Senior Hybrid Infrastructure Admin

Job Description

We are seeking a highly skilled Hybrid Infrastructure Administrator to support, maintain, and modernize enterprise infrastructure across on-premises and cloud environments. This individual will be responsible for the reliability, security, performance, and scalability of critical infrastructure while helping drive the organization’s continued transition toward cloud, automation, and Infrastructure as Code.

The ideal candidate will have strong hands-on experience supporting traditional enterprise infrastructure, particularly Windows/Linux servers, VMware, Active Directory, networking, storage, and firewalls, along with experience supporting AWS or other public cloud environments. This person should be comfortable owning technical initiatives, working with third-party vendors, and managing infrastructure projects from planning through implementation.

Key Responsibilities

• Administer, maintain, and troubleshoot enterprise Windows and Linux server environments.
• Manage and support VMware virtualization infrastructure, including system health, performance, upgrades, and availability.
• Administer Active Directory, domain controllers, Group Policy, DNS, and DHCP.
• Manage enterprise networking infrastructure, including firewall configurations, connectivity, performance, and security.
• Support SonicWall and Palo Alto firewalls, including firewall rules and security configurations.
• Monitor infrastructure health and proactively address performance, capacity, reliability, and availability issues.
• Perform server OS upgrades, patching, maintenance, and vendor-supported updates.
• Support enterprise storage and backup technologies, including environments utilizing Isilon, Vblock, VxRail, Data Domain, and Avamar.
• Administer and support hybrid-cloud infrastructure across AWS, Azure, and/or GCP, with a focus on securely integrating cloud and on-premises environments.
• Design and maintain cloud infrastructure, networking, identity, security controls, monitoring, backup, and disaster recovery solutions.
• Develop automation and Infrastructure as Code (IaC) solutions using technologies such as Terraform, AWS CloudFormation, ARM/Bicep, Ansible, or Pulumi.
• Build and maintain administrative automation using PowerShell, Bash, Python, or similar scripting languages.
• Support CI/CD pipelines and DevOps practices that improve infrastructure deployment, provisioning, and operational efficiency.
• Coordinate with third-party vendors and service providers to resolve issues and deliver infrastructure initiatives.
• Lead or contribute to infrastructure projects, including planning, implementation, documentation, and delivery.

Partner with technical and business stakeholders to communicate infrastructure needs, risks, solutions, and project progress.

Skills and Requirements

• Strong experience supporting enterprise on-premises infrastructure, including servers, networking, virtualization, storage, and security.
• Hands-on administration experience with VMware technologies.
• Strong knowledge of Windows Server, Linux, Active Directory, DNS, DHCP, and Group Policy.
• Experience with enterprise networking and firewall administration.
• Hands-on experience supporting AWS and/or another major public cloud platform.
• Understanding of cloud networking, identity and access management, security, monitoring, backup, and disaster recovery.
• Experience with Infrastructure as Code and automation, ideally Terraform, CloudFormation, Ansible, ARM/Bicep, Pulumi, or similar technologies.
• Scripting experience with PowerShell, Bash, Python, or similar tools.
• Strong troubleshooting and root-cause analysis skills.
• Experience working with third-party vendors and service providers.
• Ability to independently own and deliver infrastructure projects.
• Strong written and verbal communication skills with the ability to communicate effectively with technical and non-technical stakeholders.
• Experience with Palo Al