Net Administrator

Greenfield Savings Bank is seeking a full‑time Network Administrator to support and enhance the Bank’s on‑premises and cloud‑based infrastructure. This role places a strong emphasis on security, reliability, and regulatory compliance. Core duties include managing WAN/LAN environments, firewalls, cloud networking, monitoring tools, and collaborating with Systems Administrators on cross‑functional infrastructure initiatives.

• Maintain, configure, and operate network infrastructure including routers, switches, firewalls, VPNs, and wireless systems
• Manage on‑premises and cloud networking components (e.g., Azure VNets, NSGs, VPN gateways, hybrid connectivity)
• Ensure proper configuration, patching, and lifecycle management of network devices and systems in alignment with Bank standards

• Implement and manage security technologies such as IPS/IDS, endpoint protection, anti‑malware/anti‑spam, and secure Wi‑Fi
• Support Zero Trust principles, network segmentation, MFA, and identity‑based access controls
• Monitor and respond to alerts from SIEM, network monitoring, and security tools
• Assist in maintaining compliance with FFIEC, GLBA, and other regulatory requirements
• Support virtualization platforms (Hyper‑V, VDI solutions) and cloud services (Microsoft 365, Azure)
• Coordinate with Systems Administrators on storage, server, and vulnerability‑related tasks, providing network‑level insight and troubleshooting

• Troubleshoot network and system issues; document findings and resolutions using the Bank’s ticketing and knowledgebase systems
• Provide Tier 2 support to Helpdesk staff for escalated hardware and software configuration issues
• Participate in data protection, disaster recovery, and business continuity planning and testing

• Create and maintain documentation including procedures, network diagrams, change control records, and project plans
• Contribute to the development and enforcement of policies related to LAN/WAN operations, security, and acceptable use
• Participate in vendor evaluations, technology assessments, and solution design discussions
• Work collaboratively with internal teams and external partners to support infrastructure initiatives

• Travel to branch locations as needed
• Participate in an on‑call rotation for after‑hours support
• Perform other duties as assigned

• Bachelor’s degree in an IT‑related field, or 3–5 years of equivalent experience
• Strong understanding of networking protocols and LAN/WAN technologies
• 2+ years of experience with Microsoft Windows, Microsoft 365, and Azure
• 2+ years of experience with Sophos, and/or Ubiquiti technologies
• Experience with virtualization platforms (Hyper‑V, VDI)
• Familiarity with SIEM, network monitoring, or observability tools
• Strong troubleshooting, analytical, and problem‑solving skills
• Ability to work independently and collaboratively across teams
• Ability to stay current with IT and cybersecurity trends
• Ability to occasionally move or lift equipment up to 40 lbs.
• Industry certifications in networking or security (e.g., CCNA, CCNP, Security+)
• Experience working in a financial institution or other regulated environment
• Experience implementing or supporting banking applications and systems
• Experience with scripting and automation (e.g., Power Shell)
• Familiarity with endpoint management (e.g., Intune, Azure Virtual Desktop)

Greenfield Savings Bank is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender, gender identity and/or expression, national origin, disability status, protected veteran status, age, marital status, or any other protected class.