Oracle Database Administrator (Infrastructure)

Company Overview: Entre Computer Services is Rochester's leading provider in technology services including Managed Services, IT Infrastructure Engineering & Architecture, Application Development, Hardware & Software Sales, and IT Outsourcing & Recruiting. Entre has been headquartered in Rochester, NY since 1984, and serves organizations both regionally and nationally. Entre is a family-oriented organization that provides great flexibility in professional growth, offers resources for individual success in a team environment, and recognizes the importance of work-life balance.

We are currently hiring for a highly skilled and experienced Oracle Database Administrator with a focus on Infrastructure.

Position Summary
The Senior Oracle Database Administrator is responsible for the administration, performance, reliability, and security of enterprise database platforms supporting critical University systems. This role focuses primarily on Oracle database infrastructure and operations while collaborating with application and infrastructure teams to maintain highly available and optimized database environments.
The position supports approximately 65 Oracle servers (primarily virtual) running Oracle Database 19c with Oracle ASM on Red Hat Enterprise Linux v9. The role will participate in a multi-year initiative to upgrade Oracle Database from 19c to Oracle 26ai. The Oracle environment consists of standalone servers and servers protected by Oracle Data Guard (no RAC environments).
In addition, the DBA team supports approximately 5 PostgreSQL v13 servers and 60 Microsoft SQL Server instances.
Key Responsibilities

• Install, configure, maintain, patch, and upgrade database software.
• Maintain development, test, QA, and production database environments.
• Administer Oracle ASM, Oracle Grid Infrastructure, and Oracle Data Guard.
• Monitor database health, performance, and infrastructure resource utilization.
• Manage database backups, logs, and recovery processes.
• Perform SQL query analysis and tuning using tools such as SQL Performance Analyzer and SQL Tuning Advisor.
• Design and maintain high availability and disaster recovery strategies.
• Support data migrations, database integrations, data modeling, and new application deployments.
• Collaborate with application development teams on database design and best practices.
• Develop scripts and automation to support routine database administration tasks.
• Maintain monitoring systems, alerting, performance metrics, and capacity thresholds.
• Create and maintain documentation including run books, operational procedures, and database inventory.
• Participate in disaster recovery testing, proof-of-concept initiatives, and technical projects.
• Ensure database security, integrity, and adherence to operational standards.

Required Qualifications

• Advanced experience with:
  • Oracle Database (19c or later)
  • Oracle Enterprise Manager
  • Oracle ASM and Grid Infrastructure
  • Red Hat Enterprise Linux
• Strong experience with:
  • Oracle Data Guard
  • SQL performance tuning and query analysis
  • Database patching and lifecycle management
  • Backup and recovery strategies
• Experience writing scripts or automation for database administration tasks.

Preferred Qualifications

• Experience with PostgreSQL and Microsoft SQL Server.
• Familiarity with infrastructure technologies such as shared storage, server virtualization, and monitoring platforms.

Equal Employment Opportunity We're proud to be an equal opportunity employer - and celebrate our employees' differences, including race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, and Veteran status. At Entre, we know that diversity makes us stronger. We are committed to a collaborative, inclusive environment that encourages authenticity and fosters a sense of belonging. We strive for everyone to feel valued, connected, and empowered to reach their potential and contribute their best.