5 results for Systems Administrator in St. Catharines, ON

Systems Administrator

Mississauga, Ontario
onsite
Permanent
80000 - 110000 CAD / Yearly
Robert Half Canada is recruiting on behalf of an organization seeking a Systems Administrator to support, maintain, and enhance its IT infrastructure and core systems environment.This opportunity is suited to a technology professional who enjoys troubleshooting, improving system performance, and helping ensure reliable, secure, and efficient IT operations. The successful candidate will work across infrastructure, systems administration, user support, and continuous improvement initiatives. Key Responsibilities<ul><li>Administer, maintain, and support servers, operating systems, networks, and related infrastructure.</li><li>Monitor system performance, availability, backups, and security to help ensure stable day-to-day operations.</li><li>Install, configure, patch, and upgrade hardware, software, and system applications.</li><li>Support user account administration, access controls, permissions, and identity management processes.</li><li>Troubleshoot and resolve system, server, network, and end-user issues in a timely manner.</li><li>Assist with cybersecurity practices, endpoint protection, vulnerability remediation, and system hardening.</li><li>Support backup, recovery, disaster recovery, and business continuity processes.</li><li>Document technical procedures, configurations, support processes, and system changes.</li><li>Work with internal stakeholders and external vendors to support projects, maintenance, and issue resolution.</li><li>Contribute to infrastructure improvements, automation opportunities, and technology upgrades.</li></ul>
2026-09-03T00:00:00Z

Linux Administrator

Toronto, Ontario
onsite
Temporary
45 - 55 CAD / Hourly
We are seeking a skilled Linux Administrator / Specialist to manage, maintain, and optimize Linux-based systems and enterprise infrastructure. This role will support virtual environments, servers, directory services, messaging platforms, and database systems while ensuring security, performance, and reliability across the IT environment. This is a 3-4 month contract to start for our client in North York, Ontario and fully on site. The ideal individual will be available to work immediately. Key Responsibilities:<ul><li>Administer, monitor, and troubleshoot Linux servers in production and development environments. Based on general knowledge.</li><li>Manage and support VMware virtual infrastructure, including provisioning, maintenance, and performance tuning. </li><li>Maintain and optimize physical and virtual server environments. </li><li>Support and troubleshoot MySQL databases, including backups, performance, and availability. </li><li>Administer and support Microsoft Exchange environments. </li><li>Manage Active Directory (AD) integration, authentication, group policies, and user access. </li><li>Perform system patching, upgrades, backups, and disaster recovery planning. </li><li>Monitor system health, security, and capacity to ensure high availability and performance. </li><li>Collaborate with infrastructure, database, and application teams to resolve technical issues and improve system operations. </li><li>Document configurations, procedures, and support processes. </li></ul>
2026-09-14T00:00:00Z

Database Administrator

Toronto, Ontario
onsite
Permanent
80000 - 90000 CAD / Yearly
This job posting is for a current vacancy with our client.Are you a database professional who enjoys optimizing performance, supporting business-critical systems, and contributing to modern cloud-based data initiatives?Our client is seeking a Database Administrator to join their technology team and play a key role in maintaining and evolving a growing data ecosystem.This position offers the opportunity to work across SQL Server environments and modern Azure-based data platforms, supporting data integrations, analytics, reporting, automation, and cloud transformation initiatives.What you will do and how you will make an impact: <ul><li>Administering and supporting Microsoft SQL Server environments, including installation, configuration, maintenance, performance tuning, backup and recovery, and security management.</li><li>Monitoring database performance, availability, capacity, and health to proactively identify and resolve issues before they impact business operations.</li><li>Managing database infrastructure, reviewing usage trends, and generating metrics and reports to support operational planning and decision-making.</li><li>Collaborating with technology teams and project stakeholders to design, build, and deploy new database environments and solutions.</li><li>Supporting enterprise applications, integrations, APIs, ETL/ELT processes, and automated data flows between internal and third-party systems.</li><li>Maintaining and enhancing data pipelines that enable efficient and secure movement of information across the organization.</li><li>Supporting hybrid data environments spanning both on-premises infrastructure and cloud-based platforms.</li><li>Participating in cloud migration and data modernization initiatives involving Azure SQL technologies, Microsoft Fabric, Data Factory, and related services.</li><li>Assisting with disaster recovery planning, high availability solutions, data archiving, and business continuity initiatives.</li><li>Providing advanced technical support for database-related incidents and collaborating with vendors and external partners when required.</li><li>Creating and maintaining technical documentation, operational procedures, and best practices.</li><li>Evaluating emerging technologies and identifying opportunities to improve system performance, reliability, and scalability.</li><li>Participating in after-hours support and on-call rotations for critical business systems.</li></ul>
2026-09-10T00:00:00Z

