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AtkinsRéalis

Database and Software Administrator

Mississauga, ON, Canada

Job type: Full-time
Experience: 5+ years of experience as a Database Administrator, with strong hands-on experience in IBM Informix.
Posting language: English
Posted: Sep 22, 2026

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Original job description

Job Description

Overview

The Database Administrator (DBA) & Software Administrator supports Candu Projects by ensuring the availability, performance, security, and integrity of Oracle, MSSQL, and IBM Informix databases and associated enterprise applications. These systems enable critical project functions including capital planning, project controls, asset creation, procurement, regulatory reporting, and Document Control.

Your role

Database Administration:

Install, configure, administer, and upgrade Oracle, MSSQL, and IBM Informix databases supporting project systems.
Ensure high availability and performance of databases supporting:
- Project controls, cost tracking, and scheduling.
- Document Control.
- Materials, procurement, and contract management.
- Construction documentation and record keeping.
Implement and maintain backup, recovery, and disaster recovery strategies aligned with reliability standards.
Monitor database health, performance, and storage growth across multi-year programs.
Manage database security, access controls, and data segregation to meet regulatory, audit, and cybersecurity requirements.
Perform SQL tuning, indexing, and configuration optimization for high-volume transactional and reporting workloads.
Plan and execute patches, fixes, and upgrades in accordance with change management and outage windows.
Support internal and external audits, compliance reviews, and data retention obligations.
Develop and maintain database documentation, standards, and operational runbooks.

Software & Application Administration:

Administer enterprise and project-centric applications used in utility capital delivery.
Perform application installations, upgrades, patches, and configuration changes with minimal impact to active projects.
Monitor application performance, batch processing, interfaces, and reporting cycles critical to utility governance.
Support integrations with ERP, asset management, document management, scheduling, and reporting platforms.
Manage application access for corporate, project, and field users in accordance with utility security policies.
Coordinate with vendors, system integrators, and internal stakeholders for issue resolution and enhancements.
Support testing, cutovers, and deployments for new projects and capital program rollouts.

Project & Operational Support:

Ensure system stability during key project phases such as mobilization, peak construction, commissioning, and in-service transitions.
Participate in incident management, root cause analysis, and service restoration affecting capital project delivery.
Collaborate with engineering, construction, operations, IT infrastructure, and cybersecurity teams.

Working Conditions:

Occasional after-hours or weekend work to support outages, cutovers, or regulatory deadlines.

About you

5+ years of experience as a Database Administrator, with strong hands-on experience in IBM Informix.
Experience administering enterprise applications in Linux/UNIX and Windows environments.
Experience with high-availability, disaster recovery, and geographically distributed systems.
Strong expertise in database backup/recovery, performance tuning, security, and capacity planning.
Knowledge of asset lifecycle management and capitalization processes.
Familiarity with ITIL-based incident, change, and problem management.
Familiarity with cybersecurity requirements.
Strong analytical, troubleshooting, and documentation skills.
Proficiency in scripting (Shell, Python, or similar) for automation and monitoring.

Rewards & benefits

Explore the rewards and benefits that help you thrive – at every stage of your life and your career at AtkinsRéalis in Canada.

Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.

Make the most of diverse opportunities for training and professional development to grow your skills and expertise.

And take advantage of our hybrid working culture and generous time-off policies to balance a fulfilling career with your personal life.

Be rewarded. Find out more.

About AtkinsRéalis

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

AtkinsRéalis cares about your privacy. AtkinsRéalis and other subsidiary or affiliated companies of AtkinsRéalis (referred to throughout as “AtkinsRéalis”) are committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data.

By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.

Appropriate accommodation will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA).

Successful applicants will be notified about AtkinsRéalis’ accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process.

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.

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More about this job

Responsibilities

The Database and Software Administrator ensures the availability, performance, and security of enterprise databases and applications supporting critical project functions. This role involves managing database health, performing system upgrades, and coordinating with stakeholders to support project delivery and system stability.

Requirements

Candidates must have at least 5 years of experience as a Database Administrator with specific expertise in IBM Informix and enterprise application administration. Proficiency in Linux/UNIX environments, database security, performance tuning, and scripting for automation is required.

Skills

Database administration
Oracle
MSSQL
IBM Informix
Linux
UNIX
Windows
Performance tuning
Backup and recovery
Disaster recovery
SQL
Shell scripting
Python
Cybersecurity
Capacity planning
ITIL

Benefits

Competitive compensation
Employee recognition
Flexible benefits
Training and professional development
Hybrid working culture
Generous time-off policies

Visa sponsorship

Not detected in the job text

Keywords

Database Administrator
Oracle
MSSQL
IBM Informix
Linux
UNIX
Windows
SQL
Shell
Python
Automation
Performance Tuning
Disaster Recovery
Cybersecurity
ITIL
Capacity Planning
Asset Lifecycle Management
Enterprise Applications
System Integration
Project Controls
Data Segregation
Change Management
Incident Management
Root Cause Analysis
Regulatory Compliance
Data Retention
Infrastructure
Engineering
Construction
Utility

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