Job Title: Senior Systems Engineer
Department: Information Technology
Reporting to: Manager, IT Operations
Location: Mississauga, ON
Vacancy Status: This position is vacant.
Greenfield is looking for a Senior Systems Engineer to join our growing team.
Overview The Senior Systems Engineer will be responsible for monitoring and maintaining our enterprise environment. The role will include analysis, planning and implementation of complex solutions ranging from software and service stacks to entire datacenter roll outs and migrations.
Who You Are Possesses Company values of honesty, integrity, respect, commitment and open to change, while modelling the Company Core Principles in all activities
Ability to foster collaborative, cross department relationships to meet common objectives
Strong verbal and written communication skills to convey findings to non‑technical stakeholders
Must be able to work independently and take initiative on projects
Must be able to work on a team and inspire increased productivity from teammates
Must be able to think and adapt quickly to meet business needs
A natural curiosity to explore system improvements and persistence to solve challenging problems
Your Experience Should Include Minimum of 10 years’ work experience in operations and infrastructure
4+ years of experience working in public cloud, M365 and similar technologies
2+ years of experience as a senior team member executing complex projects and deliverables
Extensive knowledge and experience with enterprise hardware and virtualization stacks (Cisco UCS, VMWare, SANs, ISCSI networks)
Deep understanding on VMware’s platform (VCF preferred)
Experience with backup platforms, methodologies and validation techniques (Veeam preferred)
Solid knowledge maintaining Active Directory domains and Entra ID environments
Solid knowledge of networking technologies and concepts
Exceptional written and verbal communication skills




Bonus Points If You Have Any of These Experience with Open‑Source platforms (Proxies, HA, Web services, Monitoring tools)
Experience with developing KPIs
Experience with DevOps (ADO) methodologies
Experience with MDM platforms (Intune preferred)
Copilot Studio and Power Platform experience
Job Responsibilities Collaborate closely with Operations team members and the wider IT Dept to offer solutions to business needs
Maintain and support VMWare, Active Directory, SANs and other components that comprise an on‑premises enterprise environment
Work with the IT Dept and business to develop and maintain backup and recovery strategies
Identify and research high‑value improvements to physical and virtual infrastructure
Maintain and tune monitoring tools to provide validated alerts when needed and limit alert storms and fatigue
Develop methods to facilitate non‑disruptive update and upgrade paths for enterprise systems
Ability to automate where possible using various tools (Scripting, Power Automate/Logic Apps, Azure Arc functions)
Stay current and knowledgeable of new technologies and processes within enterprise IT and manufacturing spaces
Exceptional communicator who can collaborate with stakeholders to gather and understand business related needs
Develop and maintain process‑related documentation
Troubleshoot and support escalations and incidents
Follow Information Technology policies and industry best practices
Other duties as assigned
Total Compensation & Care Base salary dependent on experience and demonstrated performance – $120,000 to $130,000
Formal and informal training opportunities
Comprehensive health and dental benefits
Income protection: short‑ and long‑term disability coverage, life insurance, paid personal sick time
Vacation time exceeding industry standards
Company funded retirement savings program with individual contribution opportunities
Meaningful and challenging work
Curated intentional culture focused on growth and development, engagement, and communication

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📌 Senior Systems Engineer (Ontario)
🏢 Greenfield Global
📍 Ontario