Oracle & PostgreSQL DBA — Performance Tuning & Infra

Quantum World Technologies Inc.; Phoenix (AZ); On-site; USD 90,000 - 150,000; Full time

Job summary

Quantum World Technologies Inc. in Phoenix, AZ is seeking an experienced Database Administrator to join the Database Infrastructure Operations team.

The role involves deploying and supporting multiple DBMSs—Oracle, PostgreSQL, MySQL, Cassandra—and ensuring high availability and performance in a fast-paced environment. Candidates should have 3–9 years of database administration experience, a Bachelor’s degree, and hands-on skills with Oracle RAC, Data Guard, OEM, GoldenGate, ASM, Exadata, Linux,

Qualifications

• Bachelor degree completed; 3–9 years in database administration.
• Experience with performance tuning and designing Oracle databases, tables, and schemas.
• Should work well in a high-priority, fast-paced environment.

Responsibilities

• Support database infrastructure operations, including hardware, network, and security aspects.
• Install and configure DBMSs (Oracle, PostgreSQL, MySQL, etc.) and ensure availability.
• Perform backups, recovery, patches, and parameter configuration.
• Monitor performance, manage users and privileges, and handle production/staging/dev environments.
• Engage in grid/DB patching (12c/19c/23AI) and cross-team collaboration.

Skills

Oracle

MySQL

Linux

Ansible

Python

PostgreSQL

Oracle DBA

Education

Bachelor's degree

Tools

Oracle RAC

Data Guard

OEM

GoldenGate

ASM

Exadata

Cloud/VM

PostgreSQL

Cassandra

SQL Server

Job description

Quantum World Technologies Inc. in Phoenix, AZ is seeking an experienced Database Administrator to join the Database Infrastructure Operations team.

The role involves deploying and supporting multiple DBMSs—Oracle, PostgreSQL, MySQL, Cassandra—and ensuring high availability and performance in a fast-paced environment. Candidates should have 3–9 years of database administration experience, a Bachelor’s degree, and hands-on skills with Oracle RAC, Data Guard, OEM, GoldenGate, ASM, Exadata, Linux,