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Builders FirstSource Network Engineer II IT-Infrastructure & Networks in Denver, Colorado

Network Engineer II IT-Infrastructure & Networks

Corp Dallas - 2001 Bryan Street Suite 1600 (75201), 2001 Bryan Street, Dallas, Texas, United States of America ● Denver Admin Office - 7595 Technology Way (80237), 7595 E Technology Way, Denver, Colorado, United States of AmericaReq #19421

Monday, April 5, 2021


Under general supervision, responsible for the administration and maintenance of all network and telephony related infrastructure. Designs and implements networking/telephony solutions based upon business requirements.


  • Researches technologies and works with engineers to design/implement solutions based upon business initiatives

  • Provides training and documentation to the NOC and Administrator teams for newly deployed technologies

  • Acts as an escalation point to Network Administrators and the Network Operations Center.

  • Resolves LAN and WAN issues at remote locations

  • Coordinates installations of new equipment with local site contacts

  • Works with vendors to ensure cabling/equipment installations are completed per business requirements

  • Configures routers, switches, firewalls, load balancers, wireless access points / controllers, SD-WAN appliances in break/fix and new deployment scenarios

  • Performs software upgrades and patching on any supported devices

  • Participates in a rotating on-call schedule

  • Competent and professional written and verbal communication skills.

  • Plans and paces own work efficiency in order to meet daily, weekly, project, or team related productivity goals

  • Understands and observes all safety procedures and practices in order to prevent injury to self or co-workers; attends periodic safety meetings as required; may recommend changes to improve safety procedures

  • Other duties as assigned


This job has no supervisory responsibilities.


To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required.

  • Bachelor’s degree in Computer Science or related field

  • Ten to Twelve (10-12) years of network administration or related experience

  • Or equivalent combination of education and experience


  • Understands functions of devices such as Routers, Switches, Firewalls, Load balancers, WLAN Controllers / Access points, SD-WAN appliances and VoIP phones / servers

  • Understands layer 2 switching concepts/technologies: MAC addresses, VLANs, Trunks, STP, PVST, RVPST, MST


  • Knowledge of routing protocols such as: OSPF, EIGRP, eBGP/iBGP

  • Knowledge of routing concepts: Route Redistribution, Policy-Based Routing, VRFs

  • Knowledge of NAC and AAA protocols: TACACS+, RADIUS, 802.1x

  • Knowledge of NAC solutions such as Cisco ISE or Aruba Clearpass

  • Knowledge of network discovery protocols: SNMP, Netflow, CDP and LLDP

  • Knowledge of Access Control Lists (ACLs)

  • Knowledge of Data Center Technologies: VPCs, Cisco ACI

  • Understands common network troubleshooting tools such as ping, traceroute, nslookup

  • Understanding of Quality-of-Service (QoS)

  • Understands Network Services such as: DNS and DHCP

  • Knowledge of web filtering: HTTP/HTTPS, SSL decryption

  • Knowledge of VPNs: Remote-Access and Site-to-Site, DMVPN, SD-WAN

  • Knowledge of copper and fiber transport medias and their associated standards

  • Knowledge of VoIP/Digital/Analog Telephony technologies such as: SIP, SCCP, H.323, MGCP, FXO/FXS, ISDN

  • Knowledge of Load Balancing: VIPs, Pools, Health Monitors and Load Balancing Methods

  • Knowledge of Public Cloud environments: AWS, Azure and GCP

  • Knowledge of Cloud Security offerings: Zscaler, Umbrella, Prisma Access

  • Knowledge of Network Monitoring software: Solarwinds, DNA Center, Logic Monitor, etc.

  • Strong desire to learn new and emerging technologies

  • CCNP – Or equivalent knowledge/experience


The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

  • Work is in an office setting and generally sedentary with physical effort associated with using a computer, but may involve walking or standing for brief periods of time

  • May be required to occasionally lift, carry, push, pull, or otherwise move objects up to 25 pounds

  • Work in data centers, field locations wiring closets can require the ability to squat, kneel, crawl, reach and twist torso

In addition to the salary amount listed, this position is also eligible to earn a performance based bonus on an annual basis. Eligibility and the amount of the bonus varies based on individual performance and annual year-end evaluation, overall company success, and terms and conditions of the Company’s active bonus policy for the respective year.

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Other details

  • Job FamilyIT

  • Pay TypeSalary

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  • Corp Dallas - 2001 Bryan Street Suite 1600 (75201), 2001 Bryan Street, Dallas, Texas, United States of America

  • Denver Admin Office - 7595 Technology Way (80237), 7595 E Technology Way, Denver, Colorado, United States of America