Senior Infrastructure Engineer

ESSENTIAL DUTIES AND RESPONSIBILITIES: 

• Lead the design, planning, and implementation of new infrastructure solutions and upgrades, ensuring alignment with business objectives and industry best practices. 

• Proactively manage and optimize performance, capacity, and availability of all critical IT infrastructure components, including Windows Server environments, virtualization platforms (e.g., VMware, Hyper-V), and storage solutions. 

• Configure, maintain, and troubleshoot complex network environments, including LAN, WAN, VPN, and wireless networks, optimizing for performance and security. Manage firewall rules, routing, and network segmentation. 

• Design, implement, and manage cloud-based infrastructure solutions (e.g., Azure, AWS) and hybrid environments, leveraging services like Office 365, Microsoft Entra ID, and other SaaS/PaaS offerings. 

• Implement, enforce, and audit comprehensive security measures, including advanced firewall configurations, intrusion detection/prevention systems, vulnerability management, and regular security assessments. Ensure strict compliance with organizational IT policies, HIPAA, and other relevant industry regulations. 

• Develop and implement automation scripts and tools (e.g., PowerShell, Python) to streamline routine tasks, improve efficiency, and ensure consistency in infrastructure deployments and management. 

• Lead the development, implementation, and regular testing of robust disaster recovery and business continuity plans, ensuring data integrity and rapid system restoration. 

• Provide expert-level (Tier 3/4) support for complex hardware, software, and network issues, serving as the final escalation point for critical infrastructure problems. 

• Provide technical guidance and mentorship to junior team members, fostering their growth and knowledge within the IT infrastructure domain. Collaborate effectively with other IT teams and departments. 

• Create and maintain comprehensive, high-quality documentation for all infrastructure configurations, processes, runbooks, and architectural diagrams. 

• Interface with technology vendors for support, procurement, and strategic planning related to infrastructure solutions. 

EDUCATION, CERTIFICATIONS, AND EXPERIENCE: 

• Bachelor's degree in Computer Science, Information Technology, or a related field (Master's preferred). 

• Industry-recognized certifications are highly preferred, such as:  

• Microsoft Certified: Azure Administrator Associate, Azure Solutions Architect Expert 

• CompTIA Security+, CySA+, CASP+ 

• Cisco CCNA/CCNP 

• VMware Certified Professional (VCP) 

• 5+ years of experience in a Senior System Administrator, Infrastructure Engineer, or similar advanced IT infrastructure role. 

• Demonstrated experience leading infrastructure projects and initiatives. 

KNOWLEDGE, SKILLS AND ABILITIES: 

• Expert-level knowledge of Windows Server operating systems, Active Directory, Group Policy, DNS, DHCP, and related services. 

• Deep expertise in virtualization technologies, particularly VMware ESXi, vCenter, and Hyper-V. 

• Extensive experience with network design, configuration, and troubleshooting (TCP/IP, routing,