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System Administrator Jobs in Toronto, ON (NOW HIRING)

Amphenol HSIO

System Administrator

Markham, ON · On-site

System Administrator Location: Markham, ON Hybrid Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile ...

Amphenol HSIO

System Administrator

Markham, ON · On-site

System Administrator Location: Markham, ON Hybrid Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile ...

Td

ServiceNow System Administrator

Toronto, ON · On-site

CA$81K - CA$115K/yr

ServiceNow Certified System Admin (CSA) designation * More than 5 years of ServiceNow System Administration experience * High SME technical knowledge of the ServiceNow Platform and its capabilities

Moneris

Systems Administrator III (Linux)

Toronto, ON · Hybrid

CA$85K - CA$113K/yr

Systems Administrator III (Linux) Your Moneris Career - The Opportunity As a Systems Administrator ... Troubleshoot complex issues to root cause across operating system,compute, storage, virtualization ...

2188186 ONTARIO INC

IT Administrator

Oakville, ON

CA$40K - CA$55K/yr

Btrust Supermarket Head Office is currently looking for full-time IT System Administrator to join our team in Oakville. These openings are available immediately. Job Summary Reporting to the ...

World Renew

Systems Administrator

Burlington, ON · On-site +1

CA$82K - CA$92K/yr

Systems Administrator Department: Operations Reports To: Information Systems Director Status ... Lead system upgrades and release management initiatives. User Support & Training * Provide day-to ...

Aviso Wealth

System Access Administrator

Toronto, ON · On-site

The Systems Access Administrator will provide prompt and efficient service to our partners and internal staff. As one aviso: * We Care - You do the right thing for clients, partners and colleagues.

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System Administrator information

See Toronto, ON salary details

$31.5K

$73.1K

$115.5K

How much do system administrator jobs pay per year?

As of Sep 3, 2026, the average yearly pay for system administrator in Toronto, ON is $73,144.00, according to ZipRecruiter salary data. Most workers in this role earn between $57,737.00 and $84,459.00 per year, depending on experience, location, and employer.

What is a system administrator?

System Administrators, often called sysadmins, are IT professionals responsible for installing, configuring, maintaining, and supporting computer systems and servers within an organization. They ensure that networks and systems run efficiently and securely, manage user accounts, oversee backups, and troubleshoot hardware and software issues. System Administrators play a key role in maintaining system uptime, implementing security protocols, and updating systems to prevent vulnerabilities. Their work is critical for the smooth and secure operation of a company's IT infrastructure.

What does a system administrator do?

The job of a System Administrator is to assume a range of IT responsibilities and technical services for your company’s internet and intranet presence. This will include such duties as installing anti-virus and malware protection software, undertaking regular systems maintenance, and troubleshooting problems. Additional duties can include serving as a digital technology information resource for employees and consulting with company leaders on the possible adoption of new technologies. Aside from this, you might be asked to evaluate and boost network system performance, make needed upgrades and repairs, and add approved users to the network and train them in proper usage.

What are the key skills and qualifications needed to thrive as a system administrator, and why are they important?

To thrive as a System Administrator, you need a solid understanding of computer networks, operating systems (Windows, Linux), and troubleshooting, often backed by a degree in IT or related certifications like CompTIA Network+ or Microsoft Certified: Azure Administrator Associate. Familiarity with tools such as Active Directory, virtualization platforms, backup solutions, and monitoring systems is typically required. Strong problem-solving, attention to detail, and effective communication skills help you manage incidents and work with diverse teams. These abilities ensure reliable system performance, minimize downtime, and support seamless business operations.

What are some common challenges system administrators face when managing a large IT infrastructure, and how can these be addressed?

System Administrators often encounter challenges such as ensuring system security, managing software updates across numerous devices, and troubleshooting network issues in large-scale environments. Keeping up with rapidly evolving technology and balancing routine maintenance with unexpected incidents can be demanding. Effective solutions include automating repetitive tasks, implementing robust monitoring tools, and regularly communicating with other IT team members to proactively address potential problems. Continuous learning and staying current with best practices in cybersecurity and system management are also essential for long-term success in this role.

What is the difference between System Administrator vs Network Administrator?

AspectSystem AdministratorNetwork Administrator
CertificationsCompTIA Server+, Microsoft Certified: Windows Server FundamentalsCompTIA Network+, Cisco CCNA
Work EnvironmentManage servers, operating systems, and internal IT infrastructureFocus on network hardware, configurations, and connectivity
ResponsibilitiesMaintain servers, troubleshoot OS issues, manage backupsConfigure routers/switches, monitor network performance, ensure security

While both roles support IT infrastructure, System Administrators primarily manage servers and operating systems, whereas Network Administrators focus on network hardware and connectivity. They often collaborate but have distinct technical focuses within an organization.

How much do system administrators make?

System administrators typically earn a median annual salary of around $70,000 to $90,000, depending on experience, certifications, and location. Entry-level roles may start lower, while experienced administrators with specialized skills or certifications like CompTIA or Cisco can earn higher salaries. Salaries can also vary based on the size and industry of the organization.

How much is the salary of a system administrator?

The average salary of a system administrator varies by experience and location but typically ranges from $50,000 to $85,000 annually in the United States. Entry-level positions may start lower, while experienced administrators with certifications like CompTIA or Cisco can earn higher salaries, especially in larger organizations or tech hubs.
More about System Administrator jobs

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For System Administrator jobs in Toronto, ON, the most frequently searched job titles are:

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System Administrator jobs near you
Infographic showing various System Administrator job openings in Toronto, ON as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 12% Part Time, and 2% Contract. Highlights an 89% Physical, 4% Hybrid, and 7% Remote job distribution, with an average salary of $73,144 per year, or $35.2 per hour.

