Senior Network Administrator to help build a network based on Zero Trust security model, CIS hardening guidelines and modern technology such as NGFW and SD-WAN. 

S.i. System' retail client is looking for a Senior Network Administrator to help build a network based on Zero Trust security model, CIS hardening guidelines and modern technology such as NGFW and SD-WAN. 


MUST HAVES:

• 6+ years working as an Network Administrator for a medium to large enterprise with complex technology environments.
• Experience with Cisco Routing and Switching devices, Cisco/Meraki Wireless Access Points (WAP) and Controllers, Palo Alto Firewall Appliances, Load Balancers, VOIP Telephony, Video Conferencing, Hybrid Connectivity, Microsoft Azure, SD-WAN, Network performance and monitoring tools

Responsibilities

Network Administration
• Documentation and administration of all Network Infrastructure. 
• Serves as a lead technical trouble-shooter and coordinator on complex network issues affecting mission critical applications.
• Ensures that documentation of Network topology and configurations are maintained. 
• Author detailed system design documents. 
• Propose and submit solution recommendations, including costs, benefits, risks, and ROI.

Troubleshooting & Maintenance
• Oversees and performs network maintenance duties. 
• Ensures network is fully optimized for application performance and high availability.
• Proactively identify ongoing cost optimization, performance enhancement, and growth strategies.

Network Security
• Works closely with Cyber Security Architect and Technical Solutions Architect to research, design and implement security solutions, including working with managed services.
• Defines Network segmentation, security zones and access control policies.