Which tasks were implemented

• Implementation of the application updates in a test environment to check compatibility and functionality
• Applying the updates in the production environment during a scheduled maintenance window to minimize service interruptions
• Checking the application after the update to ensure correct functionality
• Performing a risk analysis and planning for the implementation of operating system updates
• Testing the updates in a separate test environment
• Checking system performance and stability after the update
• Use of tools for automatic monitoring and analysis of log files
• Establishing processes for regularly checking critical log files
• Identification and investigation of anomalies or unusual activities
• Adjustment of system or security settings based on log file analyses
• Regularly checking the backup logs to ensure the completeness and success of the backups
• Performing recovery tests to ensure the reliability of backups
• Adjusting backup strategies based on changes in data volume and importance
• Restoring data from backups in the event of data loss or corruption
• Verification of the integrity and completeness of the restored data
• Documenting the recovery process and analyzing the causes of data loss
• Preparation and adaptation of test data sets that reflect the production environment
• Preparation of detailed reports on work carried out and changes made
• Updating system documentation, operational logs and configuration management databases
• Ensuring that documentation is clear, concise and understandable to other team members
• Planning and implementing routines to clean up temporary files, cache, unneeded log files and other unneeded data
• Monitoring disk space and system resources to avoid performance degradation

Which technologies were used

• Oracle Database 19c
• Oracle SQL and PL/SQL
• Windows Server 2019
• MS Office 365
• ITILv4
• Industry software