Senior Systems Administrator
About The Position
We are seeking a highly skilled and forward-thinking Senior Systems Administrator to serve as a key technical leader within the IT department. This position is responsible for the design, implementation, administration, and continuous improvement of the company’s network, cloud, server, virtualization, and Microsoft technology environments. The Senior Systems Administrator will have a strong focus on Microsoft Azure, Microsoft 365, enterprise networking, virtualization, Windows Server, and hybrid infrastructure platforms. This role will work closely with the Desktop Support Analyst and Junior Systems Administrator, serving as a senior escalation resource, technical mentor, and subject matter expert (SME) for complex infrastructure and systems-related issues. The Senior Systems Administrator will lead infrastructure modernization initiatives, develop and maintain technical standards, drive complex infrastructure projects, and help ensure the reliability, security, scalability, and performance of the company’s technology environment. This position will also play a key role in infrastructure integration and modernization associated with company acquisitions, including network architecture, identity integration, server and application migrations, security alignment, and standardization of acquired environments.
Requirements
- Strong focus on Microsoft Azure, Microsoft 365, enterprise networking, virtualization, Windows Server, and hybrid infrastructure platforms.
- Experience with Aruba, Meraki, and Fortinet technologies.
- Expertise in configuring and supporting Fortinet firewalls (HA, SD-WAN, site-to-site VPNs, remote access).
- Experience managing Aruba switching and wireless environments.
- Proficiency in designing and managing Azure Virtual Machines, networking, and supporting services.
- Experience architecting and maintaining hybrid identity solutions (Active Directory with Microsoft Entra ID).
- Experience leading improvements to Microsoft 365 environments (Exchange Online, SharePoint, Teams, Intune, security configurations).
- Experience designing, managing, and supporting virtualization platforms (VMware vSphere, Microsoft Hyper-V).
- Experience maintaining virtual machine lifecycle (provisioning, performance optimization, capacity planning).
- Experience supporting and maintaining Windows Server environments.
- Experience planning and executing server migrations to Azure or modern platforms.
- Experience managing storage, backup, and disaster recovery strategies.
- Experience in infrastructure planning and integration for company acquisitions.
- Experience identifying opportunities to modernize legacy infrastructure.
- Experience strengthening security posture across network, cloud, and server platforms.
- Experience assisting with investigation and remediation of security or infrastructure incidents.
- Experience implementing monitoring, alerting, and performance visibility.
- Experience acting as an escalation point for complex technical issues.
- Experience mentoring and providing technical guidance.
- Experience establishing and maintaining infrastructure documentation, standards, and operating procedures.
- Experience collaborating with vendors, consultants, and internal stakeholders.
- Experience providing technical planning input, timelines, and risk assessments.
Responsibilities
- Design, implement, and maintain enterprise network architecture utilizing Aruba, Meraki, and Fortinet technologies.
- Own and maintain network standards including VLAN design, IP addressing, routing, redundancy, and segmentation.
- Configure and support Fortinet firewalls, including HA, SD-WAN, site-to-site VPNs, and remote access solutions.
- Manage Aruba switching and wireless environments, including centralized management via Aruba Central.
- Lead network expansion and modernization projects across warehouse and office environments.
- Validate vendor designs and implementations to ensure alignment with company standards and best practices.
- Serve as the Azure subject matter expert, leading cloud architecture decisions and hands-on implementation.
- Design and manage Azure Virtual Machines, networking, and supporting services.
- Architect and maintain hybrid identity solutions integrating on-premises Active Directory with Microsoft Entra ID.
- Lead improvements to the Microsoft 365 environment, including Exchange Online, SharePoint, Teams, Intune, and security configurations.
- Design, manage, and support virtualization platforms including VMware vSphere and Microsoft Hyper-V.
- Maintain virtual machine lifecycle including provisioning, performance optimization, and capacity planning.
- Support and maintain Windows Server environments and supporting infrastructure services.
- Plan and execute server migrations from on-premises environments to Azure or modern platforms.
- Manage storage, backup, and disaster recovery strategies for virtual and physical infrastructure.
- Participate in infrastructure planning and integration for company acquisitions, including network connectivity and architecture, Active Directory and identity integration, server and application migrations, and security alignment and standardization.
- Identify opportunities to modernize legacy infrastructure and move toward cloud or hybrid solutions.
- Partner with IT leadership to strengthen the organization’s security posture across network, cloud, and server platforms.
- Assist with investigation and remediation of security or infrastructure incidents.
- Implement monitoring, alerting, and performance visibility across core infrastructure platforms.
- Act as the highest escalation point for complex technical issues beyond desktop and junior systems administration scope.
- Mentor and provide technical guidance to the Junior Systems Administrator and Desktop Support Analyst.
- Establish and maintain infrastructure documentation, standards, and operating procedures.
- Collaborate with vendors, consultants, and internal stakeholders on infrastructure initiatives.
- Provide technical planning input, timelines, and risk assessments for infrastructure projects.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
