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Network Administrator II- Atlanta, GA or Various US Locations

Atlanta, GA, US, 30338

CRH Americas Materials Inc




Job ID:  234066


CRH's Americas Materials, a division of CRH, is the leading vertically integrated supplier of aggregates, cement, asphalt, readymixed concrete and paving and construction services in North America.  Our operations span North America with 24,100 employees at close to 1,300 locations in 44 US States and 6 Canadian provinces.


Position Overview


The Network Administrator II’s role is to ensure the stability and integrity of enterprise network services. This is achieved by evaluating network performance including availability, utilization, throughput, and latency; planning and executing the selection, installation, configuration, and testing of equipment; defining network policies and procedures; establishing connections and firewalls. This role will operate as a senior member of the Systems Operations team assisting in the implementation and support of SDWAN and local area networks (LANs). Responsibilities also include maintenance, support, and optimization of all network hardware, software, and communication links. This individual will also help analyze and resolve network hardware and software problems in a timely and accurate fashion, and provide end user training where required.


Key Responsibilities (Essential Duties and Functions)


To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.

  • Deploy company LANs, SDWAN, and wireless networks, including servers, routers, hubs, switches, UPSs, AP’s, SDWAN, Wi-Fi  and other hardware.
  • Maintain networks to ensure their smooth and reliable operation for fulfilling business objectives and processes.
  • Monitor and test network performance and provide network performance statistics and reports.
  • Assist in troubleshooting incidents and problem areas as needed.
  • Secures network by developing network access, monitoring, control, and evaluation; maintaining documentation.
  • Practice network asset management, including maintenance of network component inventory and related documentation and technical specifications information.
  • Participate in managing all network security solutions.
  • Perform server and security audits, and system backups and recovery.
  • Conduct research on network products, services, protocols, and standards to remain abreast of developments in the networking industry.
  • Participate in new and existing equipment, hardware, and software upgrades.
  • Provide guidance, and OJT to other network staff in maintaining all levels of the enterprises network architecture.
  • Interact with and lead vendors, manage services, and contractors to ensure proper functionality of the enterprise network services.
  • Maintain professional demeanor at all times while representing the company 
  • Regular and predictable attendance at assigned times is required 
  • Other duties as assigned






  • Bachelor’s Degree in Computer Science, Engineering or other related area or equivalent experience.
  • 3 or more years’ experience supporting an enterprise network.
  • Cisco CCNA and/or CCENT and CCNP
  • Experience implementing and supporting SDWAN for large scale enterprise networks
  • Experience supporting an enterprise WAN with a focus on reliability, security and performance
  • Experience with MPLS networks
  • Experience implementing and supporting Cisco DMVPN and Site to Site VPN Tunnels
  • Experience supporting Cisco ASA firewalls including AnyConnect and SSL VPN connectivity
  • Experience implementing and supporting connectivity into Cloud environments such as AWS and Azure
  • Experience with network tools such as Orion Solarwinds (NPM, NCM, NTA), NetFlow, Wireshark


Work Requirements


  • Must be 18 years in age or older.
  • Participation in after-hours on-call rotation
  • Must pass pre-employment drug screen and criminal background check.
  • Report to the office dressed appropriately and ready to begin work at the designated start time.
  • Strict adherence to safety requirements and procedures as outlined in the Employee Handbook.
  • Willingness to work independently within a team environment and assist the team with other duties as required
  • Ability to travel up to 10% as required by business needs


Knowledge/Skill Requirements


  • Demonstrate a hands-on, collaborative approach; works well in a team.
  • Demonstrates strong oral / written communication and listening skills.
  • Strong action orientation, drive for results and attention to detail.
  • Strong analytical and problem solving skills.
  • Ability to multitask and manage shifting priorities in a fast-paced environment.
  • Proven understanding of IP address management and IP subnets
  • Knowledge of IDS systems a plus
  • Strong understanding of network architecture as it relates to servers and SAN Storage
  • Knowledge of Riverbed Steelhead or related WAN acceleration technologies
  • Knowledge/experience of SD-WAN technologies a strong plus


Physical Requirements


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.

  • Able to communicate with others by telephone and in person.
  • Able to utilize a computer for word processing, email communication, and preparation of documents and presentations.
  • May require sitting for extended periods of time.


Work Environment


The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. 

  • Usually, normal office working conditions.  The noise level in the work environment is usually quiet.
  • The position may require work outside of normal business hours.


The statements included in this job description are not intended to be all-inclusive.  They represent typical elements and criteria necessary to successfully perform the job.  Other duties may be assigned as required.  Requirements for this job are subject to modification by the Company and its designees, and reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.


What CRH Offers You


  • A culture that values opportunity for growth, development and internal promotion
  • Highly competitive base pay
  • Comprehensive medical, dental and disability benefits programs
  • Group retirement savings program
  • Health and wellness programs


About CRH Americas


CRH Americas has a long and proud heritage as one of North America’s largest corporations. We are a proud reflection of the hundreds of family businesses, local and regional companies and mid to large sized enterprises that together form the CRH Americas family. CRH Americas operates with a decentralized, diversified structure, letting you work in a small company environment while having the career opportunities of a large enterprise.


CRH Americas is a great place to grow! If you’re up for a rewarding challenge, we invite you to take the first step and apply today! Please complete your online application and profile which will be sent directly to the appropriate Hiring Manager. Thank you for your interest in the CRH Americas family!


 EOE/Vet/Disability--If you want to know more, please click on this link

CRH Americas is an Affirmative Action and Equal Opportunity Employer.


Date Posted: 

Nearest Major Market: Atlanta

Job Segment: Network, Network Administrator, Engineer, Cisco, Telecom, Technology, Engineering