Senior Systems Administrator

Be the Spark! Join our passionate team and help us to achieve great things in our community! The Senior Systems Administrator (Tier 3) is responsible for the design administration and optimization of the organizations cloud and hybrid IT environments with a strong focus on Microsoft 365 Azure and modern endpoint management. This role serves as the highest level of technical escalation providing expert troubleshooting and root cause analysis to ensure system reliability performance and security. It establishes operational consistency through standards documentation and knowledge sharing while supporting capability development across IT support teams. It also contributes to strengthening internal expertise by mentoring Tier 1 and Tier 2 staff.

In this role you will:

• Design and implement improvements to Microsoft 365 and Azure environments to enhance performance scalability cost optimization and reliability.
• Contribute to infrastructure and cloud projects by providing senior technical expertise and design input.
• Lead implementation of new technologies and solutions ensuring alignment with architecture standards and organizational requirements.
• Assist in onboarding new services and integrating them into existing environments.
• Define and enforce operational standards across cloud services endpoint management and identity systems.
• Develop maintain and continuously improve standard operating procedures system documentation and knowledge base articles.
• Ensure documentation and knowledge resources enable Tier 1 and Tier 2 teams to resolve issues efficiently and consistently.
• Partner with IT Security to implement and maintain security controls across Microsoft 365 Azure and endpoint environments.
• Ensure adherence to organizational and regulatory compliance standards including audit and security requirements where applicable.
• Support vulnerability management conditional access policies device compliance and security audit readiness.
• Manage Azure infrastructure including virtual machines networking storage Azure Virtual Desktop and identity integrations.
• Administer Microsoft 365 services including Exchange Online Teams SharePoint and Entra ID.
• Lead configuration and management of Microsoft Intune for device compliance configuration profiles application deployment and security policies.
• Design and maintain Windows Autopilot deployment profiles and zero-touch provisioning processes.
• Ensure endpoint security posture aligns with organizational security and compliance requirements.
• Monitor system health performance and security across cloud and endpoint environments.
• Identify and remediate risks inefficiencies and recurring issues proactively.
• Partner with the security and infrastructure teams to support patching updates and lifecycle management of systems and services while ensuring minimal disruption to operations.
• Act as the primary escalation point for complex Tier 2 and Tier 3 incidents across Microsoft 365 Azure endpoint management and identity services.
• Lead deep-dive troubleshooting and root cause analysis for recurring or critical incidents.
• Own resolution of high-impact incidents and ensure proper documentation and post-incident improvement actions are completed.
• Provide technical mentorship coaching and guidance to Tier 1 and Tier 2 support staff.
• Identify skill gaps and contribute to structured training and development plans.
• Perform other duties as assigned.

What you need to succeed:

• Commitment to the YMCAs Mission Vision and Values
• Focus on the health safety and wellbeing of all children youth and vulnerable people in YMCA programs including understanding legal and moral obligations related to reporting suspected child abuse to Child Protection Services
• YMCA Competencies: Accountable Relationship-Builder Improvement-Orientated Team Player & Leader Equity and Wellbeing Promoter

You bring:

• Microsoft Certified: Azure Administrator Associate (required or equivalent).
• Additional certifications in Microsoft 365 Endpoint Management or Security are considered strong assets.
• ITIL v4 Foundations preferred.
• 5 years of system administration experience with a strong focus on Microsoft 365 and Azure environments.
• Demonstrated experience operating at a Tier 3 support level.
• Microsoft 365 experience including Exchange Online Teams SharePoint and Entra ID (Azure Active Directory).
• Azure experience including virtual machines networking storage Azure Virtual Desktop and identity integration.
• Endpoint management experience including Microsoft Intune Autopilot device compliance and configuration policies.
• Identity and access experience including Entra ID Conditional Access multi-factor authentication and role-based access control.
• Core infrastructure experience including Windows Server Active Directory DNS DHCP and Group Policy.
• Security tooling experience including platforms such as AvePoint Prisma Access Tanium Cortex XDR or similar solutions.
• Monitoring and IT service management tool experience including Jira Service Management Confluence or equivalent platforms.
• Strong analytical and troubleshooting skills with a root cause mindset.
• Ability to translate complex technical concepts into actionable guidance.
• Proven experience in documentation and standard operating procedure development.
• Excellent communication and mentorship abilities.
• Strong ownership accountability and service orientation.
• Excellent understanding of diversity inclusion and equity including the ability to identify and address barriers work effectively with diverse stakeholders and integrate equity into service delivery practices.

Why work for the YMCA

The YMCA of Greater Toronto is a charity that ignites the potential in people helping them grow lead and give back to their communities. We are committed to helping our employees reach their full potential and are recognized as a great place to work. We offer meaningful jobs and the opportunity to make a difference in the lives of individuals and the health of our communities. See what you can expect from the YMCA here.

Joining the Y means contributing to over 170 years of providing opportunities for people to shine through programs and services such as health and fitness licensed child care camps employment and immigrant services education and training and services for youth families and seniors. Learn more in our strategic plan Greater Together which outlines how we are focused on building communities where people feel healthier and more connected to their neighbours.

The YMCA of Greater Toronto is committed to Diversity Equity Inclusion and Belonging. We strive to remove barriers to employment and recognize that diverse staff who reflect the communities we work in enrich the experiences of our participants and our team. As an equal opportunity employer we invite applications from all qualified candidates including racialized people/people of colour Indigenous Peoples disabled people/people with disabilities and members of 2SLGBTQIA communities.

If we can make the recruitment process more accessible for you please let us know when we reach out about a job opportunity so we can work with you to accommodate your needs.

In keeping with our commitment to safety and child protection job offers are contingent on the successful completion of a Police Records Check. Within the first four months and every three years thereafter a Vulnerable Police Records Check is required. Learn more about these checks here.

Required Experience:

Senior IC