< Back to Job Search
Location: Englewood, CO
Job Type: Contract to Hire, Full Time

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



● 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.

< Back to Job Search

Apply Now

    .doc, .docx, .pdf accepted