Senior Network Engineer

San Francisco 4 days agoContractor External
Negotiable
We use Cloudgenix ( Prisma SDWAN) Cisco Switches Cisco Meraki and Juniper MIst - WIFI PaloAlto firewalls Alkira- Network Edge Cisco ISE- Wireless and Wired authentication Responsibilities: • Install, configure and manage LANs, WANs, wireless networks, routers, switches, firewalls ,SDWAN (Software defined WAN)and other network hardware. • Responsible for a large WAN environment, involving multiple networks and data centers, ensuring maximum availability and capacity while ensuring adequate security • Work effectively on cross-departmental projects • Support network administration of a 24x7 infrastructure; participate in 24x7 on call rotation • Perform troubleshooting analysis of problems with network infrastructure, working with ISP or vendors • Manage network user access and permissions. • Manage network systems back up. • Document network problems and resolution for future reference • Maintain network diagrams and documentation • Generate and maintain documentation as it relates to network configuration, network mapping, processes, and service records • Monitor network performance, and implement performance tuning • Apply knowledge of firewalls and intrusion detection systems • Provide prompt communication and status reports on critical activities • Ensure proper security practices are followed in accordance with established IT policies and procedures, PCI and SOX Compliance. • Install, configure VOIP phones, thin clients/desktops for new users. • Manage cabling and telecom infrastructure to ensure smooth operations of our customer delight center. • Work closely with business and other IT teams to fulfill infrastructure requirements for new hires, office relocations. Requirements • Bachelor’s Degree in Computer Science, Information Technology or similar • 8+ years of network administration/engineering experience required • Experience troubleshooting and tuning WLAN networks • Expertise in WAN/LAN and transport technologies (Ethernet, MPLS, TDM circuits) • Proven ability to work with logical design models (Spanning tree, VTP, VLANs, physical cabling) • Knowledge of network protocols (CoS, PoE, NTP, DNS, DHCP, SMTP,VPC), network management protocols (CDP, TFTP, SNMP) and security protocols (SSH, HTTPS/SSL, AAA, IPSec) • Technical expertise in: Firewall, IPS, SSL, VPN, malware defense, web content filtering,Zscaler SASE, Cisco and Palo Alto firewall Administration,Palo Alto Prisma, Routing, Switching, WLAN • Networking: Switches, Routers, VPN, Servers, Firewalls, LAN, WAN, TCP/IP, DNS, UDP, Latency, VoIP, QoS, EIGRP, BGP, OSPF, NHRP, ATM, PPP, MPLS • Experience with e-commerce technologies, such as SSL and load-balancing • Working knowledge of IP communication and routing (OSPF, EIGRP, BGP) • Working knowledge to maintain Cisco Nexus environment • Experience working in a team-oriented, joint environment, preferably in a 24/7/365 Retail/ eCommerce organization • Experience with Solarwinds or equivalent enterprise monitoring and analysis toolset • Experience with disaster recovery – planning, implementation and maintenance • Methodical, meticulous person who is prepared to help instill the processes, standards and best practices in a diverse fast-changing environment • Experience with highly virtualized environment utilizing networked storage and cloud computing • Industry certifications desired: PAN and Cisco