Oracle DBA

Quantum Technologies. LLC; Houston (TX); On-site; USD 102,000 - 146,000; Full time

Job summary

Quantum Technologies LLC seeks an experienced Oracle Database Administrator to manage enterprise Oracle databases in a Houston environment. The role focuses on performance tuning, backup and recovery, high availability, upgrades, and security across RAC and Data Guard setups.

The ideal candidate will have hands-on expertise with Oracle 12c-21c, OEM monitoring, and cloud familiarity, including OCI or Exadata, and will collaborate with developers and infra teams to ensure data integrity.

Qualifications

• Bachelor's degree in Computer Science, IT, or related field.
• Master's degree preferred.
• 8+ years in Oracle DBA
• Strong RAC, ASM, Data Guard, and RMAN experience.

Responsibilities

• Install, configure, administer, and maintain Oracle database environments.
• Monitor health, availability, performance, and resource utilization.
• Perform performance tuning and troubleshooting of slow queries.
• Manage Oracle RAC, ASM, and Data Guard configurations for high availability.
• Develop and maintain RMAN backup, recovery, and DR strategies.
• Upgrade, patch, migrate, and refresh environments.
• Configure replication with Oracle GoldenGate.
• Ensure security, access controls, and auditing.
• Automate routine DBA tasks with shell scripting.

Skills

Oracle DBA

Linux/Unix

Shell scripting

Performance tuning

Data Guard

RMAN

GoldenGate

Education

Bachelor's degree

Master's degree

Tools

Oracle OEM

Oracle GoldenGate

RMAN

Data Guard

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title: Oracle Database Administrator (Oracle DBA)

Location: Houston, TX

Duration: 12 Months + Extension

Bill Rate: $90/hr C2C

Job Type: W-2, 1099, C2C

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Position Overview:

The Oracle DBA will be responsible for managing, maintaining, securing, and optimizing enterprise Oracle database environments. The ideal candidate will have strong hands‑on experience with Oracle database administration, performance tuning, backup and recovery, high availability, and database upgrades. This role involves supporting mission‑critical database systems, ensuring data integrity, troubleshooting complex database issues, and maintaining highly available and scalable database infrastructure.

Oracle DBA Technologies & Technical Expertise:

Strong experience with Oracle Database 12c, 18c, 19c, and 21c.

Proficiency in SQL, PL/SQL, stored procedures, functions, packages, triggers, and views.

Hands‑on experience with Oracle Real Application Clusters (RAC) and Automatic Storage Management (ASM).

Strong knowledge of Oracle Data Guard, Active Data Guard, and disaster recovery solutions.

Experience with RMAN backup, restore, recovery, and database cloning.

Expertise in database performance tuning, SQL optimization, execution plans, and indexing strategies.

Experience with Oracle Enterprise Manager (OEM) for database monitoring and administration.

Knowledge of Oracle GoldenGate for data replication and synchronization.

Experience with database installation, configuration, patching, upgrades, and migrations.

Understanding of Oracle architecture, memory management, tablespaces, datafiles, and redo/undo management.

Experience with database security, user management, roles, privileges, encryption, and auditing.

Proficiency in Linux/Unix administration and shell scripting.

Familiarity with Oracle Cloud Infrastructure (OCI), Exadata, and cloud database services.

Knowledge of automation tools, scripting, and database monitoring utilities.

Key Oracle Database Administration Responsibilities:

Install, configure, administer, and maintain Oracle database environments.

Monitor database health, availability, performance, and resource utilization.

Perform database performance tuning and troubleshoot slow‑running SQL queries.

Manage Oracle RAC, ASM, and Data Guard configurations to ensure high availability.

Develop and maintain RMAN backup, recovery, and disaster recovery strategies.

Perform database upgrades, patching, migrations, and environment refreshes.

Manage tablespaces, datafiles, storage allocation, and database capacity planning.

Configure and monitor database replication using Oracle GoldenGate.

Implement database security policies, access controls, user permissions, and auditing.

Identify and resolve database failures, blocking sessions, locks, and performance bottlenecks.

Automate routine DBA activities using shell scripting and Oracle utilities.

Collaborate with application developers, infrastructure teams, and data engineers to resolve database‑related issues.

Maintain technical documentation, backup procedures, recovery plans, and operational standards.

Experience & Professional Competencies:

8+ years of experience in Oracle Database Administration.

5+ years of hands‑on experience supporting enterprise Oracle production databases.

Strong experience with Oracle RAC, ASM, Data Guard, and RMAN.

Proven expertise in database performance tuning, troubleshooting, and optimization.

Experience managing high‑availability and disaster recovery environments.

Knowledge of Oracle database security, backup strategies, and capacity planning.

Experience with Linux/Unix environments and shell scripting.

Exposure to Oracle Cloud Infrastructure (OCI) or Exadata is preferred.

Strong analytical, troubleshooting, and problem‑solving skills.

Ability to manage critical production environments and collaborate with cross‑functional teams.

Academic Qualifications & Preferred Certifications:

Bachelor's degree in Computer Science, Information Technology, Database Administration, or a related field.

Master's degree in Computer Science or Information Systems is preferred.

Relevant certifications such as Oracle Database Administration Professional, Oracle Database Administration Associate, or Oracle Cloud Infrastructure certifications are an advantage.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.