Hosting & Infrastructure Administrator

Description

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.

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 Power Shell 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…