Junior IT System & Security Administrator (M365)

Mercantile Bank; Wyoming (MI); On-site; USD 65,000 - 95,000; Full time

Benefits offered by this job

Medical benefits

Bonus opportunities

401k match

Life insurance

Tuition reimbursement

Volunteer opportunities

Job summary

Mercantile Bank is seeking an IT System and Security Administrator I to help keep our technology reliable, secure, and aligned with our community-focused mission.

Responsibilities include partnering with Information Security in M365, Defender and Entra ID, managing Windows Server services, and serving as the primary escalation contact for IT systems and the help desk. A Bachelor's degree and 3–5 years of related experience are expected.

Qualifications

• 3–5 years related experience; Bachelor's degree.
• Extensive knowledge of M365 administration, security tools, and Entra.
• Knowledge of Windows server operating systems (AD, GPO, DNS/DHCP), VMware, backup systems, storage area network, server hardware, basic Linux, and Cisco networking devices.

Responsibilities

• Review overnight alerts, security dashboards, and patch/vulnerability queues to ensure systems are stable and risks are addressed.
• Coordinate change windows, validate backups, and document outcomes for audit-ready traceability.
• Collaborate with IT leadership and vendors to keep deliverables on track; coach teammates to build shared capability for secure operations.
• Serve as escalation point for IT System and Security issues and support the help desk.

Skills

M365 administration

Entra

Security tools

Analytical thinking

Education

Bachelor's degree

Tools

VMware

Cisco networking

Linux

Job description

Mercantile Bank is seeking an IT System and Security Administrator I to help keep our technology reliable, secure, and aligned with our community-focused mission.

Responsibilities include partnering with Information Security in M365, Defender and Entra ID, managing Windows Server services, and serving as the primary escalation contact for IT systems and the help desk. A Bachelor's degree and 3–5 years of related experience are expected.