SENIOR SYSTEMS & INFRASTRUCTURE ENGINEER

U.S. Space & Rocket Center•Huntsville, AL

6h•Onsite

About The Position

This role focuses on modernizing and managing enterprise virtualization, Active Directory, and core infrastructure services. The engineer will be responsible for designing, implementing, and maintaining highly available virtual infrastructure, leading Active Directory modernization efforts, and managing essential network and identity services in hybrid environments. Additionally, the position involves administering Microsoft 365, Exchange Online, and Azure, as well as supporting various third-party security platforms and responding to security incidents. The role requires strong technical skills in virtualization, Windows Server, Active Directory, DNS, DHCP, Microsoft 365, Azure, and security operations, along with excellent communication and documentation abilities.

Requirements

M.S. Degree in Information Systems, Computer Science, Computer Engineering, or a closely related field.
15+ years of enterprise systems administration, infrastructure engineering, or systems architecture experience
Experience leading infrastructure modernization, migration, and cloud transformation initiatives
Strong written communication, documentation, and executive presentation skills
Experience supporting enterprise production environments with high availability and disaster recovery requirements
VMware Certified Professional (VCP)
Microsoft Certified: Azure Security Engineer Associate (AZ-500)
Certified Information Systems Security Professional (CISSP)
Must be a U.S. citizen due to Cyber requirements.

Responsibilities

Administer, maintain, and troubleshoot enterprise virtualization environments including Hyper-V, VMware, and Proxmox.
Design and support highly available virtual infrastructure platforms, including host configuration, storage integration, backup, recovery, and performance optimization.
Plan and execute infrastructure migrations and platform transitions between virtualization technologies with minimal operational impact.
Lead modernization of legacy Active Directory environments, including migration from Windows Server 2008/2012 R2 domain controllers to Windows Server 2022/2025.
Design, deploy, and promote new domain controllers in virtualized environments.
Develop and execute domain controller decommissioning plans with minimal risk and no interruption to users.
Troubleshoot complex AD, DNS, Kerberos, replication, and Group Policy issues.
Establish and maintain standards for secure, production-ready server builds, including hardening, patch management, monitoring, backup integration, configuration baselines, and resiliency best practices.
Develop and enforce infrastructure standards for redundancy, fault tolerance, disaster recovery, documentation, and operational readiness across critical systems.
Design, administer, and maintain enterprise network and identity services in hybrid environments.
Manage core infrastructure services including DNS, DHCP, directory services, and authentication platforms.
Develop and execute migration and continuity strategies for infrastructure changes, system retirements, and service cutovers.
Troubleshoot complex name resolution, authentication, connectivity, and identity-related issues across on-premises and cloud systems.
Implement and support secure identity, single sign-on, and multi-factor authentication solutions.
Establish standards, documentation, and best practices for identity and network service architecture.
Administer and support Microsoft 365, Exchange Online, and Azure environments in hybrid enterprise organizations.
Manage cloud-based messaging, collaboration, identity, licensing, compliance, security, and user administration.
Configure and support Exchange Online mail flow, mailbox administration, shared mailboxes, retention, security, transport rules, and hybrid mail environments.
Design and implement identity, multi-factor authentication, conditional access, and cloud governance strategies.
Support Azure subscriptions, cloud infrastructure, monitoring, reporting, backup, recovery, and operational governance.
Evaluate and implement cloud technologies to improve security, resiliency, scalability, and operational efficiency.
Administer, support, and troubleshoot third-party security platforms used for endpoint protection, monitoring, vulnerability management, email security, and incident response.
Support enterprise security toolsets including Huntress, Action1, Proofpoint, endpoint protection, vulnerability management, remote monitoring, and related operational platforms.
Investigate and respond to security alerts, suspicious activity, phishing attempts, endpoint events, and access-related incidents.
Develop and maintain security procedures, incident response documentation, monitoring standards, and operational playbooks.
Coordinate with vendors, leadership, and technical teams to improve organizational security posture and operational readiness.