System Administrator Security Operations

Job Description

Job Description

Own the security, protect the infrastructure, and take the lead on PKI in a hands-on role where your expertise makes a real impact every day.

FT

Hybrid

90-95K

SecOps,, XDR/MDR, Incident Response, Vulnerability Management, DigiCert, PKI, SSL/TLS, Windows Server, Active Directory, IT Infrastructure, Firewalls

We're seeking a hands-on Infrastructure & Security Administrator to support and secure a business's IT environment. This role combines systems administration, infrastructure maintenance, and day-to-day security operations, with primary ownership of DigiCert and the SSL/TLS certificate lifecycle.

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.

\nCompany Description

Top Prospect Group founders and management team offer more than 25 years
of experience in Information Technology and Creative Staffing. Our fundamental goal is to build successful relationships resulting in accurate job and prospect representations. Top Prospect Group meets with those we work with face-to-face to garner a better understanding of candidate or client requirements. By leveraging our experience and market insight, we are then able to provide a more consistent recruitment process.

Company Description

Top Prospect Group founders and management team offer more than 25 years\r\n of experience in Information Technology and Creative Staffing. Our fundamental goal is to build successful relationships resulting in accurate job and prospect representations. Top Prospect Group meets with those we work with face-to-face to garner a better understanding of candidate or client requirements. By leveraging our experience and market insight, we are then able to provide a more consistent recruitment process.