System Administrator

Location:

Markham, ON
• Posted: 7/15/2026
• Location Name: HSIO-Markham
• Wage:
Depends on Experience

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
Hybrid
Amphenol's High Speed IO Connectors and Over Pass 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 , Group Policy, Microsoft 365, virtualization, cloud infrastructure, and technical documentation.

Roles & Responsibilities

System Management:
Maintain and manage Windows Server environments, Active Directory, Entra /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 /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…