP)Oracle Corporation
- Oracle Certified Expert – Performance Tuning – RAC and Grid Infrastructure AdministratorOracle Corporation