Infrastructure Administrator

At Trifecta, we are more than just a technology company. We are a community of innovators, collaborators, and problem solvers dedicated to driving positive change in the world of technology. We are a dynamic organization that embraces diversity, fosters inclusion, and values the unique contributions of each of Trifecta Teammates. At Trifecta you will find a supportive and inclusive culture, endless opportunities for growth and development, and a vibrant community of passionate professionals dedicated to shaping the future!

About the role

We are seeking a highly motivated and detail-oriented Infrastructure Administrator to manage and support Trifecta and client on-prem and cloud-based infrastructure. This role is responsible for maintaining secure, reliable, and scalable systems across physical, virtual, and cloud environments. The ideal candidate is proactive, solutions-focused, and comfortable working in a fast-paced environment with multiple priorities. This is a hybrid role.

Key Responsibilities

Infrastructure and System Administration

• Administer Windows Server environments (Active Directory, DNS, DHCP, GPO)
• Manage multi-site virtualization platforms (VMware / Hyper-V / ProxMox)
• Maintain file servers, print services, and core routing services
• Provide technical administration of enterprise switches (Aruba, Fortinet, Unifi, Dell)
• Provide technical support and maintenance of campus fiber (single and multi-mode), Cat6, etc.
• Advanced knowledge of TCP/IP, SNMP, 802.11, VoIP, and PoE, DNS, DHCP, VLANs, and routing protocols (BGP, OSPF, RIP, etc.)
• Expert knowledge of SAN technologies (Dell, Synology, etc.)
• Monitor system performance, availability, and capacity
• Perform patch management and system upgrades
• Manage backups and disaster recovery processes
• Experience with backup solutions and disaster recovery
• Knowledge of network automation and scripting (PowerShell, Python, etc.)
• Familiarity with Jira or Freshdesk ticketing systems, and IT documentation platforms

Cloud Administration

• Administer Microsoft 365 (Exchange Online, SharePoint, Teams, OneDrive)
• Manage hybrid Microsoft environments (Azure AD, Entra ID, Intune, VMs, storage)
• Support hybrid hosting environments and cloud connectivity (site-to-site VPN, SD-WAN, direct connections)
• Configure and monitor cloud security and compliance controls
• Experience with Intune or similar MDM management platforms for Apple and Windows devices

Security and Compliance

• Implement CrowdStrike and ESET endpoint protection and security best practices
• Maintain DUO and Microsoft MFA, conditional access policies, and role-based access control
• Conduct regular CrowdStrike and Nessus vulnerability remediation
• Ensure systems meet internal and regulatory compliance requirements
• Knowledge of monitoring tools (Zabbix, Nagios, SolarWinds, PRTG, etc.)
• Experience with enterprise firewalls and security technologies
• Knowledge of cybersecurity frameworks and best practices

User and Operational Support

• Provide Tier 2/3 technical support
• Troubleshoot complex infrastructure and cloud-related issues
• Document systems, processes, and procedures
• Collaborate with vendors and internal stakeholders

Required Qualifications

• Primary residence within 2 hours of Allentown, PA
• Bachelor’s degree in Information Technology, Computer Science, or related field
• 7+ years of Network or Systems Administration experience
• 7+ years of Microsoft 365 and/or Azure administration
• Advanced networking certifications such as CCNA, CCNP, Fortinet NSE, or equivalent
• Microsoft certifications (AZ-104, MS-102, etc.)
• Experience in a Managed Services (MSP) environment
• Excellent troubleshooting and problem-solving skills

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