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Added 8 mins ago
BS
Spécialiste principal(e) – Fidélisation et CRM/Senior Loyalty & CRM Specialist
Browns Shoes
Montreal, QC
- Full-time
Added 8 mins ago
BA
Senior Analyst, Finance
Brookfield Asset Management
Toronto, ON · Brookfield Place
- Full-time
We are seeking a new Senior Analyst, Finance to join Brookfield in Toronto, ON. In this role, you will play a key role in inspiring change and continual improvement. If you are committed to…
Added 8 mins ago
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Senior Consultant, Cloud Services
BDO
Toronto, ON · Ottawa, ON · Oakville, ON · Vancouver, BC
- Full-time
As a Senior Consultant within BDO's Cloud Services team, you will play a critical role in supporting the growth and success of our cloud business. Acting as a trusted advisor to internal…
Added 21 mins ago
CC
Senior Manager, Salesforce Platform Architecture & Development
Canadian Cancer Society
Toronto, ON · Montreal, QC · Quebec, QC · Prince George, BC · Vancouver, BC · Kelowna, BC · Halifax, NS · St. John's, NL · Calgary, AB
- Full-time
Job Title: Senior Manager, Salesforce Platform Architecture & Development
Added 21 mins ago
O
DevOps
Onepoint
Montreal, QC
- Full-time
Nous recherchons un DevOps Senior - Azure OpenShift possédant une expertise Kubernetes/OpenShift, afin d'accélérer la transition vers une plateforme PaaS plus sécuritaire, standardisée et…
Added 21 mins ago
IC
Continuous Improvement Leader
IMT CORPORATION
ON
- $98,400 to $147,600 CAD / year
- Full-time
Communicate effectively with senior leadership, department managers, technical teams, and production employees
Added 21 mins ago
FB
Senior Manager, Financial Reporting
Fairstone Bank
Montreal, QC
- Full-time
Join Fairstone as a Senior manager, financial reporting and be part of our talented and growing team!
Added 27 mins ago
KI
Marketing Lead
Klara Inc
Hamilton, ON
- Full-time
This is a senior individual contributor position. Strategy is set collaboratively: you are expected to help shape it, challenge it with data where warranted, and then execute it.
Added 27 mins ago
RI
Senior Oracle Apps AI Developer
Raas Infotek
ON · Ontario, Canada
- Contract
We are seeking a highly skilled Oracle Apps AI Developer with expertise in Oracle E-Business Suite (EBS), Oracle Cloud Applications, Artificial Intelligence (AI), Machine Learning (ML), and…
Added 27 mins ago
BS
Technical Lead
Brainhunter Systems Ltd
Toronto, ON
- Contract
8+ years building and operating complex enterprise digital products, including experience as a Technical Lead, Staff Engineer or senior full-stack developer.
Added 27 mins ago
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Senior Technical Lead-Oracle Cloud- Oracle AI
Yochana
ON · Ontario, Canada
- Contract
We are seeking a highly skilled Oracle Apps AI Developer with expertise in Oracle E-Business Suite (EBS), Oracle Cloud Applications, Artificial Intelligence (AI), Machine Learning (ML), and…
Added 27 mins ago
C
Information Security Analyst - AI
CXC
Toronto, ON
- Contract
…technologies to transform business operations through intelligent automation and agentic AI solutions. We are seeking a Senior Information Security Analyst – Agentic AI Identity Governance…
Added 27 mins ago
TC
RPA Platform Engineer
Tata Consultancy Services
Toronto, ON
- $90,000 to $100,000 CAD / year
- Full-time
The Senior Platform Engineer develops, maintains, and manages automation platforms across on-premises environments, AWS cloud, and vendor SaaS solutions to enable automation across…
Added 27 mins ago
ES
Senior Program Manager
Epsilon Solutions Ltd.
Toronto, ON
- Contract
4. Work closely with technical teams developing and integrating AI agents, LLMs, APIs, security tools, automation frameworks, cloud environments, containers, and security test environments.
Added 39 mins ago
LC
Analyst, Business & Customer Insights
Loblaw Companies Limited
Brampton, ON
- Full-time
…strategic and tactical initiatives such as reporting, process automation and dashboard…
Added 39 mins ago
LC
Product Designer
Loblaw Companies Limited
Toronto, ON
- Full-time
…conversational and generative interfaces, recommendations, automation, and emerging interaction patterns while developing your judgment about where AI creates meaningful value - and where…
Added 39 mins ago
S
L'associé(e), Gestion de capital/Associate, Capital Management
Sagard
Montreal, QC
- Full-time
The Associate, Capital Management supports Sagard's capital markets and strategic growth agenda, working closely with senior leadership to advance the firm's equity story, capital-raising…
Added 39 mins ago
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Sr Manager Finance Commercial
''
Toronto, ON
- Full-time
As a trusted advisor to senior leaders, this role provides financial leadership across customer proposals, pricing, profitability analysis, innovation business cases, marketing investments,…
Added 39 mins ago
Principal Software Developer
Open Text Corporation
Waterloo, ON
We are seeking an experienced Principal Software Developer responsible for the design and implementation of services for ingestion, classification and extraction of content from business…
Added 39 mins ago
Sr. Software Developer
Open Text Corporation
Waterloo, ON
We are seeking an experienced Senior Software Developer who shares our passion for developing and maintaining the Enterprise Capture product line. OpenText’s Capture solutions are deployed…
Added 39 mins ago
Sr. Software Developer (Server, C++)
Open Text Corporation
Waterloo, ON
We are seeking an experienced Senior Software Developer (Server, C++) who shares our passion for developing and maintaining the Enterprise Capture product line. OpenText’s Capture solutions…
Added 39 mins ago
Sr. Quality Assurance Developer
Open Text Corporation
Waterloo, ON
We are seeking an experienced Senior Quality Assurance Developer who shares our passion for developing and maintaining the Enterprise Capture product line. OpenText’s Capture solutions are…
Added 39 mins ago
GE
Business Analyst
GFL Environmental Inc.
Vaughan, ON
- Full-time
Stakeholder Management: The ability to connect with senior business leaders to understand project priorities and align on success metrics and keep project efforts focused on achieving the…
Added 39 mins ago
A
Staff Developer
AtkinsRéalis
Toronto, ON · Montreal, QC
- Full-time
…Analytics team delivers enterprise data platforms, analytics, automation, and AI capabilities that support critical business processes across finance, operations, projects, people, and…
Added 54 mins ago
T
Senior Manager, KYC Technology and Capabilities Enablement (5579)
TD
Toronto, ON
- Full-time
…technology enablement across the KYC program within FCRM. The Senior Manager, KYC Technology Enablement will define and articulate a compelling future state vision for KYC, connect Canadian…

