Responsibilities include:

The Oracle DBA – Mid Level will have the following responsibilities:
Database administration: Installing, configuring and maintaining Oracle databases, ensuring their performance, security and availability.

Backup and Recovery: Developing, implementing and testing backup and recovery strategies to ensure data protection.

Performance Tuning: Monitoring and optimizing database performance, using tools such as SQL tuning and database management tools.

Security Management: Implementing and maintaining database security, including creating and managing users, roles, and permissions.

Database Maintenance: Applying patches and upgrades, performing database migrations and maintaining database documentation.

Troubleshooting: Identifying and resolving database issues in a timely manner.

Capacity Planning: Planning and managing database resources, including disk space, memory and CPU utilization.

Collaboration: Working closely with development teams to ensure that database design and administration support application requirements.

Requirements : 

The Oracle DBA – Mid Level should fulfil the following requirements:
A bachelor’s degree in computer science, engineering or a related field.

3+ years of experience as an Oracle DBA.

Strong knowledge of Oracle database administration, backup and recovery, performance tuning and security management.

Experience with SQL and PL/SQL programming.

Familiarity with Unix/Linux operating systems.

Good verbal and written communication skills.