System Administrator Tier 3 Network

Tier 3 Network / Systems Administrator Lewis Bakeries is seeking a skilled and motivated Tier 3 Network / Systems Administrator to support and enhance our enterprise network and systems infrastructure. This senior technical role is responsible for designing, maintaining, and improving core IT environments across multiple bakery, distribution, and corporate locations. The ideal candidate brings a balanced background in network and systems administration, a proactive and security-focused mindset, and the ability to serve as a Tier 3 escalation resource in a fast-paced manufacturing environment. While this role focuses on infrastructure and architecture, collaboration and hands-on support are essential to maintaining a reliable and responsive IT organization. ResponsibilitiesNetwork Administration Design, implement, and maintain LAN, WAN, WLAN, VPN, and remote connectivity solutions Configure, manage, and troubleshoot routers, switches, firewalls, wireless systems, and related hardware Monitor network performance and optimize reliability and availability Troubleshoot complex routing, switching, wireless, and security incidents Support network security initiatives including segmentation and access controls Maintain network documentation, diagrams, and configuration standards Participate in network upgrades and modernization projects Systems & Infrastructure Administration Administer Microsoft 365 services including Entra ID, Exchange Online, SharePoint, OneDrive, and Teams Manage user accounts across Active Directory and Microsoft 365 Design and maintain Group Policy Objects (GPOs) Deploy and maintain Windows servers (on-prem and virtualized) Support endpoint deployment and lifecycle management Administer endpoint security platforms such as SentinelOne Assist with device management platforms including Intune and MDM solutions Support backup, recovery, and disaster recovery processes Resolve complex operating system, authentication, and application issues General & Operational Responsibilities Serve as a Tier 3 escalation resource for networking, systems, and security issues Provide hands-on end-user support during peak periods or critical incidents Collaborate with vendors and internal teams Maintain infrastructure documentation and best practices Participate in on-call rotation and after-hours support Assist with audits and security reviews QualificationsRequired Bachelor's degree in IT, Computer Science, or related field, or equivalent experience Four (4) to five (5) years of network and/or systems administration experience Strong knowledge of TCP/IP, routing, and switching Experience with enterprise firewalls (Cisco, Fortinet, Palo Alto, or similar) Experience administering Windows Server, Active Directory, Group Policy, and Microsoft 365 Experience with endpoint protection and EDR platforms Strong troubleshooting and problem-solving skills Excellent documentation and communication abilities Preferred Relevant certifications (CCNA/CCNP, Network+, Security+, Microsoft, Azure/M365) Manufacturing or distribution environment experience Experience with cloud platforms and hybrid identity models Familiarity with Intune, MDM, and zero-trust concepts Knowledge of VoIP and unified communications Automation or scripting experience (PowerShell, Python, Ansible) About Lewis Bakeries Founded in 1925, Lewis Bakeries is a family-owned company producing high-quality breads, buns, and rolls under trusted brands including Bunny Bread®, Lewis Bake Shop®, and Healthy Life®. With operations across Indiana and Tennessee, we are committed to innovation, reliability, and investing in our people. Why Join Lewis Bakeries Family-owned and operated since 1925 Competitive compensation Comprehensive benefits including medical, dental, 401(k), and company-paid life and disability insurance Paid vacation and holidays Growth and development opportunities Equal Opportunity Employer Lewis Bakeries is an Equal Opportunity Employer and Drug-Free Workplace. All qualified applicants will receive consideration without regard to race, color, religion, sex, national origin, disability, veteran status, or any other protected status. Employment is contingent upon successful completion of a background check, drug screening, and reference check. #lbmanagement

Created: 2026-03-10