System Administrator Tier 3 Network
Role details
Job location
Tech stack
Job description
Lewis Bakeries is seeking a Network / Systems Administrator with approximately 5-7 years of hands-on experience supporting enterprise network and systems environments. The primary focus of this role is the administration, maintenance, and improvement of core infrastructure - networking, Microsoft 365, Windows Server, endpoint devices, and identity services - across multiple manufacturing and distribution sites.
The ideal candidate has a balanced background in network administration and systems administration, brings a proactive and security-minded approach, and serves as an escalation point in a fast-paced, multi-site environment.
This is a hands-on role that combines infrastructure responsibility with direct user support. The administrator owns and maintains core network and systems infrastructure and also works daily end-user support tickets as part of the IT team., Network Administration
- Design, implement, and maintain LAN, WAN, WLAN, VPN, and remote connectivity solutions across bakeries, distribution centers, and corporate locations.
- Configure, manage, and troubleshoot routers, switches, firewalls, wireless controllers, and related network hardware.
- Monitor network performance, identify bottlenecks, and optimize reliability, availability, and efficiency.
- Troubleshoot complex network issues involving routing, switching, wireless, firewalling, and security incidents.
- Assist with network security initiatives including segmentation, access control, vulnerability remediation, and incident response.
- Maintain accurate network documentation, diagrams, IP addressing, and configuration standards.
- Participate in the planning and execution of network upgrades, expansions, and modernization projects.
System and Infrastructure Administration
Owns (Primary Responsibility)
- Administer and support Microsoft 365 services including Entra ID (Azure AD), Exchange Online, SharePoint, OneDrive, Teams, and security features.
- Perform user account creation, management, and lifecycle administration across Active Directory and Microsoft 365.
- Design, implement, and maintain Group Policy Objects (GPOs) for security, configuration, and compliance.
- Deploy, manage, and maintain Windows servers (on-prem and/or virtualized), including patching, hardening, updates, and lifecycle management.
Assists with (Shared/Supporting)
- Support endpoint device deployment and management for desktops, laptops, tablets, mobile phones, and servers, including imaging, configuration, and replacement.
- Assist with endpoint security platforms such as SentinelOne, including agent deployment, policy management, alert review, and remediation in coordination with security and IT leadership.
- Assist with device management platforms (e.g., Intune, MDM/MAM, or similar) and endpoint security tooling.
- Support backup, recovery, and disaster recovery processes for systems and infrastructure.
- Troubleshoot complex OS, authentication, application, security, and endpoint issues escalated from frontline support.
End-User Support and Operational Responsibilities
- Work daily end-user support tickets and provide hands-on, day-to-day support to users.
- Troubleshoot and resolve desktop, application, authentication, device, and connectivity issues directly with end users.
- Serve as a escalation resource for IT staff across networking, systems, and security domains.
- Collaborate with vendors, service providers, and internal teams to deliver stable, scalable, and secure solutions.
- Contribute to infrastructure standards, documentation, and internal knowledge resources.
- Participate in on-call rotation and provide after-hours support for critical systems.
- Assist with audits, compliance initiatives, and security reviews as needed., * Standard business hours with flexibility based on project needs.
- Occasional travel to bakeries and distribution sites for installations, upgrades, or troubleshooting.
- On-call rotation required for after-hours support of critical systems.
- Work involves both office-based administration and hands-on technical work in production or warehouse environments.
- Must be able to lift and transport IT and networking equipment as needed.
Requirements
- Bachelor's degree in Information Technology, Computer Science, or a related field - or equivalent professional experience.
- 5-7 years of professional experience in network administration, systems administration, or a hybrid infrastructure role.
- Strong working knowledge of TCP/IP networking, routing, and switching concepts.
- Hands-on 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 security tools such as SentinelOne or comparable EDR platforms.
- Proficiency with user account management, device deployment, and end-user support across multiple device types.
- Solid understanding of security best practices across networks, systems, endpoints, and identities.
- Ability to independently analyze, diagnose, and resolve complex technical issues while supporting day-to-day user needs.
- Strong documentation, communication, and collaboration skills.
Preferred
- Relevant certifications such as CCNA/CCNP, Network+, Security+, Microsoft (Azure/M365), or equivalent.
- Experience supporting manufacturing, distribution, or industrial environments.
- Familiarity with cloud platforms (Azure, AWS) and hybrid identity models.
- Experience with MDM/Intune, endpoint security platforms, or zero-trust concepts.
- Knowledge of VoIP, QoS, and unified communications.
- Experience with automation or scripting (PowerShell, Python, Ansible).
Benefits & conditions
Pulled from the full job description
- Health insurance
- 401(k) matching
- Paid time off
- Dental insurance
- Disability insurance
- Pension plan
- Paid holidays, At Lewis Bakeries, we believe in rewarding our employees with a comprehensive compensation and benefits package that supports their health, financial well-being, and professional growth.
Exceptional Total Rewards Package
In addition to a competitive salary, employees enjoy a benefits package that provides significant financial value, including:
- Medical coverage with weekly premiums as low as $10 and a low-deductible plan design
- Comprehensive dental coverage, including orthodontic benefits for dependent children
- Company-funded pension plan and a 401(k) with company matching contributions
- Company-paid short-term and long-term disability insurance
- Paid Personal Time Off (Vacation) and holidays
- Professional development opportunities and long-term career growth
Additional reasons employees choose Lewis Bakeries:
- Family-owned company with over 100 years of baking excellence
- Stable and growing organization with a long history of success
- Collaborative culture that values employee engagement, safety, and continuous improvement
- Opportunity to make a meaningful impact as a key member of the bakery leadership team