Hosting & Infrastructure Administrator

Description Position Summary The Hosting & Infrastructure Administrator is responsible for the strategic direction, administration, security, availability, and performance of the organization's hosting environments, infrastructure platforms, and related technologies. This position leads the planning, implementation, and support of on-premises, cloud, and hybrid hosting solutions while ensuring business continuity, operational excellence, cybersecurity compliance, and scalability. The Administrator serves as a technical leader and business partner, collaborating with internal teams, vendors, clients and business stakeholders to deliver reliable, secure, and cost-effective infrastructure services. This role may supervise technical staff and managed service providers while driving infrastructure modernization initiatives. Key Responsibilities Infrastructure Architecture & Engineering Design, implement, and maintain enterprise-class hosted infrastructure for multiple clients. Architect scalable, secure, and highly available server environments. Lead infrastructure upgrades, migrations, consolidations, and modernization projects. Evaluate emerging technologies and recommend improvements to client environments. Develop and maintain infrastructure standards and best practices. Systems Administration Administer Windows Server environments, including Active Directory, DNS, DHCP, Group Policy, Certificate Services, and file services. Manage virtualization platforms including VMware vSphere. Configure and maintain storage solutions including SAN, NAS, and virtual storage platforms. Perform operating system upgrades, lifecycle management, and server hardening. Monitor system performance and optimize infrastructure for reliability and efficiency. Cloud & Hosting Deploy and manage Microsoft Azure and Microsoft 365 environments. Support hybrid cloud infrastructure and cloud migrations. Implement cloud backup, disaster recovery, and business continuity solutions. Assist clients with cloud adoption and infrastructure modernization. Networking Design, configure, and troubleshoot: Firewalls, Layer 2/Layer 3 switching, Routing, VLANs, VPNs, Wireless infrastructure, Network security Maintain secure network architectures. Perform network assessments and recommend improvements. Backup & Disaster Recovery Design and manage enterprise backup solutions. Validate backup integrity through routine testing. Develop disaster recovery procedures and recovery documentation. Lead recovery efforts during critical incidents. Security & Compliance Implement infrastructure security best practices. Perform vulnerability remediation and security hardening. Manage privileged access and identity security. Support compliance initiatives including cybersecurity frameworks and client security requirements. Assist with incident response and forensic investigations when necessary. Project Leadership Lead server, storage, networking, and cloud implementation projects. Plan project timelines and technical deliverables. Coordinate with vendors, clients, and internal teams. Produce technical documentation for completed projects. Serve as the technical lead during client implementations and infrastructure upgrades. Technical Support Serve as the highest escalation point for complex technical issues. Troubleshoot advanced server, networking, virtualization, and cloud issues. Perform root cause analysis and implement permanent solutions. Participate in on-call rotation and respond to critical infrastructure incidents. Automation & Process Improvement Develop PowerShell scripts and automation solutions. Improve deployment processes and operational efficiency. Standardize infrastructure configurations across client environments. Identify opportunities to reduce manual processes through automation. Documentation Maintain detailed documentation for infrastructure, network diagrams, and system configurations. Develop standard operating procedures and knowledge base articles. Ensure documentation remains accurate and current. Mentorship & Leadership Mentor junior engineers and service desk technicians. Provide technical guidance during complex troubleshooting. Assist in developing engineering standards and operational procedures. Participate in technical training and knowledge sharing. Required Qualifications 7+ years of systems engineering or infrastructure administration experience. 3+ years working within a Managed Services Provider (MSP) environment preferred. Extensive experience with Windows Server administration. Advanced knowledge of: Active Directory, Group Policy, DNS, DHCP, IIS, PowerShell Advanced experience with VMware vSphere. Strong networking expertise including: TCP/IP, Routing, Switching, VLANs, VPNs, Firewalls, Wireless networking Experience with Microsoft Azure and Microsoft 365. Experience implementing backup and disaster recovery solutions. Excellent troubleshooting and problem-solving skills. Strong written and verbal communication skills. Ability to independently manage multiple client environments and projects. Experience with the following applications is preferred: Azure Virtual Desktop, Azure Site Recovery, Azure Backup, Microsoft Entra ID (Azure AD), Microsoft Intune, Microsoft Defender, Veeam Backup & Replication, Datto BCDR, Fortinet, SonicWall, Cisco, Meraki, or Ubiquiti networking, Storage platforms including Dell, Synology, NetApp, or HPE, ConnectWise Manage, ConnectWise Automate Preferred Certifications One or more of the following certifications are highly desirable: CISSP, VMware Certified Professional (VCP), Cisco CCNA or CCNP, Fortinet FCP/NSE, CompTIA Security+, CompTIA Network+, Veeam VMCE Success in This Role The Hosting & Infrastructure Administrator is a trusted technical advisor responsible for ensuring client environments are secure, resilient, and aligned with business objectives. Success in this role is demonstrated by delivering high-quality infrastructure solutions, leading complex technical projects, mentoring engineering staff, reducing operational risk through automation and standardization, and consistently providing exceptional service to clients. Requirements Knowledge, Skills, and Abilities Strong leadership skills. Advanced knowledge of enterprise hosting, virtualization, and cloud technologies. Excellent project management and organizational abilities. Strong analytical and troubleshooting skills. Ability to communicate technical concepts to non-technical stakeholders. Strong customer service orientation and business acumen. Ability to lead organizational change and technology modernization efforts. Physical Requirements Ability to sit and work at a computer for extended periods. Ability to occasionally lift and move IT equipment up to 40 pounds. Occasional travel between company locations may be required. Work Environment Professional office or hybrid work environment. Participation in on-call escalation rotations as required. Occasional evening or weekend work to support maintenance windows, upgrades, or critical incidents.