Top Prospect Group is hiring: Infrastructure Administrator in Westfield

Key Responsibilities: Infrastructure Administration: Maintain Windows Server, Active Directory, endpoints, patching, backups, and general systems operations. Security Operations: Monitor XDR/MDR alerts, assist with incident investigations, coordinate remediation, and support vulnerability management and security hardening. PKI & Certificate Management: Own DigiCert administration, manage SSL/TLS certificates and renewals, maintain certificate inventories, and troubleshoot certificate-related issues. Network Security: Support firewall policies, DNS, access controls, and network security in collaboration with IT teams. Monitoring & Documentation: Maintain system and security documentation, track certificate expirations, and identify opportunities to improve reliability and reduce risk. Client Support: Communicate technical issues, remediation steps, and recommendations clearly to internal stakeholders and clients as needed.

Required Qualifications: Hands-on experience in IT infrastructure, systems administration, or a similar technical role. Working knowledge of security monitoring, incident response, vulnerability management, and remediation. Experience managing digital certificates, PKI, SSL/TLS, or a similar certificate management platform. Familiarity with Windows Server, Active Directory, DNS, firewalls, and network troubleshooting. Strong troubleshooting, documentation, and communication skills.

Preferred Qualifications: Experience with DigiCert or another certificate authority platform. Familiarity with XDR/MDR tools, Fortinet firewalls, NinjaOne/RMM, and backup solutions. Experience working in an MSP or client-facing IT environment. CompTIA Security+, CySA+, Fortinet, or related certifications.