Senior System & Security Engineer

Core Responsibilities:

Infrastructure & Virtualization

• Design, implement, and manage enterprise-scale Windows technologies including server platforms, desktop platforms, Active Directory, Group Policy, DNS, Microsoft/VMware virtualization, and collaboration services.
• Assess and redesign existing infrastructure for scalability and performance
• Manage datacenter operations: power, cooling, racks, and cabling
• Deploy/manage virtualization platforms: VMware vSphere, Hyper-V, SCVMM
• Integrate and support hybrid environments with Azure services

Systems & Identity

• Administer AD, ADFS, Group Policy, Windows/Linux servers
• Manage hybrid identity: Azure AD, SSO, MFA
• Configure and optimize storage (SAN/NAS) and backup solutions (Veeam, Veritas, Acronis)

Networking & Security

• Design and maintain LAN/WAN, VLANs, spanning tree, firewall rules
• Administer and secure perimeter firewalls (Fortinet, Palo Alto)
• Implement and monitor security policies: access control, patching, vulnerability scanning
• Integrate SIEM tools and centralized logging for incident response
• Manage DDoS protection and web filtering via Cloudflare (WAF, Zero Trust)

Cloud & SaaS Management

• Manage Azure computer, networking, and storage resources
• Plan hybrid Microsoft 365 deployments
• Administer Google Workspace and ensure its security posture

IT Operations & Governance

• Define IT KPIs, track SLAs, and manage operations via ITSM tools (e.g., ServiceDesk Plus, ManageEngine)
• Lead and mentor junior engineers, driving a collaborative and growth-oriented culture