Lead Technologist, Senior Database Consultant, Automation and IT Operations Expert

4/2016 – offen

• Led transformation of complex IT Operations environment towards DevOps approach
• Administered huge Oracle environment including Exadata, stretched RAC and InMemory systems
• Conducted implementation, configuration and ongoing projects for Oracle and PostgreSQL databases
• Maintained complex PostgreSQL environment, Led PostgreSQL upgrades, patches and delivered high availability solutions
• As performance tuning lead conducted many tuning sessions and made systems running fast
• Prepared and implemented Disaster Recover tests
• Introduced database configuration and management improvements for key components of database infrastructure
• As Lead Ansible Expert designed, built and implemented End to End solutions - fully automated application and database services; designed and delivered best practices and standards)
• Delivered innovative solutions, automated manual tasks reducing operational costs and overtime, eliminated human errors and repetitive tasks
• Mentored and trained engineers in Ansible
• Designed and implemented data visualization and analysis platform for IT infrastructure based on Prometheus and Grafana, automated in Ansible
• Deployed and administered Hortonworks Data Platform (Hadoop)
• Delivered technical presentations and trainings

Oracle-Anwendungen, Postgresql, Ansible

7/2006 – 1/2007

• Provided Day-to-Day maintenance and administration of financial databases
• Designed, implemented and managed asynchronous replication of business data with Oracle Advanced Queuing
• Fully responsible for the development of several smaller projects
• Provided database solutions that enhanced data security
• Designed and implemented backup strategy of production and development systems
• Developed diverse PL/SQL packages according to business requirements
• Conducted database health and performance audits
• Performed database and SQL query tuning that significantly improved system response time

Oracle-Anwendungen, PL/SQL

2/2006 – 4/2016

• Administered large-scale database environments (RDBMS & NoSQL)
• Defined system architecture for applications and other software components
• Lead system architecture for the applications within the boundaries of the enterprise architecture
• Provided innovative solutions to business requirements
• As a leading SQL and database tuning expert provided solutions for application and database performance problems that greatly improved database overall response time
• Provided proactive solutions that enhanced the company’s overall technical capabilities
• Took on new technologies as the company requirements arose
• Created logical and physical data models to optimize application performance
• Conducted key-projects related to Oracle technology including database consolidation, database & application upgrade and migration
• Established processes with QA and R&D to verify that internal requests are handled with the correct priority and properly tested
• Deployed and administered OID directory services, Oracle Grid Control and Nagios
• Designed and implemented backup and recovery solutions for Oracle and PostgreSQL
• Administered EMC Legato NetWorker, DataDomain and IBM TSM
• Involved in capacity planning and data archiving projects
• Developed web-based monitoring application for DBA team
• Provided mentoring for junior members of the team

Oracle-Anwendungen, EMC DataDomain, EMC Networker