Robert Half

Senior System Administrator

Newmarket, ON, Canada

$115,000 to $135,000 CAD / year · Full-time

Apply About employer

Applications open in a new tab.

Job details

Pay: $115,000 to $135,000 CAD / year
Job type: Full-time
Apply by: Nov 6, 2026
Experience: 5+ years of infrastructure, systems administration, or IT operations experience
Posting language: English
Posted: Oct 7, 2026

Original job description

Robert Half is exclusively partnered with a well-established organization in Newmarket that is looking to hire a Senior Systems Administrator to lead infrastructure, security, and IT operations across the business.

This is a highly visible role that combines hands-on technical leadership with stakeholder engagement, vendor management, and strategic planning. The successful candidate will play a key role in modernizing the environment while helping the organization move further toward a cloud-first future.

What You'll Be Working On

This is not a traditional "keep the lights on" Systems Administrator position. The goal is to bring in someone who can take ownership of infrastructure operations, lead continuous improvement initiatives, and become the go-to infrastructure resource for the business.

Responsibilities include:

Owning day-to-day infrastructure and operational support

Managing and mentoring the Network Administrator

Partnering with the MSP and managing the vendor relationship

Responding to issues affecting internal users and external clients

Identifying opportunities for infrastructure improvements and modernization

Making security recommendations and driving best practices

Supporting disaster recovery, redundancy, and business continuity initiatives

Leading and contributing to infrastructure-related projects

Acting as a trusted technology advisor to leadership and business stakeholders

This role offers significant autonomy and influence, with the objective of allowing the VP, IT to transition away from day-to-day operational IT responsibilities.

Technology Environment

Microsoft environment

Hybrid Active Directory

Azure / Entra ID

Windows Server

Exchange Online & on-prem Exchange

SQL Server

SharePoint

Sophos Firewalls

DNS / DHCP

Virtualization technologies

PowerShell automation

Telephony and voice technologies

Disaster recovery and redundancy solutions

Upcoming Projects

Enhancement of disaster recovery and redundancy capabilities

Continued cloud transformation initiatives

Client portal deployment and supporting infrastructure

Ongoing telephony modernization projects

Security improvements and operational automation

What We're Looking For

5+ years of infrastructure, systems administration, or IT operations experience

Strong Microsoft infrastructure expertise

Experience supporting hybrid cloud environments

Network, security, and systems administration experience

Strong troubleshooting and problem-solving skills

Experience managing vendors or MSP relationships

Excellent communication and stakeholder management abilities

Comfortable working directly with clients and senior leadership

A passion for technology and continuous improvement

Automation mindset with PowerShell or similar scripting experience

Why Consider This Opportunity?

Opportunity to become the senior infrastructure leader within the organization

Broad ownership across infrastructure, security, operations, and vendor management

Executive visibility and influence

Stable organization with a long-tenured technology team

100% employer-paid benefits

RRSP matching up to 6%

Annual salary reviews

Paid certifications and professional development

Free onsite parking

7-hour workday (8:30am - 4:30pm)

Apply About employer

More about this job

Responsibilities

Own infrastructure operations and support, lead and mentor the Network Administrator, manage the MSP relationship, and respond to issues affecting users and clients. Drive infrastructure modernization, security, disaster recovery, continuity, and related projects while advising leadership and business stakeholders.

Requirements

Requires at least five years of infrastructure, systems administration, or IT operations experience, strong Microsoft infrastructure expertise, and experience with hybrid cloud, networking, security, and systems administration. Candidates should also bring troubleshooting ability, vendor or MSP management experience, strong communication skills, and scripting or automation experience such as PowerShell.

Skills

Microsoft Infrastructure
Hybrid Cloud Environments
Systems Administration
IT Operations
Network Administration
Cybersecurity
Azure And Entra ID
Active Directory
Windows Server
Exchange Online
SQL Server
SharePoint
PowerShell Automation
Disaster Recovery
Vendor Management
Stakeholder Management

Benefits

Employer-Paid Benefits
RRSP Matching Up To 6%
Annual Salary Reviews
Paid Certifications And Professional Development
Free Onsite Parking
7-Hour Workday

Visa sponsorship

Not detected in the job text

Keywords

Microsoft Environment
Hybrid Active Directory
Azure
Entra ID
Windows Server
Exchange Online
On-Premises Exchange
SQL Server
SharePoint
Sophos Firewalls
DNS
DHCP
Virtualization
PowerShell
Telephony
Voice Technologies
Disaster Recovery
Redundancy
Business Continuity
Cloud Transformation
Infrastructure Modernization
Security Best Practices
Managed Service Provider
Vendor Management
Client Portal
Operational Automation

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