Senior Oracle Database and Linux Administrator - Freelance

Description

Key Responsibilities

Oracle Database Administration

• Administer and maintain Oracle databases (Oracle 19c and later)
• Monitor database health, availability and performance
• Perform database tuning and performance optimization
• Implement and manage Oracle security configurations
• Install, test and deploy Oracle patches and upgrades
• Manage database storage structures and capacity planning
• Support database migrations and infrastructure changes
• Define and maintain database standards and best practices
• Manage and monitor Oracle licensing compliance
• Participate in disaster recovery and business continuity planning

Backup & Recovery

• Define and maintain backup strategies using RMAN
• Perform backup monitoring and validation
• Execute restore and recovery procedures
• Conduct regular disaster recovery tests
• Maintain recovery documentation and procedures

SQL / PL-SQL Development Support

• Support development teams using Oracle databases
• Assist in SQL query optimization and troubleshooting
• Review and improve PL/SQL code performance
• Support releases and deployments involving database changes
• Provide technical guidance to developers and application owners

Linux Infrastructure Administration

• Manage Red Hat Enterprise Linux environments
• Install security and operating system updates
• Administer storage at operating system level
• Manage LVM configurations and file systems
• Monitor server performance and capacity
• Perform troubleshooting of Linux-based application environments
• Support server lifecycle management and migration activities
• Automate recurring tasks using shell scripting

Application & Infrastructure Support

• Support business-critical applications running on Oracle and Linux platforms
• Collaborate with application owners and infrastructure teams
• Participate in incident resolution and root cause analysis
• Support infrastructure modernization and cloud transformation projects
• Ensure compliance with cybersecurity and operational standards

Required Technical Skills

Database Technologies
Mandatory:

• Oracle Database 19c or newer
• Oracle Database Administration
• RMAN Backup & Recovery
• Oracle Performance Tuning
• SQL
• PL/SQL
• Oracle Security Management
• Oracle Patch Management

Nice to Have:

• PostgreSQL Administration
• PostgreSQL Monitoring & Performance Tuning

Linux Technologies
Mandatory:

• Red Hat Enterprise Linux
• Linux Server Administration
• Shell Scripting (Bash)
• LVM
• Linux Storage Management
• Performance Analysis & Monitoring
• Patch Management
• System Troubleshooting

Nice to Have:

• Oracle Linux
• Virtualization technologies
• Infrastructure monitoring solutions
• Automation tools

Experience Required

• Minimum 5 years of Oracle Database Administration experience
• Minimum 5 years of Linux System Administration experience
• Experience with production critical environments
• Experience in backup, recovery and disaster recovery testing
• Experience supporting development teams
• Experience in performance tuning and troubleshooting
• Experience with infrastructure upgrades and migrations

Soft Skills

• Strong analytical and problem-solving skills
• Ability to work autonomously
• Strong documentation skills
• Customer and service-oriented mindset
• Ability to interact with technical and non-technical stakeholders
• Strong communication skills
• Ability to manage priorities in a complex environment

Success Criteria

The successful candidature will:

• Ensure availability and performance of Oracle databases
• Maintain secure and compliant Linux environments
• Support critical business applications with minimal downtime
• Improve automation and operational efficiency
• Support a leading energy company’s modernization and cloud transformation roadmap
• Contribute to knowledge sharing and operational resilience across the IT team

Location: La Garenne-Colombes