Senior Windows & M365 Systems Leader (Hands-On)

IOOF Holdings Limited; Australia; Remote; AUD 140,000 - 180,000; Full time

Job summary

Insignia Financial is recruiting a experienced Systems Engineer to lead a team of Infrastructure Engineers, balancing hands-on technical work with people leadership across Windows Server and Microsoft 365 environments.

You will coach and develop up to 10 engineers, drive operational excellence, manage vulnerabilities and oversee incident and ticket processes while shaping infrastructure services for a modern enterprise.

Qualifications

• Strong experience supporting enterprise Windows Server and Microsoft 365 environments.
• Experience leading, mentoring or developing technical teams.
• Knowledge of Active Directory, Exchange, Entra ID and broader infrastructure technologies.
• Experience within service delivery environments, including incident, ticket and SLA management.
• Strong stakeholder engagement, communication and problem-solving skills.
• Collaborative leadership style with a passion for helping others succeed.
• Ability to balance technical delivery, operational oversight and people leadership responsibilities.

Responsibilities

• Leading, coaching and developing a team of Infrastructure Engineers to foster a high-performing culture.
• Overseeing ServiceNow queues, ticket management, escalations and SLA performance across the team.
• Driving operational excellence across Windows Server and Microsoft 365 environments.
• Managing vulnerability remediation, alert monitoring and platform health activities.
• Supporting Active Directory, Exchange, Entra ID and core infrastructure services.
• Leading continuous improvement initiatives, automation opportunities and operational uplift activities.
• Contributing to infrastructure projects, planning activities and technical solution design.
• Managing the team's on-call capability and ensuring effective support coverage.

Job description

Insignia Financial is recruiting a experienced Systems Engineer to lead a team of Infrastructure Engineers, balancing hands-on technical work with people leadership across Windows Server and Microsoft 365 environments.

You will coach and develop up to 10 engineers, drive operational excellence, manage vulnerabilities and oversee incident and ticket processes while shaping infrastructure services for a modern enterprise.