What are the responsibilities and job description for the IT Infrastructure Administrator position at Alexander Group?
Description
Alexander Group: Decades of experience growing revenue for global companies
Alexander Group provides management consulting services to the world’s leading organizations. When clients need to grow revenue, they look to Alexander Group for data-driven insights, actionable recommendations, and most importantly, results.
Founded in 1985, we’ve served more than 3,000 companies around the world, across all industries. This experience gives us not only a highly sophisticated set of best practices to grow revenue — we also have a rich repository of industry data that informs all of our recommendations.
Our dedication to revenue growth and sales strategy has led to:
- More than 70% of our clients being Fortune 500 corporations
- Project work in more than 25 countries
- Extensive industry experience in B2B markets
Position Overview
We are looking for a versatile IT Infrastructure Administrator to support and maintain the company’s IT environment. This role combines network administration, systems management, Cloud administration and end-user support, ensuring reliable and secure operations across our business.
Key Responsibilities
Network & Connectivity
- Configure, monitor, and troubleshoot LAN/WAN, VPNs, wireless networks, and firewalls
- Optimize performance and ensure high availability of network resources
- Monitor and update network monitoring tools and configurations
Systems & Infrastructure
- Administer servers (Windows, Linux), virtualization (VMware, Hyper-V), and storage systems
- Manage Active Directory, DNS, DHCP, and group policies
- Support hybrid environments across on-premises and cloud platforms (Entra)
- Work with Cisco ISE and Meraki switches and access points, SFDC, Deltek, Microsoft 365
Cloud & Automation
- Provision and manage cloud infrastructure (compute, networking, identity, and security)
- Identify and implement automation opportunities for infrastructure management
- Support migration and optimization of workloads on-premise and in the cloud
Security & Compliance
- Maintain firewalls, IDS/IPS, endpoint protection, and access controls
- Support compliance with cybersecurity and data protection standards (ISO, NIST, GDPR)
- Monitor logs, investigate anomalies, and respond to security incidents
Collaboration & Support
- Partner closely with IT and DevOps teams to support business initiatives
- Provide Tier 2/3 support for escalated desktop and infrastructure issues
- Document infrastructure changes, maintain diagrams, and keep procedures current
Requirements
Education & Experience
- Bachelor’s degree in IT, Computer Science, or related field (or equivalent experience)
- 3–5 years of experience in network, systems, or infrastructure administration
Technical Skills
- Strong knowledge of TCP/IP, routing, switching, VPNs, and firewalls
- Experience with Windows and Linux server administration
- Familiarity with virtualization technologies (VMware, Hyper-V)
- Cloud certifications for Azure (Optional)
- Scripting and automation skills (PowerShell)
Soft Skills
- Proactive problem-solver with a continuous improvement mindset
- Strong communication and documentation skills
- Collaborative and dependable team player who thrives in a hands-on, on-site environment
Salary Range: $90,000-100,000; Bonus eligible
EEO Employer. Work Eligibility: Must be eligible to work in the U.S. with no current or future restrictions or sponsorship necessary. TN visa accepted.
Salary : $90,000 - $100,000