Senior Systems & Infrastructure Engineer - Server Virtualization

Role Summary:We are looking for an experienced Senior Systems & Infrastructure Engineer (Level 4) to support our US operations during US Eastern Time business hours. As a Level 4 engineer, you are the final technical escalation point for server and infrastructure issues, owning complex incident resolution, root cause analysis, and infrastructure improvements across a hybrid (on-premises and cloud) environment.Key Responsibilities:- Act as Level 4 escalation point for critical server, virtualization, storage, and infrastructure incidents.- Administer, maintain, and optimize Windows Server and Linux environments.- Manage and troubleshoot virtualization platforms (VMware vSphere/ESXi, Hyper-V).- Manage Active Directory, Group Policy, DNS, DHCP, and Entra ID identity services.- Support and administer hybrid cloud infrastructure on Microsoft Azure.- Own patch management and vulnerability remediation for servers.- Manage backup, recovery, and disaster recovery solutions.- Monitor infrastructure health and performance.- Perform root cause analysis (RCA) for major incidents.- Automate repetitive tasks using PowerShell, Bash, Python, Ansible, or Terraform.- Apply security best practices and server hardening aligned with CIS benchmarks.- Manage incidents, problems, and changes through the ITSM platform following ITIL processes.- Create and maintain technical documentation and runbooks.- Mentor Level 1 - 3 engineers.- Communicate clearly with US-based client stakeholders.Required Skills :- 8+ years of experience in server, systems, or infrastructure engineering, including at least 2 years at an L3/L4 level.- Expert-level knowledge of Windows Server (2016/2019/2022).- Strong experience with VMware vSphere and/or Microsoft Hyper-V.- Deep understanding of Active Directory, Group Policy, DNS, DHCP, and PKI.- Hands-on experience with Microsoft Azure and Microsoft 365/Exchange hybrid environments.- Solid knowledge of storage, backup, and DR solutions (e.g., Veeam, Commvault, Azure Backup, SAN/NAS).- Proficiency in PowerShell and scripting/automation.- Working knowledge of networking fundamentals (TCP/IP, VLANs, firewalls, load balancers, VPN).- Experience working in ITIL-aligned environments and with ITSM tools.- Excellent written and verbal English communication skills.- Willingness to work in the US Eastern Time shift.Shift & Working Conditions:- Shift aligned to US Eastern Time business hours (approximately 9:00 AM - 6:00 PM ET).- Collaboration with an international team across time zones. (ref:hirist.tech)