Senior IT Systems Engineer - Multi-Site Network & Infra

AgCertain Industries, Inc.; Ames (IA); On-site; USD 75,000 - 110,000; Full time

Job summary

AgCertain Industries, Inc. in Ames, IA seeks an IT Systems Engineer to plan, design and build complex IT infrastructures across multi-site environments.

You will ensure networks and systems are configured properly and efficiently to support manufacturing and office operations. The role focuses on ongoing modernization, security, and reliable remote access, with responsibilities including AD, DNS, DHCP, VPN, and Microsoft 365 integration, while maintaining documentation and collaborating with

Qualifications

• Bachelor’s degree in Information Technology, Computer Science, Information Systems or related field.
• Five (5) years experience in Network Engineering, Systems Engineering or Infrastructure Administration preferred.
• Experience with Entra ID, Intune, Cisco Duo and VPN technologies.
• Ubiquiti networking experience preferred.

Responsibilities

• Operate safely and appropriately in all AgCertain situations and environments.
• Design and maintain the IT infrastructure across multiple sites.
• Lead infrastructure modernization and lifecycle replacement work.
• Keep network diagrams, SOPs, and infrastructure documentation current.
• Support a mixed Cisco and Ubiquiti network environment.
• Handle complex troubleshooting across network, latency, wireless and connectivity issues.
• Manage VPN and remote access configurations accurately.
• Set up accounts and permissions during onboarding of employees.
• Maintain network segmentation and security controls for manufacturing and OT systems.
• Respond to outages, security incidents, and operational disruptions.
• Assist with infrastructure planning and budgeting, vendor evaluation, and technology roadmaps.
• Manage the Active Directory, Group Policy, DNS, and DHCP administration.
• Monitor cybersecurity issues and create solutions for these.
• Ensure all technology within both office and production settings is functioning properly.
• Ensure effective technology set-up and network requirements to meet daily business requirements including user account creation, access management, and offboarding.
• Understand our Windows Server environments and ensure they are accurately updated.
• Troubleshoot wired and wireless performance issues as they occur.
• Install infrastructure hardware as necessary.
• Support the hybrid Microsoft 365 and on-premise Exchange setup.
• Support warehouse scanners, mobile devices, printers, and other technology that needs hands‑on technical help.
• Follow all written procedures (SOPs) and work instructions that pertain to the respective area.
• Complete all required documentation accurately and in a timely manner.
• Participate in all company trainings.
• Perform additional duties as assigned.

Skills

Troubleshooting

Multi-tasking

Communication

Data analysis

Organizational skills

Management

Problem solving

Education

Bachelor’s degree in IT

Tools

Entra ID

Intune

Cisco Duo

VPN technologies

Ubiquiti networking

Job description

AgCertain Industries, Inc. in Ames, IA seeks an IT Systems Engineer to plan, design and build complex IT infrastructures across multi-site environments.

You will ensure networks and systems are configured properly and efficiently to support manufacturing and office operations. The role focuses on ongoing modernization, security, and reliable remote access, with responsibilities including AD, DNS, DHCP, VPN, and Microsoft 365 integration, while maintaining documentation and collaborating with