Job Description
Job Title: Staff System Administrator
Location: Englewood, CO
Type: CTH or Full Time
Salary: $109k
Zscaler Proxy and Network Administration:
● Primary responsibilities will be the support, troubleshooting, and administering of Zscaler network proxies.
● Will perform day to day tasks for moves, adds, changes, and updating proxy rule sets
● Be primary resource for troubleshooting including engaging with end users and providing leadership on outage bridges
● Monitor Zscaler platform services and processes
● Document setup and maintain as built drawings as changes are made
● Supporting Zscaler products like Client Connector (aka ZAPP) and Virtual ZENs
● Maintain GRE tunnels to four Zscaler endpoints
● Work with network security team to administer Zscaler PAC files
● Practical experience related to LAN, WAN, WLAN, VLAN, DMVPN, VPN, and high-availability/multipath/redundant routers, switches and firewalls in large data center environment
● Support network protocols such as: BGP, OSPF, EIGRP, HSRP, VLAN, TCP/IP, MPLS, STP, IPv4, sub-netting, routing
● Familiarity with these technologies is a plus: Cisco ASA, Palo Alto firewalls, Cisco ISE, networking for F5 LTM/GTM, and networking for IPS/IDS
● General technical knowledge of Cisco networking technologies and platforms to include Nexus, ASR, ISR, Catalyst, ACI/APIC
Project Implementation:
● Provide advanced technical leadership for complex project work
● Supply advanced technical direction and leadership to the junior members of the data networking team
● Work with various teams to gather requirements, create specifications, and design solution for projects
● Provide hands-on implementation and ongoing care and maintenance
● Develop implementations in lab environment to prove out design specifications according to a test and validation plan
● Maintaining daily operational responsibility for reliability of the enterprise network and proxies
● Monitors ongoing availability of network services and processes via tools such as Solarwinds Orion and Cisco Prime Infrastructure applications
Operations:
● Follow necessary processes to ensure enterprise network systems and services meet an operational uptime of 99.95%
● Conducts advanced enterprise-level performance tuning as well as network performance audits on a regular basis
● Maintaining daily operational responsibility for reliability of the corporate network
● Conducts advanced enterprise-level performance tuning as well as network performance audits on a regular basis
● Monitors ongoing availability of network services and processes.
● Extensive knowledge on Cisco routers, firewall, and switches (Cisco IOS, IOS-XE, NX-OS)
● Validate that customer network configurations are functioning per designs by validating log flows, event threshold settings, and alarm notification settings
● Bachelor’s degree in Computer Science, Computer Engineering or related technical degree; six to eight years as a data network specialist in a medium to large enterprise network; or equivalent combination of education and experience.
● Extensive knowledge of Zscaler network proxies
● Advanced knowledge of network monitoring and performance tools such as SolarWinds Orion NPM, Cisco Prime Infrastructure, Wireshark, etc.
● Strategic thinker, strong interest and aptitude in collaborative big picture, enterprise-wide network infrastructure roadmaps.
● A commitment to improving processes and to customer satisfaction.
● Excellent written and verbal communication skills.
● Results oriented team player who will work towards meeting team commitments and ability to work within a cross-functional team.
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