Cloud Systems Analyst

Toronto, Ontario
onsite
Temporary
25 - 35 CAD / Hourly
We are looking for a Cloud Systems Analyst to support cloud infrastructure and end-user computing initiatives for a hospitality-focused environment in Toronto, Ontario. This Long-term Contract position is ideal for someone who combines strong cloud platform knowledge with hands-on experience in endpoint management, automation, identity services, and secure system operations. The successful candidate will help maintain scalable cloud-based services, improve operational processes, and contribute to stable day-to-day platform performance. Responsibilities:<ul><li>Monitor cloud-based services and endpoint environments to identify performance issues, track system health, and support timely incident response.</li><li>Manage and support cloud-hosted desktop and endpoint environments to ensure reliable availability, efficient resource utilization, and consistent operational performance.</li><li>Create and maintain automation workflows using PowerShell and Microsoft platform technologies to streamline provisioning, configuration, and ongoing operational support.</li><li>Support endpoint lifecycle management activities including provisioning, onboarding, offboarding, patching, software deployment, and compliance management.</li><li>Coordinate deployment activities across cloud-based environments while helping reduce service interruptions and improve service reliability.</li><li>Maintain accurate configuration management practices to support consistency, traceability, and controlled technology changes.</li><li>Work with security-focused standards and technical controls to help protect endpoints, cloud services, identity platforms, and operational assets.</li><li>Use Atlassian Jira to document tasks, track technical issues, and collaborate effectively with cross-functional stakeholders.</li><li>Support cloud platform improvements and assist with infrastructure, endpoint, and identity-related changes across Microsoft and cloud-based technologies.</li></ul>
2026-09-17T00:00:00Z

Payroll Administrator

North York, Ontario
remote
Temporary
40.375 - 46.75 CAD / Hourly
We are looking for an experienced Payroll Administrator to support a high-volume Canadian payroll function in North York, Ontario. This Long-term Contract opportunity is ideal for someone who can confidently manage end-to-end payroll activities with minimal supervision while adapting to a busy and evolving work environment. The successful candidate will bring strong knowledge of Canadian payroll practices, a detail-oriented approach, and the ability to provide reliable backup support across payroll operations. Experience with ADP Workforce Now and exposure to broader payroll processes across multiple employee groups will be highly valued. Responsibilities: • Administer full-cycle Canadian payroll for salaried, hourly, and intern employee populations on a biweekly schedule, ensuring timely and accurate pay processing. • Review payroll data for accuracy, validate earnings and deductions, and resolve discrepancies before final submission. • Manage payroll-related transactions such as new hires, terminations, status changes, benefit updates, and other employee record adjustments. • Provide dependable backup coverage for additional payroll operations and help maintain continuity across the broader payroll function. • Work within ADP Workforce Now and related payroll systems to process payroll inputs, maintain records, and support reporting requirements. • Coordinate payment processing activities and confirm payroll outputs align with internal controls and compliance standards. • Respond to payroll inquiries from employees and internal stakeholders with professionalism, accuracy, and a strong service mindset. • Support payroll reporting and analysis using available tools and systems, including extracting data and assisting with reconciliations where needed. • Contribute to ongoing process improvements and assist with operational payroll changes when required within the payroll environment.
2026-09-22T00:00:00Z