System Administrator

Amphenol HSIO

Markham, ON • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 19 days ago

Job description

Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile, RF, Optics, and Commercial electronics markets. Amphenol Corporation is one of the world’s largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive global presence in research and development, manufacturing, and sales. We design and manufacture a wide range of innovative connectors as well as cable assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and automotive.


Position: System Administrator 

Location: Markham, ON

Hybrid

Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile, RF, Optics, and Commercial electronics markets. Amphenol Corporation is one of the world's largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive global presence in research and development, manufacturing, and sales. We design and manufacture a wide range of innovative connectors as well as cable assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and automotive.

Amphenol's High Speed IO Connectors and OverPass Solutions Business Unit is a market leader in high-speed, high-bandwidth interconnect solutions used in servers, storage, networking equipment, and data center infrastructure. Our products enable reliable, low-loss data transmission in some of the world's most advanced IT and Datacom platforms, helping power the technology behind leading Tier 1 OEMs. With global design, sales, and manufacturing teams, we are growing quickly and continuing to invest in our people and products. This role is a chance to make a real impact as part of a collaborative, fast-moving team within Amphenol's decentralized culture, where ideas are heard, initiative is encouraged, and teams are empowered to make decisions with clear accountability.

Job Description:

The System Administrator will be responsible for the maintenance, configuration, and reliable operation of our organization's computer systems, servers, and cloud infrastructure. You will install hardware and software, manage servers, and ensure the stability of the organization's IT environment. This role demands strong technical skills in Windows Server, Active Directory, Microsoft Entra ID, Group Policy, Microsoft 365, virtualization, cloud infrastructure, and technical documentation.

Roles & Responsibilities:

  • System Management: Maintain and manage Windows Server environments, Active Directory, Entra ID/AAD, and Group Policy. Ensure optimal performance and security.
  • M365 Administration: Administer Microsoft 365 services including Exchange Online, Intune, Teams, and SharePoint Online. Ensure secure, reliable, and efficient operation of the Microsoft 365 environment.
  • Virtualization: Proficiency with virtualization technologies (e.g., Hyper-V or VMware).
  • Documentation: Develop and maintain comprehensive documentation for IT processes, systems configurations, and network layouts.
  • Cloud Services: Provide support and maintenance for Azure services including Azure VMs, Azure Backup, Azure Files, Azure Monitor, Azure DNS, and other related infrastructure services.
  • RMM & Ticketing Systems: Utilize NinjaRMM and other ticketing systems to monitor, manage, and resolve IT issues efficiently.
  • Project Implementation: Participate in IT projects such as system upgrades, migrations, and new implementations.
  • Backup and Recovery: Manage backup solutions and ensure regular testing of data restore capabilities.
  • User Support: Provide technical support and training to staff on new technologies and IT solutions.
  • Security Compliance: Ensure compliance with IT security standards and best practices.

What You Bring to the Table:

  • Education: Diploma or bachelor’s degree in computer science, Information Technology, System Administration, or a closely related field.
  • Experience: Minimum of 5 years of relevant experience in system administration.
  • Technical Skills:
    • Strong knowledge of Windows Server, Active Directory, Entra ID/AAD, Group Policy, and M365.
    • Proficiency with virtualization technologies (e.g., Hyper-V).
    • Familiarity with Azure services (Azure VMs, Azure Backup, Azure File, Azure Monitor, Azure DNS).
    • Knowledge of Alibaba Cloud is highly desirable.
    • Experience with NinjaRMM and ticketing systems.
  • Certifications (Preferred):
    • Microsoft 365 Certified: Administrator Expert
    • Windows Server Hybrid Administrator Associate
  • Certifications (Nice to Have):
    • Microsoft Certified: Azure Administrator Associate
    • CCNA (Cisco Certified Network Associate)
  • Other Skills:
    • Strong documentation and technical writing skills.
    • Ability to manage and troubleshoot complex IT environments.
    • Excellent problem-solving and communication skills.
    • Ability to work collaboratively in a team environment and independently when necessary.

Why Join Amphenol?

  • Be part of a global leader in interconnect technology.
  • Work with a team passionate about innovation and results.
  • Access professional development opportunities and career advancement.
  • Receive competitive compensation and benefits.

Come join the Amphenol family!

The base salary range for this position is $80,000 - $105,000 annually. In determining the rate of pay, Amphenol considers a variety of nondiscriminatory factors, including but not limited to geographic location, relevant industry experience, qualifications, skills, and education. It would be rare for an individual to be hired at or near the top of the range for a given role. Base salary is one facet of Amphenol's total rewards package which includes participation in our comprehensive benefits program with medical, dental, and vision benefits, vacation, sick leave, paid holidays, life insurance, short/long term disability, and membership in our Defined Contribution Pension Plan. 

Amphenol Corporation is proud of our reputation as an excellent employer. Our main focus is to provide the highest level of support and responsiveness to both our employees and our customers. Amphenol Corporation offers the opportunity for career growth within a global organization. We believe that Amphenol Corporation is unique in that every employee, regardless of his or her position, has the ability to positively impact the business.


Amphenol Corporation is proud of our reputation as an excellent employer. Our focus is to provide the highest level of support and responsiveness to both our employees and our customers, the world's largest technology companies. Amphenol Corporation offers the opportunity for career growth within a global organization. We believe that Amphenol Corporation is unique in that every employee, regardless of his or her position, has the ability to positively impact the business.

Amphenol is an “Equal Opportunity Employer” - Minority/Female/Disabled/Veteran/Sexual Orientation/Gender Identity/National Origin. For additional company information please visit our website at https://www.amphenol-cs.com/

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