Job description

Company Profile Jake Marshall Service, Inc., founded in 1984, is a mechanical contracting business that specializes in HVAC, piping, refrigeration, boiler and chiller systems, and preventative maintenance for commercial and industrial customers in Tennessee, Georgia, and Alabama. With headquarters in Chattanooga and offices in surrounding areas, the company is known for reliable service and innovative solutions. (jmservice.com) Position Summary We are seeking a Systems & Network Administrator to maintain and enhance our IT infrastructure. This role includes providing technical support for daily issues—ranging from routine troubleshooting to more complex system management—and participating in long-term infrastructure projects. The administrator will work with on-premises data center equipment, VMware virtualization platforms, and Azure cloud services, supporting both office staff and field technicians while ensuring device security and connectivity. Main Responsibilities Infrastructure & Virtualization · Oversee VMware infrastructure, including hosts, clusters, vCenter, backups, and restores. · Monitor system performance and resolve capacity or reliability concerns proactively. Networking · Configure and maintain Ubiquity (Unifi) routers, switches, firewalls, and wireless access points. · Establish VLANs, VPNs, and site-to-site networking for the Chattanooga headquarters and satellite offices. · Monitor network health to ensure consistent uptime across locations. Microsoft 365 & Azure · Administer Office 365 services (Exchange Online, Teams, OneDrive, SharePoint). · Manage Azure Active Directory, identity synchronization, and license assignments. · Support hybrid integrations between on-premises Active Directory and Azure services. Apple Ecosystem & Mobile Device Management · Manage Apple devices (MacBooks, iPads, iPhones) using Apple Business Manager and JAMF. · Implement and enforce security, compliance policies, application deployment, and configuration profiles. · Provide support for device setup, troubleshooting, and ongoing care. User Support & Helpdesk · Offer technical assistance to staff and field technicians at all levels. · Handle account creation, password resets, access management, and onboarding/offboarding. · Document procedures, system configurations, and troubleshooting guides. Security & Reliability · Monitor systems and logs for unusual activity, patch vulnerabilities, and maintain compliance. · Participate in backup, disaster recovery, and business continuity planning. · Support incident response and prevention strategies. Projects & Collaboration · Lead or assist with IT initiatives such as deploying new sites, refreshing infrastructure, and migrating to the cloud. · Collaborate with company leadership to align IT with business needs. · Provide technical recommendations to enhance efficiency and scalability. Required Qualifications · At least 3 years of experience in systems and network administration. · Proficiency in VMware virtualization. · Hands-on experience with Ubiquity/Unifi networking hardware. · Office 365 and Azure Active Directory administration skills. · Experience managing Apple devices with Apple Business Manager and JAMF. · Solid troubleshooting abilities, from Tier 1 through Tier 3 support. · Capability to support multiple locations and remote users. Preferred Skills · Relevant certifications (VMware VCP, Microsoft MS-100/200, Azure Administrator, JAMF). · Scripting experience with PowerShell or Bash to automate tasks. · Background supporting distributed field teams in industrial or construction settings. Why Work at Jake Marshall Service? · Join a trusted leader with a strong regional reputation in mechanical contracting. · Work in a diverse IT environment covering on-premises data centers, cloud integrations, multi-site networking, and mobile workforce support. · Directly impact the reliability and security of essential business systems. · Enjoy a culture built on teamwork, professionalism, and continuous improvement. Job Type: Full-time Benefits: • 401(k) • 401(k) matching • Dental insurance • Health insurance • Life insurance • Paid time off • Vision insurance Education: • Associate (Preferred) Experience: • IT support: 1 year (Required) Willingness to travel: • 25% (Required) Work Location: In person

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