Infrastructure Engineer _ Windows Server

Global Sumi Technologies Inc.,; Richmond (VA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Global Sumi Technologies Inc. seeks a Senior Infrastructure Engineer to manage Windows Server environments across on-premises and cloud-based infrastructure. The role requires hands-on experience with upgrades, migrations, remediation, and production support in a hybrid setup.

Ideal candidates will have strong networking knowledge, security and patching expertise, and experience with automation using PowerShell. Certifications in Microsoft and networking are preferred.

Qualifications

• Extensive experience managing Windows Server in on-prem and cloud environments.
• Proficient in PowerShell scripting and automation.
• Familiar with security hardening, patching, and compliance.
• Experience with server migrations and hybrid infrastructure.

Responsibilities

• Administer, maintain, and optimize Windows Server environments across on-premises and cloud infrastructure.
• Perform OS upgrades, patching, testing, and ongoing system updates for reliability and security.
• Develop automation scripts to execute repetitive tasks and improve efficiency.
• Lead server migrations and workload transitions from on-prem to cloud platforms.

Skills

Windows Server

PowerShell

Automation

Migrations

Security

Networking

SCCM

Hybrid Cloud

Tools

Azure

AWS

Job description

We are seeking a highly skilled Senior Infrastructure Engineer with extensive experience managing Windows Server environments in both on-premises and cloud-based settings.

Our Client is seeking an experienced Senior Infrastructure Engineer to support and enhance its hybrid infrastructure environment. The ideal candidate must possess strong technical expertise across Windows Server, cloud platforms, security, patching, automation, and production application support. This role requires in-depth and hands-on experience performing upgrades, migrations, remediation, and troubleshooting within mission-critical systems.

The Senior Infrastructure Engineer will work across diverse technologies including Java, .NET, Oracle, SQL, Microsoft Dynamics, and warehouse platforms, supporting both server-level and complex production application needs. The engineer must also demonstrate strong networking knowledge, including deep familiarity with OSI layers and network protocol behavior. Preferred qualifications include Microsoft- and network-focused certifications.

Key Responsibilities

Infrastructure Operations & Administration

• Administer, maintain, and optimize Windows Server environments across on-premises and cloud-based infrastructure.
• Perform OS upgrades, patch installation, testing, and ongoing system updates to ensure reliability and security.
• Develop and use PowerShell scripts and other automation tools to execute centralized and repetitive tasks efficiently.
• Lead and execute server migrations, including transitioning workloads from on-premises systems into cloud platforms.

Security & Compliance

• Implement and maintain security configurations for servers, including endpoint protection, access control, and hardening standards.
• Conduct vulnerability remediation for servers and applications to maintain security compliance.
• Work with security tools and processes to ensure consistent protection and monitoring.

Patching, Monitoring & Automation

• Manage patching cycles and use SCCM or similar platforms for automated patch deployment and reporting.
• Maintain ongoing monitoring and performance assessment of infrastructure services to identify and resolve issues proactively.

Backup & Disaster Recovery

• Oversee routine backup operations and support recovery processes for mission-critical systems.
• Develop, refine, and support Disaster Recovery (DR) strategies to minimize downtime and protect data integrity.

Production Application Support

• Provide advanced server-level support for enterprise applications using .NET, Java, SQL, Oracle, Microsoft Dynamics, and warehouse technologies.
• Troubleshoot high-impact production issues across hybrid infrastructure and middleware layers.

Networking & Systems Integration

• Apply deep knowledge of OSI model layers and networking protocols to diagnose connectivity and application issues.
• Collaborate with cross-functional teams to support application deployments and infrastructure enhancements.

Communication & Collaboration

• Translate business or user requests into actionable technical solutions and communicate effectively in English, both verbally and in writing.
• Work closely with the IT Portfolio Manager and Infrastructure & Operations teams to align engineering efforts with organizational needs.