Senior Windows System Engineer

Dexian; Dublin (CA); On-site; USD 110,000 - 170,000; Full time

Job summary

Dexian is seeking a Senior Windows Systems Engineer to serve as a technical SME within a large enterprise infrastructure. The role focuses on designing, supporting, and optimizing Windows-based systems while collaborating across teams to resolve complex challenges.

Strong expertise across Windows Server 2019-2022, Hyper-V, VMware ESX, AD DS, DNS/DHCP, and PKI is required. The ideal candidate will lead IT infrastructure initiatives, coordinate cross-team efforts, and implement automation via

Qualifications

• SME experienced in large-scale Windows Server environments.
• Ability to coordinate technical efforts across multiple teams to drive issue resolution.
• Strong expertise across Windows Server 2019, 2022 and newer versions.
• Hands-on experience with Hyper-V and VMware ESX virtualization.
• Deep knowledge of Active Directory Domain Services, DNS, and DHCP.
• Experience with SSL/TLS, network infrastructure, DMZs and security zones.
• Experience supporting enterprise server hardware (rack, blade, chassis).
• Experience managing on-premises and cloud-based infrastructure.
• Advanced PowerShell scripting and LDAP/domain controller integrations.

Responsibilities

• Design, support and optimize Windows-based systems in a large enterprise environment.
• Collaborate with multiple teams to resolve infrastructure challenges.
• Lead and mentor teams to implement effective solutions and improvements.
• Maintain security zones, certificates and PKI infrastructure where applicable.
• Configure and manage virtualization platforms and AD DS services.
• Automate tasks with PowerShell and streamline monitoring and reporting.

Skills

SME

Cross-team coordination

PowerShell

GPO

LDAP

Domain controllers

Communication

Windows Server 2019-2022

Cloud infra

Tools

Hyper-V

VMware ESX

Active Directory

DNS

DHCP

PKI

Job description

We are seeking an experienced Senior Windows Systems Engineer to serve as a technical subject matter expert within a large enterprise infrastructure environment. This individual will play a key role in designing, supporting, and optimizing Windows-based systems while collaborating across multiple technical teams to resolve complex infrastructure challenges.

Required Qualifications

• Proven experience serving as a Subject Matter Expert (SME) in large-scale Windows Server environments.
• Demonstrated ability to coordinate technical efforts and drive issue resolution across multiple teams.
• Strong expertise with:
• Windows Server 2019, 2022, and newer versions
• Hyper-V and VMware ESX virtualization
• Active Directory Domain Services
• DNS and DHCP
• SSL/TLS technologies
• Network infrastructure, DMZs, and security zones
• Hands-on experience supporting and maintaining enterprise server hardware, including rack-mounted servers, blade servers, and blade chassis infrastructure.
• Experience managing both on-premises and cloud-based infrastructure environments.
• Advanced PowerShell scripting expertise.
• Strong knowledge of Group Policy (GPO) administration, LDAP, and domain controller integrations.
• Excellent written and verbal communication skills with the ability to effectively communicate technical concepts, challenges, and solutions to technical and non-technical stakeholders.

Preferred Qualifications

• Experience working with enterprise server and infrastructure hardware solutions.
• Experience with hyperconverged infrastructure (HCI) and cloud platforms, including Microsoft Azure.
• Microsoft, virtualization, or networking certifications.
• Experience deploying and supporting Microsoft SQL Server environments.
• Working knowledge of LDAP, certificate services, PKI, and certificate authority infrastructure.
• Experience with enterprise systems management and monitoring tools such as configuration management, monitoring, observability, and infrastructure management platforms.
• Familiarity with ITIL best practices and service management frameworks.
• Strong interpersonal and collaboration skills.
• Excellent presentation and stakeholder communication abilities.

Key Skills

Windows Server | Active Directory | PowerShell | Hyper-V | VMware ESX | DNS | DHCP | GPO | LDAP | Azure | Windows Clustering | Infrastructure Engineering | Enterprise Systems Administration | SQL Server | PKI | Network Security