Senior Network Administrator & IT Infrastructure Lead

ADP; Colwich (KS); On-site; USD 80,000 - 120,000; Full time

Job summary

ADP in Colwich, Kansas is seeking a Network Administrator III to design, manage and optimize our on-premise network and server infrastructure, ensuring high availability and strong security. The role collaborates with Systems, Applications and Security teams to align IT provisioning with company goals.

You will build and maintain Palo Alto firewall, VPN, Cisco routing/switching, and Windows Server environments, perform security audits, support disaster recovery, and mentor junior staff while

Qualifications

• High school diploma required
• Bachelor’s degree in Computer Science or related field preferred
• Microsoft/Cisco/Palo Certifications preferred
• 6+ years’ experience with Microsoft Server administration required
• 4+ years’ experience with network/server administration required
• Active Directory, Windows client/server platforms experience required
• Experience with Cisco networking technologies, including security, routing, switching & voice systems required

Responsibilities

• Build and maintain network infrastructure including Palo Alto firewall, VPN, and Cisco routing/switching/phone architecture and Windows Server architecture
• Serve as network engineering interface for Systems administrators and other teams to implement desktop and server systems
• Manage communications and connection solutions including workstation connectivity and intranet
• Oversee direction to optimize infrastructure & applications ecosystem
• Build and support LAN/WAN environment and perform security audits
• Collaborate with business on IT support for special projects (acquisitions, deployments)

Skills

Active Directory

Windows Server administration

Cisco networking

OSI model

English proficiency

Education

Bachelor’s degree in Computer Science or related field

High school diploma

Microsoft/Cisco/Palo Certifications

Tools

Palo Alto Firewall

VPN / Always-On VPN

Cisco routing & switching

Windows Server architecture

Active Directory

Job description

ADP in Colwich, Kansas is seeking a Network Administrator III to design, manage and optimize our on-premise network and server infrastructure, ensuring high availability and strong security. The role collaborates with Systems, Applications and Security teams to align IT provisioning with company goals.

You will build and maintain Palo Alto firewall, VPN, Cisco routing/switching, and Windows Server environments, perform security audits, support disaster recovery, and mentor junior staff while