Senior Oracle APEX & Database Administrator - Jobs and employment opportunities in Canada - jobs-ca.com

Position Summary

We are seeking a Senior Oracle APEX and Database Administrator to support and enhance enterprise database platforms and Oracle APEX application environments. This role will be responsible for the design, administration, performance optimization, and lifecycle management of Oracle databases and APEX/ORDS platforms supporting critical business applications.

The successful candidate will work closely with DBA, middleware, and application teams to ensure high availability, performance, and security of systems across development, QA, and production environments.

Key Responsibilities

Oracle Database Administration

Manage and maintain Oracle databases (19c and newer) across multiple environments

Perform database installations, upgrades, patching, and migrations

Implement backup/recovery strategies and disaster recovery solutions

Monitor database performance and tune SQL, memory, and storage

Manage database security, roles, and access controls

Support PDB/CDB architecture, and database consolidation strategies

Oracle APEX / ORDS Administration

Install, configure, and upgrade Oracle APEX and ORDS environments

Manage APEX schemas, users, and workspace configurations

Support APEX application deployments and lifecycle management

Troubleshoot APEX performance, session management, and runtime issues

Configure ORDS connections, pools, and security integration

Support integration between APEX and enterprise systems (e.g., APIs, EBS, middleware)

Environment & Infrastructure Management

Manage multi-environment setups (DEV, QA, PROD)

Support WebLogic or application server configurations for APEX/ORDS

Coordinate database and application upgrades with cross-functional teams

Maintain environment consistency and deployment standards

Support capacity planning and performance testing initiatives

Operational Support & Troubleshooting

Provide Tier 3 support for database and APEX incidents

Troubleshoot complex issues including: 

Database performance degradation

APEX application errors

ORDS connectivity and configuration issues

Monitor system health and proactively resolve issues

Participate in on-call rotations and incident response

Automation & Process Improvement

Develop automation scripts for deployments, monitoring, and maintenance

Improve DBA operational processes and documentation

Contribute to CI/CD pipelines for database and APEX deployments

Ensure compliance with security and audit requirements

Working knowledge and experience with Microsoft SQL Server

Experience with PostgreSQL and MySQL is nice to have

Additional Responsibilities

Develop automation scripts for deployments, monitoring, and maintenance

Improve DBA operational processes and documentation

Contribute to CI/CD pipelines for database and APEX deployments

Ensure compliance with security and audit requirements

Required Qualifications

5–10+ years of Oracle Database Administration experience

Strong experience with Oracle APEX and ORDS administration

Deep knowledge of: 

Oracle 19c+ database architecture

PL/SQL, performance tuning, and troubleshooting

Experience with: 

Linux/Unix environments

Backup/recovery strategies (RMAN)

Database upgrades and migrations

Strong troubleshooting and problem-solving skills in complex environments

Preferred Qualifications

Experience with: 

Oracle Data Guard

WebLogic or similar middleware platforms

Integration with enterprise systems (EBS, APIs, identity management)

Knowledge of cloud platforms (OCI preferred)

Familiarity with enterprise monitoring tools and automation frameworks

Experience supporting APEX in high-availability, multi-instance environments

Soft Skills

Strong communication and cross-team collaboration

Ability to lead technical initiatives and mentor junior DBAs

Detail-oriented with strong ownership mindset (important for production stability)

Ability to manage competing priorities in a fast-paced environment