Senior Systems & Infrastructure Engineer - Server Virtualization
First seen by Alion on Nov 4, 2026.
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.
Skills
IT Infrastructure, Server Virtualization, Virtualization, Storage, Active Directory, Linux Server, Windows Server, IT Disaster Recovery, Patch Management, VMware, Azure