Mid-Senior Database Administrator

Job Title: Mid–Senior Database Administrator (DBA)
Location: On-site, Bucharest (5 days/week)
Engagement Type: Freelance / B2B Contract
Experience Level: Mid–Senior (3+ years)

Role Overview

Responsible for the administration, stability, performance, and security of enterprise-grade database environments. The role requires hands-on ownership of production systems, close collaboration with development and infrastructure teams, and on-site availability five days per week.

Key Responsibilities

• Install, configure, upgrade, and maintain database platforms in production and non-production environments
• Ensure high availability, performance, and reliability of databases through proactive monitoring and tuning
• Design, implement, and manage backup, recovery, and disaster recovery strategies
• Diagnose and resolve complex database incidents, performance bottlenecks, and data integrity issues
• Collaborate with application teams on schema design, query optimization, and release support
• Implement and enforce database security, access control, and compliance best practices
• Automate routine DBA tasks and contribute to operational efficiency
• Produce and maintain technical documentation, procedures, and operational runbooks
• Participate in on-call rotation and critical incident response when required

Required Skills & Experience

• Minimum 3 years of hands-on experience as a Database Administrator in production environments
• Strong experience with Oracle Database (11g / 12c / 19c); multi-version environments preferred
• Solid understanding of database architecture, indexing, partitioning, and query optimization
• Proven experience with backup and recovery (RMAN), performance tuning, and troubleshooting
• Strong knowledge of PL/SQL and database-level scripting
• Experience working in Linux/Unix environments
• Ability to work independently and take full ownership of database operations
• Strong analytical, problem-solving, and communication skills
• Professional working proficiency in English

Preferred Qualifications

• Experience with high-availability setups (RAC, Data Guard)
• Exposure to other database technologies (PostgreSQL, SQL Server, MySQL)
• Experience supporting mission-critical or regulated environments
• Familiarity with automation tools and scripting (Shell, Python, Ansible)
• Prior experience working in B2B or consultancy-based engagements

Engagement Details

• Freelance / B2B contractual collaboration
• Full-time availability
• Mandatory on-site presence in Bucharest, 5 days per week
• Long-term engagement with stable workload and clear ownership scope