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Flexstaf I.T. Inc.

Senior Oracle DBA

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Contract

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Job details

Job type: Contract
Apply by: Dec 3, 2026
Experience: 8-10 years of Oracle Database Administration experience.
Posting language: English
Posted: Nov 3, 2026

Original job description

Key Responsibilities

Collaborate with application teams on data modeling, schema design, and deployment of complex PL/SQL packages, procedures, triggers, and views.
Analyze execution plans, tune SQL queries, and optimize indexes for high-throughput transactional environments.
Lead database release automation, code reviews, and schema migrations across Development, Staging, and Production.
Monitor database health and troubleshoot lock contention, deadlocks, latency, and performance issues.
Partner with infrastructure and cloud teams to design and execute on-premises to AWS database migrations.
Support Oracle and PostgreSQL databases within AWS environments.
Participate in database capacity planning, failover testing, and disaster recovery design.
Integrate database deployments with CI/CD pipelines and Agile delivery processes.
Collaborate with offshore teams for maintenance and production support.
Provide occasional weekend and after-hours support for deployments and maintenance activities.

Core Qualifications

8-10 years of Oracle Database Administration experience.
Strong expertise with Oracle Database 12c/19c+.
Advanced experience with:
PL/SQL
Execution Plan Analysis
SQL Performance Tuning
AWR
ASH
ADDM
Hands-on experience administering AWS database services, including:
Amazon RDS for Oracle
Amazon RDS for PostgreSQL
Amazon Aurora
Hands-on knowledge of PostgreSQL architecture, schema design, and performance optimization.
Proven experience migrating on-premises databases to AWS.
Experience with AWS migration tools such as:
AWS DMS
AWS SCT
Native Database Migration Utilities
Strong experience with database release management and CI/CD integration.
Experience supporting high-availability and disaster recovery environments.
Strong troubleshooting, analytical, and performance optimization skills.

Preferred Qualifications

Oracle Exadata administration experience.
Knowledge of Exadata performance features including Smart Scan and Hybrid Columnar Compression.
Bash/Shell scripting experience.
Python automation experience.
AWS database-related certifications.
Oracle database certifications.

Key Skills

Oracle Database 12c/19c+
Oracle DBA
PL/SQL
SQL Performance Tuning
AWR / ASH / ADDM
PostgreSQL
AWS
Amazon RDS
Amazon Aurora
AWS DMS
AWS SCT
Database Migration
Oracle Exadata
CI/CD
Database Automation
Disaster Recovery
High Availability
Bash
Python
Agile

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More about this job

Responsibilities

Design and optimize Oracle and PostgreSQL databases, develop and deploy PL/SQL components, and manage database releases, migrations, monitoring, and performance troubleshooting. Support AWS database environments, high availability and disaster recovery, CI/CD integration, and production maintenance in collaboration with application, infrastructure, cloud, and offshore teams.

Requirements

Requires 8–10 years of Oracle Database Administration experience, strong Oracle 12c/19c+ and PL/SQL expertise, and advanced SQL performance tuning and diagnostic skills. Candidates should also have hands-on AWS RDS and Aurora experience, PostgreSQL knowledge, on-premises-to-AWS migration experience, and database release, CI/CD, high-availability, and disaster-recovery experience.

Skills

Oracle Database Administration
Oracle Database 12c/19c+
PL/SQL
SQL Performance Tuning
Execution Plan Analysis
AWR/ASH/ADDM
PostgreSQL
Amazon RDS
Amazon Aurora
AWS DMS
AWS SCT
Database Migration
CI/CD
High Availability and Disaster Recovery
Oracle Exadata
Bash and Python

Visa sponsorship

Not detected in the job text

Keywords

Oracle Database Administration
Oracle Database 12c/19c+
PL/SQL
Execution Plan Analysis
SQL Performance Tuning
AWR
ASH
ADDM
PostgreSQL
AWS
Amazon RDS for Oracle
Amazon RDS for PostgreSQL
Amazon Aurora
AWS DMS
AWS SCT
Database Migration
Database Release Management
CI/CD
Oracle Exadata
Smart Scan
Hybrid Columnar Compression
Bash
Python
High Availability
Disaster Recovery
Capacity Planning
Schema Design
Agile
Performance Optimization
Production Support

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