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Joblinxsapp

Database Administrator - Senior

Toronto, ON, Canada

Full-time

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Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Dec 9, 2026
Posting language: English
Posted: Nov 9, 2026

Original job description

Position Summary

The client is seeking an experienced Senior Database Administrator to manage, maintain, optimize, and secure enterprise-level database environments across cloud, hybrid, and on-premises infrastructure.

The ideal candidate should have extensive experience with Oracle and Microsoft SQL Server, cloud database platforms (Azure/AWS), database architecture, performance tuning, backup and recovery, security implementation, and enterprise database migrations.

Candidates with experience supporting large-scale government or public-sector applications, particularly Ontario Public Service (OPS), will be preferred.

Key Responsibilities

Design, implement, configure, and maintain enterprise database environments.
Administer and optimize Oracle, SQL Server, and other major DBMS platforms.
Manage cloud-hosted, hybrid, and on-premises database environments.
Perform database performance tuning, capacity planning, installation, upgrades, and migrations.
Develop and implement database backup, recovery, and disaster recovery strategies.
Implement database security, encryption, role-based access control (RBAC), and data masking.
Perform database version upgrades, patching, maintenance, and consolidation projects.
Design conceptual, logical, and physical database models.
Support database integrations using REST APIs, MuleSoft, and similar technologies.
Work with enterprise architecture, application development, and infrastructure teams.
Ensure compliance with government data privacy and security requirements.
Prepare technical documentation, reports, assessments, and recommendations.

Mandatory Technical Skills

Skill Area

Required Experience

Database Technologies

Oracle, Microsoft SQL Server, PostgreSQL, MySQL, IBM DB2

Cloud Databases

Azure SQL, Amazon RDS, Google Cloud SQL

Cloud Platforms

Microsoft Azure or AWS

Hybrid Infrastructure

Cloud-hosted and legacy on-premises database environments

Database Architecture

Conceptual, logical, physical data modelling and schema design

Security

RBAC, data masking, row-level security, TDE, encryption

Programming

SQL, PL/SQL, T-SQL, Java, Microsoft .NET

Database Integration

MuleSoft or similar integration technologies

Cloud Data Services

Azure SQL MI, Azure Blob Storage, Cosmos DB

Enterprise Systems

Large-scale enterprise and government applications

Additional / Preferred Skills

Oracle Database Administration

Oracle Database 12c/19c.
Oracle E-Business Suite R12.2.
Oracle Data Guard.
Oracle RAC and multi-node environments.
RMAN, ASM, and Flash Recovery Area (FRA).
WebLogic and Oracle Enterprise Manager (OEM).
Oracle database patching, upgrades, cloning, and migration.
Advanced Compression and Data Partitioning.
Oracle performance tuning and capacity planning.
Unix/Linux administration and shell scripting.

Cloud & DevOps

Azure SQL, Azure SQL MI, Cosmos DB.
AWS RDS and cloud database administration.
Database automation and DataOps.
PowerShell, Python, Bash scripting.
Cloud database migration and integration.
Disaster recovery and geo-replication.

Other Preferred Skills

MuleSoft.
REST APIs and application integrations.
Dynamics 365 and Power Platform.
Agile methodologies and Kanban.
Enterprise and Solution Architecture.
Ontario Government Enterprise Architecture practices.
Information Management principles.

Requirements

Experience Requirements

Candidates should demonstrate:

Extensive senior-level database administration experience.
Experience managing multiple enterprise DBMS platforms.
Experience with cloud and hybrid database environments.
Experience supporting large-scale government or enterprise applications.
Hands-on experience with database migrations, upgrades, and consolidation.
Experience implementing database security and privacy controls.
Experience developing backup, recovery, and business continuity strategies.
Experience working in Agile environments.

Communication Requirements

Excellent verbal and written communication.
Ability to prepare technical reports and documentation.
Ability to explain complex database architecture and technical solutions.
Strong stakeholder management and collaboration skills.
Ability to work with technical and non-technical teams.

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More about this job

Responsibilities

Design, administer, secure, and optimize enterprise databases across cloud, hybrid, and on-premises environments, including Oracle, SQL Server, and other major platforms. Lead database upgrades, migrations, performance tuning, backup and disaster recovery, security controls, integrations, and technical documentation while collaborating with architecture, application, and infrastructure teams.

Requirements

Requires extensive senior-level experience administering multiple enterprise database platforms, including cloud and hybrid environments, and supporting large-scale government or enterprise applications. Candidates should have hands-on experience with migrations, upgrades, security and privacy controls, recovery strategies, Agile work, and strong communication and stakeholder collaboration skills.

Skills

Oracle Database Administration
Microsoft SQL Server
PostgreSQL
MySQL
IBM DB2
Azure SQL
Amazon RDS
Database Architecture
Performance Tuning
Database Security
Backup and Recovery
Database Migration
Data Modeling
SQL
PL/SQL
T-SQL

Visa sponsorship

Not detected in the job text

Keywords

Oracle Database 12c/19c
Oracle E-Business Suite R12.2
Oracle Data Guard
Oracle RAC
RMAN
ASM
Flash Recovery Area
WebLogic
Oracle Enterprise Manager
Azure SQL Managed Instance
Azure Blob Storage
Cosmos DB
AWS RDS
Google Cloud SQL
MuleSoft
REST APIs
Dynamics 365
Power Platform
PowerShell
Python
Bash
Unix/Linux
DataOps
Role-Based Access Control
Data Masking
Row-Level Security
Transparent Data Encryption
Disaster Recovery
Geo-Replication
Agile

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