Senior Systems & Network Infrastructure Engineer

Bellwether-Community-Credit-Union; Manchester (NH); On-site; USD 85,000 - 115,000; Full time

Job summary

Bellwether Community Credit Union is seeking a Systems Administrator to own and modernize our core IT infrastructure. This role focuses on Windows Server, Active Directory, Microsoft 365, and virtualization, ensuring security and reliability across our environment.

You’ll work across our branches implementing zero-trust initiatives, automate tasks with PowerShell, and participate in on-call rotations to support business continuity. Strong collaboration and documentation are essential.

Qualifications

• 5+ years of experience in systems, infrastructure, or network administration.
• Hands-on experience with Windows Server, Active Directory, and Microsoft 365 (Entra ID, Exchange Online).
• Experience supporting virtualization platforms (VMware) and Cisco/Meraki networking.

Responsibilities

• Manage and maintain core infrastructure: Windows Server, Active Directory, Microsoft 365, virtualization, storage, and network systems.
• Support and improve network infrastructure across our branches and offices, including Cisco and Meraki technologies.
• Strengthen security and reliability: Maintain secure configurations, address vulnerabilities, support incident response, and ensure systems availability.
• Protect business continuity: Manage backup and recovery processes, perform restore testing, and support disaster recovery planning and exercises.
• Drive improvements: Contribute to upgrades, migrations, zero-trust initiatives, and automation projects using PowerShell or similar tools.
• Own projects and partnerships: Coordinate with vendors and service providers, troubleshoot complex issues, and provide Tier 2 support for escalated infrastructure and network problems.

Skills

Troubleshooting

Communication

Documentation

On-call rotations

Tools

Windows Server

Active Directory

Microsoft 365 / Entra ID / Exchange Online

VMware

Cisco Meraki

Backup/Recovery Solutions

PowerShell

Python

Power Automate

Job description

Bellwether Community Credit Union is seeking a Systems Administrator to own and modernize our core IT infrastructure. This role focuses on Windows Server, Active Directory, Microsoft 365, and virtualization, ensuring security and reliability across our environment.

You’ll work across our branches implementing zero-trust initiatives, automate tasks with PowerShell, and participate in on-call rotations to support business continuity. Strong collaboration and documentation are essential.