4 results for It Administrator in Mississauga, ON

Systems Administrator

Mississauga, ON
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, ON
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, ON
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

Payroll Administrator

Markham, ON
onsite
Temporary
29.2885 - 33.913 CAD / Hourly
We are looking for a Payroll Administrator to join a not-for-profit organization in Unionville, Ontario on a Contract basis to provide onsite coverage during a leave of absence. This position is responsible for delivering accurate payroll processing while supporting related accounting, reporting, and benefits administration activities. The successful candidate will play an important role in maintaining compliance with applicable legislation, collective agreements, and internal policies while contributing to a collaborative workplace. Responsibilities: • Process payroll accurately and on schedule, ensuring deductions, taxable benefits, garnishments, and remittances are handled in accordance with federal and provincial requirements, collective agreements, and organizational guidelines. • Maintain employee payroll records by updating pay information, benefit enrolments, attendance details, and seniority data with a high level of accuracy and timeliness. • Transfer payroll information into the accounting system and complete reconciliations for related general ledger accounts. • Track and reconcile payroll-related accruals, including vacation balances, employee benefits, and retroactive pay adjustments. • Prepare regular payroll cost reports and provide analysis by department to support financial oversight and planning. • Coordinate employee benefit and pension changes, and respond to payroll and benefits inquiries from staff, government bodies, and external service providers. • Complete payroll compliance activities such as Records of Employment, T4 preparation, and year-end payroll reporting within required deadlines. • Support audits and external reporting by providing payroll documentation for annual financial reviews, ministry submissions, and other stakeholder requirements. • Assist with related finance and administrative duties such as processing authorized donation deductions, reviewing petty cash records, maintaining vendor information, and preparing rebate reporting. • Contribute to a positive team environment by supporting cross-department communication, following health and safety requirements, and adjusting work hours when needed to meet deadlines.
2026-09-17T00:00:00Z