Systems Engineer - Windows Server, VMware, and AWS ,Citrix

Osi Digital Inc; Irvine (CA); On-site; USD 90,000 - 140,000; Full time

Job summary

OSI Digital Inc is seeking a Systems Engineer to support migrating Windows-based workloads from an on-premises datacenter to AWS. This onsite role will collaborate with infrastructure, application, networking, and security teams in Irvine, CA to assess systems, build migration plans, and execute workload migrations.

The ideal candidate brings hands-on Windows Server, VMware, and EC2 experience; Citrix experience is a plus.

Qualifications

• Hands-on systems engineering or infrastructure administration experience in enterprise environments.
• Strong Windows Server administration and troubleshooting skills.
• Experience managing VMware vSphere environments, including ESXi and vCenter.
• Practical experience deploying, configuring, and supporting AWS EC2 instances.
• Working knowledge of AWS networking and access controls, including VPCs, subnets, security groups, and IAM.
• Understanding of Active Directory, DNS, Group Policy, TCP/IP networking, and server storage.
• Experience supporting server migrations, infrastructure transitions, or datacenter consolidation initiatives.

Responsibilities

• Assess and document existing Windows servers and VMware configurations.
• Plan migration sequencing, cutover procedures, validation criteria, and rollback plans.
• Prepare AWS EC2 environments and migrate workloads with cross-team coordination.
• Administer Windows Server environments, patching, storage, and connectivity.
• Manage VMware vSphere, ESXi, and vCenter during migration.
• Validate server functionality, connectivity, performance, monitoring, and backup coverage after migration.
• Troubleshoot migration issues and provide post-cutover stabilization support.
• Maintain migration runbooks and knowledge-transfer materials.

Skills

Windows Server

VMware vSphere

AWS EC2

Active Directory

DNS

TCP/IP

Change management

Documentation

Collaboration

Tools

PowerShell

Citrix Virtual Apps and Desktops

AWS Migration Tools

Job description

Systems Engineer- Windows Server, VMware, and AWS, Citrix

Duration: 6 months
Location: Irvine, CA Onsite

We are seeking a Systems Engineer to support the migration of Windows-based workloads from an on-premises datacenter to AWS. This onsite role will work closely with infrastructure, application, networking, and security teams to assess existing systems, prepare migration plans, execute workload migrations, and provide post-migration support.

The ideal candidate brings hands-on experience administering Windows Server environments, managing VMware infrastructure, and deploying and supporting Amazon EC2 instances. Citrix experience is a plus.

Key Responsibilities

• Assess and document existing Windows servers, VMware virtual machines, application dependencies, and infrastructure configurations.


• Support migration planning, including workload readiness assessments, migration sequencing, cutover procedures, validation criteria, and rollback plans.


• Prepare AWS EC2 environments and migrate workloads in coordination with cloud architecture, networking, and security teams.


• Administer and troubleshoot Windows Server environments, including operating systems, services, patching, storage, and connectivity.


• Manage VMware vSphere, ESXi, and vCenter environments throughout the migration.


• Validate server functionality, connectivity, performance, monitoring, and backup coverage following migration.


• Troubleshoot migration issues and provide post-cutover stabilization support.


• Maintain system documentation, migration runbooks, configuration records, and knowledge-transfer materials.


• Follow established change management, security, and operational procedures.

Required Qualifications

• Hands-on systems engineering or infrastructure administration experience in enterprise environments.


• Strong Windows Server administration and troubleshooting skills.


• Experience managing VMware vSphere environments, including ESXi and vCenter.


• Practical experience deploying, configuring, and supporting AWS EC2 instances.


• Working knowledge of AWS networking and access controls, including VPCs, subnets, security groups, and IAM.


• Understanding of Active Directory, DNS, Group Policy, TCP/IP networking, and server storage.


• Experience supporting server migrations, infrastructure transitions, or datacenter consolidation initiatives.


• Ability to troubleshoot issues across operating systems, virtualization, networking, and cloud infrastructure.


• Strong documentation, communication, and cross-functional collaboration skills.


• Ability to work onsite at the designated location and participate in scheduled migration cutovers or maintenance windows.

Preferred Qualifications

• Experience supporting Citrix Virtual Apps and Desktops, including supporting infrastructure and application delivery.


• Experience with AWS Application Migration Service or similar migration tools.


• PowerShell scripting and automation skills.


• Familiarity with backup, recovery, monitoring, and security tools across on-premises and AWS environments.


• Relevant AWS, Microsoft, VMware, or Citrix certifications.

Success Measures

• Assigned workloads are migrated and validated within approved migration windows.


• Post-migration issues are resolved promptly, with minimal disruption to business operations.


• Migration runbooks and operational documentation are complete and accurate.


• Migrated systems are successfully transitioned to ongoing support teams.