Job Description A Brief Overview A major client of Insight Global is seeking a Senior IT Infrastructure Engineer focused on Active Directory/ Windows Server. This role requires deep expertise in Active Directory, Windows Server platform operations, and hybrid cloud ecosystems. You'll serve as a senior escalation point, mentor peers, and help define the standards and architectural patterns that the rest of the infrastructure team builds on. Responsibilities Identity, Active Directory, and hybrid directory Design, implement, and maintain Active Directory (sites, replication, OU/GPO models, trust relationships) and closely coupled services (DNS, DHCP) with clear standards and change control. Implement and evolve hybrid identity patterns (for example Microsoft Entra ID / Connect, hybrid join, federation concepts, conditional access alignment) in partnership with security and cloud teams. Enforce identity, privileged access, and Group Policy practices that meet audit and risk expectations; support certificate and authentication models where they touch AD. Lead recovery and forest/domain health scenarios with documented playbooks and measurable recovery objectives. Infrastructure and cloud operations Support hybrid architectures integrating on-premises infrastructure with cloud services (Azure/AWS). Administer and maintain Windows Server, Active Directory, Group Policy, and

DNS/DHCP

services. Oversee backup and recovery systems, ensuring adherence to RTO/RPO requirements. Perform routine and advanced maintenance, patching, and lifecycle management for all core infrastructure systems. Windows Server platform operations Operate and support the Windows Server estate on physical and virtual platforms, including standardized builds, failover clustering, performance tuning, and tight alignment with VMware-hosted workloads.

Deliver reliable Windows platform foundations:

patch and compliance cycles, security baseline coordination, vulnerability remediation, and clear handoffs to application and platform teams. Maintain and evolve core Wintel-adjacent services in scope (for example DNS, DHCP, Group Policy, certificate services, and file/print where centrally managed). Partner with identity, collaboration, and endpoint teams on Active Directory structure, GPO standards, authentication patterns, and hybrid identity integration—bringing automation and IaC discipline to Windows platform management. Service optimization and cost management Analyze infrastructure performance and usage patterns to optimize resource allocation. Recommend cost-effective solutions for compute, storage, and cloud services. Identify opportunities for consolidation, automation, and modernization to increase efficiency and reduce operational cost. Partner with procurement and finance to forecast infrastructure capacity and budget requirements. Security, compliance, and risk management Ensure infrastructure adheres to security policies, compliance frameworks, and industry best practices. Implement and maintain hardening, patching, and vulnerability remediation processes. Support audits, system reviews, and DR/BCP planning. Enforce identity, access, and privilege management standards across systems. Technical leadership and support Serve as a senior escalation point for complex infrastructure issues and major incidents. Mentor junior engineers and provide technical guidance across teams. Lead or participate in infrastructure projects, migrations, and modernization initiatives. Define best practices, standards, and architectural patterns for platforms under ownership. Performance monitoring and capacity planning Monitor health, performance, and utilization of compute, storage, virtualization, and cloud environments. Develop and maintain dashboards and alerting systems to ensure proactive issue detection. Conduct long-term capacity planning aligned with business and growth needs. Documentation and reporting Create and maintain detailed technical documentation, diagrams, and runbooks. Produce reports on infrastructure performance, incidents, trends, and improvements. Document standard operating procedures and architectural designs. Collaboration and stakeholder engagement Work closely with application owners, security teams, and business stakeholders to deliver reliable services. Participate in change control, release planning, and cross-team coordination. Communicate complex technical topics in clear, business-friendly language. We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.

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https://insightglobal.com/workforce-privacy-policy/. Skills and Requirements 7-10+ years of experience in enterprise IT infrastructure engineering roles. Hands-on experience operating Windows Server at scale Patching and lifecycle management, failover clustering, and tight integration with VMware virtualization and enterprise storage platforms. Proven experience supporting large, enterprise-scale Active Directory and hybrid cloud environments. Experience with AD DS, Group Policy, OU design, replication, DNS/DHCP, RBAC models, PKI integration points, Tiered Administration (PAW model), and LAPS.

Hybrid Cloud infrastructure:

on-premises to cloud integrations, identity federation patterns, hybrid join, conditional access alignment with security Experience supporting AWS cloud infrastructure Experience supporting Citrix environments, VMware environments, and enterprise backup tools (Veritas, Commvault, Avamar, Rubrik, etc.). Proven history of driving infrastructure improvement projects and implementing scalable solutions.

Cloud platforms:

Azure/AWS compute, storage, networking, identity integration, and monitoring.

Networking fundamentals:

VLANs, routing, firewalls, load balancing, virtual networking.

Scripting and automation:

PowerShell, CLI operations, infrastructure-as-code fundamentals.

Performance and capacity management:

trend analysis, resource forecasting, system optimization.

Security and compliance:

infrastructure hardening, vulnerability management, audit support. Familiarity with AI-assisted operations (for example, AIOps-style alerting or approved enterprise LLM tools) and safe adoption practices in regulated environments is a plus.