Job Description
Lead Systems Engineer

Location:
Markham, ON CORA Group | Information Technology

About the Role

CORA Group is seeking a passionate, forward-thinking Lead Systems Engineer who thrives on solving complex technical challenges, embracing emerging technologies, and building innovative enterprise solutions. At CORA, we foster a culture of innovation, collaboration, and continuous learning. We encourage creative thinking, technical excellence, and individuals who challenge the status quo to drive meaningful improvements. The ideal candidate is a hands‑on technologist with strong expertise in Microsoft enterprise technologies, cloud infrastructure, automation, and security. This individual will play a key role in modernizing our technology environment while ensuring our infrastructure remains secure, scalable, reliable, and efficient.

Position Overview

The Lead Systems Engineer serves as a senior technical subject matter expert responsible for designing, implementing, optimizing, and supporting CORA Group's enterprise infrastructure across cloud, on‑premises, and hybrid environments. This role combines solution architecture, hands‑on engineering, technical leadership, project delivery, and Level III support, be on an on‑call rotation supporting help desk operations from time to time, with a primary focus on infrastructure modernization, automation, operational resilience, and continuous improvement.

Key Responsibilities

- Infrastructure Engineering & Architecture Design, implement, and maintain secure, scalable, and resilient enterprise infrastructure solutions. Lead infrastructure modernization initiatives, technology evaluations, proof‑of‑concept testing, and technical implementations. Translate business requirements into practical,



cost‑effective technology solutions. Establish technical standards, architecture documentation, and operational runbooks. Proactively identify emerging technologies and opportunities to improve infrastructure performance and efficiency.
- Cloud & Enterprise Technologies Engineer and support Microsoft 365, Azure, Entra ID, Intune, Active Directory, and Windows Server environments.
- Cloud Infrastructure, Security & Operations (AWS & Azure): Manage, secure, and optimize cloud environments across AWS and Microsoft Azure, including compute, storage, databases, networking, and connectivity. Implement identity and access management, least‑privilege security, governance, and compliance best practices. Ensure performance, availability, and resilience through proactive monitoring, troubleshooting, automated backups, and disaster recovery planning. Drive cost optimization, resource efficiency, and infrastructure automation using Infrastructure as Code (IaC) tools such as Terraform and native cloud deployment solutions. Manage hybrid cloud infrastructure, identity services, endpoint management, and SaaS integrations. Optimize infrastructure availability, performance, security, and operational costs. Support enterprise backup, disaster recovery, and business continuity capabilities.
- Security, Automation & Operational Excellence Incorporate security best practices, compliance requirements,



and risk management into infrastructure solutions. Drive automation using PowerShell, APIs, and contemporary infrastructure management tools. Identify and remediate infrastructure vulnerabilities, performance issues, and technical debt. Improve operational efficiency through standardization, proactive monitoring, and continuous improvement. Evaluate emerging technologies, including AI‑enabled IT operations and intelligent automation, where appropriate.
- Technical Leadership & Support Serve as a Level III escalation point for complex infrastructure and enterprise technology issues. Lead technical troubleshooting, root cause analysis, and resolution of critical incidents. Provide technical guidance and mentorship to fellow engineers and IT team members. Collaborate with cybersecurity teams, business stakeholders, and technology vendors. Lead infrastructure projects from design through implementation and operational handoff.

Required Qualifications

- Bachelor's degree in Computer Science, Information Technology, or equivalent professional experience.
- 5–7+ years of progressive experience in enterprise systems engineering and infrastructure administration.
- Strong hands‑on experience with: Microsoft 365: Exchange Online, Teams, SharePoint Online.
- Identity & Endpoint Management: Entra ID, Active Directory, Group Policy, Intune.
- Cloud Infrastructure: Microsoft Azure, hybrid cloud environments, SaaS/IaaS technologies.
- Server Technologies: Windows Server, DNS, DHCP, virtualization, and enterprise networking fundamentals.
- Security & Resilience: Patch management, infrastructure hardening, backup/recovery, disaster recovery, and monitoring.
- Automation: PowerShell

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