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Randstad Digital

Senior Database Administrator

Mississauga, ON, Canada

Contract

Apply About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Dec 4, 2026
Experience: 5+ years of hands-on database administration experience in enterprise, high-availability, or transaction-heavy environments.
Posting language: English
Posted: Nov 4, 2026

Original job description

Senior Database Administrator (DB2 & Oracle)

Role Type: 12-Month Contract (Hybrid, Greater Toronto Area)

Work Arrangement: Hybrid (approx. 6 days per month on-site; 1–2 days per week)

Number of openings: 1

Must be eligible to work in Canada

Roles and responsibilities:

We are seeking an experienced Senior Database Administrator to support, optimize, and modernize mission-critical database platforms across an enterprise hybrid environment. This role centers on core IBM Db2 administration with secondary Oracle database support, emphasizing high availability, disaster recovery, security, and progressive automation.

Candidates with deep IBM Db2 expertise who are eager to expand into cloud, OpenShift, and containerized platforms are strongly encouraged to apply - on-the-job training in these emerging areas will be provided.

Key Responsibilities

Database Administration & Reliability: Manage, configure, patch, upgrade, and monitor enterprise IBM Db2 and Oracle databases across production, non-production, and disaster recovery environments.
HA/DR & Business Continuity: Oversee high-availability and disaster recovery architectures (e.g., Oracle Data Guard, Db2 HADR), executing recurring recovery tests to safeguard strict RPO and RTO standards.
Performance Optimization: Diagnose and resolve complex database, memory, OS, and storage bottlenecks; perform proactive query tuning and capacity planning.
Automation & CI/CD: Build scripts to automate routine operations, health checks, patching, and provisioning using Python, Bash, PowerShell, or Ansible. Support database change automation through CI/CD pipelines.
Security & Governance: Enforce database hardening, least-privilege access, auditing, encryption, and compliance remediation.
Platform Evolution: Provide secondary support for SQL Server/PostgreSQL and assist with the modernization of database workloads toward containerized environments (OpenShift/Kubernetes).

Must have skills/experience/qualifications

5+ years of hands-on database administration experience in enterprise, high-availability, or transaction-heavy environments.
Strong hands-on IBM DB2 expertise (installation, maintenance, backup/recovery, tuning, troubleshooting, and lifecycle management).
Solid working knowledge of Oracle Database (architecture, RMAN, HA/DR, and patching).
Scripting capabilities in at least one modern language (Python, Bash, PowerShell, or Ansible).
Infrastructure literacy: Familiarity with Linux/Windows platforms, storage fundamentals, and networking basics.
Growth mindset: Enthusiasm for learning container technologies (Docker/OpenShift) and hybrid cloud architectures.

Nice-to-Have

Exposure to PostgreSQL or Microsoft SQL Server.
Experience with CI/CD database deployment tools and source control.
Relevant Db2, Oracle, or Cloud/Kubernetes certifications.

Apply About employer

More about this job

Responsibilities

Administer, maintain, secure, and optimize enterprise Db2 and Oracle databases across production, non-production, and disaster recovery environments. Improve reliability through high-availability and recovery testing, performance tuning, automation, and support for database modernization toward containerized platforms.

Requirements

Requires at least five years of enterprise database administration experience, strong hands-on IBM Db2 expertise, and working knowledge of Oracle Database. Candidates must also have scripting skills and familiarity with operating systems, storage, and networking; experience with containers, hybrid cloud, PostgreSQL, SQL Server, or CI/CD is beneficial.

Skills

IBM Db2 Administration
Oracle Database Administration
Database High Availability
Disaster Recovery
Database Performance Tuning
Database Backup and Recovery
Python
Bash
PowerShell
Ansible
Linux
Windows
Database Security
CI/CD
OpenShift
Kubernetes

Visa sponsorship

Not detected in the job text

Keywords

IBM Db2
Oracle Database
SQL Server
PostgreSQL
Oracle Data Guard
Db2 HADR
RMAN
Python
Bash
PowerShell
Ansible
Linux
Windows
Docker
OpenShift
Kubernetes
Hybrid Cloud
High Availability
Disaster Recovery
Backup and Recovery
Performance Tuning
Capacity Planning
Database Security
Encryption
Auditing
CI/CD
Database Automation
Database Patching
Source Control

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